MRAView User Manual - Medis medical imaging systems

TM
MRAView
1.1
User Manual
September 2, 2015
9.40.400.11.2
v4.0
Medis medical imaging systems bv
Schuttersveld 9, 2316 XG Leiden, the Netherlands
http://www.medis.nl
Medis medical imaging systems bv
Schuttersveld 9
2316 XG Leiden
P.O. Box 384
2300 AJ Leiden
The Netherlands
Medis medical imaging systems, Inc.
9360 Falls of Neuse Road, Suite 103
Raleigh, NC 27615-2484
USA
Telephone: +31 71 522 32 44
Fax: +31 71 521 56 17
E-mail: support@medis.nl
Web: www.medis.nl
Telephone: +1 919 278 7888
Fax: +1 919 847 8817
E-mail: support@medis.nl
Web: www.medis.nl
MRAView 1.1 User Manual
II
Legal Notices
Copyright Notice
© 2013-2015 Medis medical imaging systems bv. All rights reserved.
This manual is copyrighted and is protected by worldwide copyright laws and treaty provisions. No
part of this manual may be copied, reproduced, modified, published or distributed in any form or by
any means, for any purpose, without prior written permission of Medis medical imaging systems bv.
Permission is granted to freely print unmodified copies of this document as a whole, provided that
copies are not made or distributed for profit or commercial advantage.
Trademark Acknowledgments
MRAView and CMS are trademarks of Medis medical imaging systems bv. DICOM is the registered
trademark of the National Electrical Manufacturers Association for its standards publications
relating to digital communications of medical information. Microsoft, Windows, Windows XP,
Windows 7, and Windows 8 are either registered trademarks or trademarks of Microsoft Corporation
in the United States and/or other countries. All other brand, product, and company names
mentioned in this document are trademarks or registered trademarks of their respective owners.
MRAView 1.1 User Manual
III
Regulatory Information
Intended Use
MRAView is software intended to be used for the visualization and analysis of MR images of the
heart and blood vessels. This includes:

double oblique review of MR Angiographic images,

3D review by means of MIP and volume rendering,

3D reformatting of MR Angiographic images, and

performing caliper measurements.
The measurements are based on contours that are manually drawn by the clinician or trained
medical technician who is operating the software.
The analysis results obtained with MRAView are intended for use by cardiologists and radiologists:

to support clinical decisions concerning the heart and vessels, and

to support the evaluation of interventions or drug therapy applied for conditions of the
heart and vessels.
Indications for Use
MRAView is indicated for use in clinical settings where validated and reproducible quantified results
are needed to support the visualization and analysis of MR images of the heart and blood vessels for
use on individual patients with cardiovascular disease.
When the quantified results provided by MRAView are used in a clinical setting on MR images of an
individual patient, they can be used to support the clinical decisions making for the diagnosis of the
patient or the evaluation of the treatment applied. In this case, the results are explicitly not to be
regarded as the sole, irrefutable basis for clinical diagnosis, and they are only intended for use by
the responsible clinicians.
Warning
When the quantified results provided by MRAView are used in a clinical setting, they are explicitly
not to be regarded as the sole, irrefutable basis for clinical diagnosis, and they are only intended
for use by the clinicians responsible.
Note on Monitor Aspect Ratio and Resolution
The shapes of objects and calipers displayed may get slightly distorted when the resolution is
set to an aspect ratio different than the monitor's physical aspect ratio. This distortion does NOT
affect the accuracy of measurements or analyses. To avoid distortion, set the resolution of the
monitor to an aspect ratio equal to the physical aspect ratio. LCD monitors typically operate best at
their native resolution. Microsoft Windows recommends a resolution when it has sufficient
information to do so.
MRAView 1.1 User Manual
IV
European Regulations
MRAView is qualified as a class IIa medical device. It complies with the requirements of the Dutch
Medical Devices Decree (Besluit Medische Hulpmiddelen, Stb. 243/1995) and the European Medical
Device Directive 93/42/EEC.
0120
North American Regulations
MRAView has been cleared for market in the United States by the FDA (Food and Drug
Administration) under the provisions of Section 510(k) of the Food, Drug, and Cosmetic Act.
Caution
Federal law restricts this device to sale by or on the order of a physician.
MRAView complies with the requirements of the Canadian Medical Devices Regulations and has been
licensed as a Class II medical device.
MRAView 1.1 User Manual
V
Conventions Used
The following conventions are used throughout this manual to indicate mouse and keyboard actions
and to refer to elements in the user interface.
Mouse
Click
Press and release the primary mouse button. If you are lefthanded, you may have set the right mouse button as your
primary mouse button.
Click and drag
Press and hold the primary mouse button. Drag the mouse to
perform a function. Release the primary mouse button. If you
are left-handed, you may have set the right mouse button as
your primary mouse button.
Right-click
Press and release the secondary mouse button. If you are lefthanded, you may have set the left mouse button as your
secondary mouse button.
Middle-click
Press and release the wheel button or the middle mouse button.
If you have a two-button mouse, press and release the left and
the right mouse button simultaneously.
Double-click
Press and release the primary mouse button twice.
Wheel
Rotate the mouse scroll wheel.
Keyboard
SHIFT+click
Press and hold down the SHIFT key on your keyboard while you
click a button or object.
CTRL+K
Press and hold down the CTRL key on your keyboard while you
press K, then release both keys. This example shows or hides the
axes.
Typographical Conventions
On the Annotations node of the
Results window…
Names of buttons, fields, menus, menu options, and tab names
are capitalized and in bold.
Results > Text Annotation
A sequence of menu options that you select to perform a
specific task is indicated by angular brackets.
Label: Aortic root
Text that you type or that appears on the screen, such as
annotation labels, is displayed in Courier New.
MRAView 1.1 User Manual
VI
Symbols Used
Tip: Provides helpful information or an alternative working
method.
Note: Brings additional information to your attention.
Caution: Tells you to be careful when performing a task.
Warning: Warns you for a potentially dangerous situation in the
image representation or analysis, which may lead to incorrect
results. You are advised to follow the instructions to avoid this.
MRAView 1.1 User Manual
VII
Table of Contents
INTRODUCTION ....................................................................................................... 1
1
About MRAView ............................................................................................. 1
1.1
2
More Information ................................................................................. 1
Support ....................................................................................................... 2
GETTING STARTED ................................................................................................... 3
3
The MRAView Workspace .................................................................................. 3
3.1
Overview ........................................................................................... 3
3.2
Menu ................................................................................................ 3
3.3
Toolbars ............................................................................................ 5
3.4
Workspace Panes ................................................................................. 7
3.5
4
3.4.1
Results Pane ............................................................................. 8
3.4.2
Properties Pane ........................................................................ 10
3.4.3
LUTs Pane ............................................................................... 11
3.4.4
LUT Editor Pane ........................................................................ 12
Image View ....................................................................................... 13
3.5.1
Double-Oblique View .................................................................. 14
3.5.2
MIP, 3DVR and Stack Views ........................................................... 16
3.5.3
Multi-Time Point Image View ........................................................ 17
Image Navigation .......................................................................................... 19
4.1
Double-Oblique View ........................................................................... 19
4.1.1
Stacking .................................................................................. 21
4.1.2
Zooming.................................................................................. 21
4.1.3
Panning .................................................................................. 22
4.1.4
Swivel .................................................................................... 22
4.1.5
Window Width and Level ............................................................. 23
MRAView 1.1 User Manual
VIII
4.2
MIP, 3DVR and Stack Views .................................................................... 23
4.2.1
Rotate .................................................................................... 24
4.2.2
Zooming.................................................................................. 24
4.2.3
Panning .................................................................................. 25
4.2.4
Window Width and Level ............................................................. 25
WORKING WITH MRAVIEW ........................................................................................ 27
5
Results ....................................................................................................... 27
5.1
5.2
5.3
5.4
5.5
5.6
6
Annotations ....................................................................................... 27
5.1.1
Adding Annotations .................................................................... 27
5.1.2
Editing Annotations .................................................................... 28
5.1.3
Deleting Annotations .................................................................. 29
Measurements .................................................................................... 29
5.2.1
Distance Measurements ............................................................... 29
5.2.2
Area Measurements .................................................................... 32
Snapshots ......................................................................................... 33
5.3.1
Creating Snapshots .................................................................... 34
5.3.2
Deleting Snapshots ..................................................................... 34
Sculpting .......................................................................................... 35
5.4.1
Creating Sculptures .................................................................... 35
5.4.2
Editing Sculptures ...................................................................... 37
5.4.3
Deleting Sculptures .................................................................... 38
Reformatting ..................................................................................... 38
5.5.1
Stack Reformatting .................................................................... 38
5.5.2
Radial Reformatting ................................................................... 43
Saving Results .................................................................................... 47
5.6.1
Saving Results to File System ........................................................ 48
5.6.2
Saving Results to Enterprise Solution ............................................... 49
5.6.3
Finishing and saving the session ..................................................... 49
Audit Trailing ............................................................................................... 50
MRAView 1.1 User Manual
IX
6.1
Viewing Audit Trails ............................................................................. 50
TROUBLESHOOTING ............................................................................................... 51
7
Troubleshooting............................................................................................ 51
REFERENCE .......................................................................................................... 53
8
Shortcut Keys............................................................................................... 53
MRAView 1.1 User Manual
X
Introduction
1
About MRAView
MRAView is the Medis software solution for the visualization of magnetic resonance angiography
(MRA) images. It provides intuitive tools for manipulating MRA images, displaying MRA images in 2D
and 3D, and provides tools for easy and quick measurements.
This software solution offers quantification results that enable interventional cardiologists and
radiologists to review MR angiograms, and it provides a solid basis for the assessment of new
therapies.
MRAView must be used by qualified medical personnel or trained technicians. If the analysis
results are used to reach a diagnosis, the results must be interpreted by a qualified medical
professional. MRAView should not be used for purposes other than those indicated in the section
Intended Use and the section Indications for Use.
1.1 More Information
You can find background information in a number of additional documents. These are available in
the Documents folder on the MRAView CD, and in the Documents folder in the MRAView
installation directory on your system or network.
MRAView 1.0 User Manual
1
Introduction
2
Support
Medis is committed to offering high-quality products and services. If you have questions about the
software, or if you would like to make suggestions for improvements in the software or in the
documentation, please contact the Medis helpdesk.
If you contact the Medis helpdesk by e-mail, mention the name of the software and the version
number in the subject field. To look up the version number of your software, select Help > About…
in the menu bar.
North America and South America
Medis medical imaging systems, Inc.
E-mail: support@medis.nl
Telephone: +1 919 278 7888 (working days 9.00-17.00 EST)
Europe, Africa, Asia, and Australia
Medis medical imaging systems bv
E-mail: support@medis.nl
Telephone: +31 71 522 32 44 (working days 9.00-17.00 CET)
MRAView 1.1 User Manual
2
Getting Started
3
The MRAView Workspace
This chapter covers the following topics:

overview

toolbars

workspace panes

image view
3.1 Overview
The main workspace consists of toolbars, multiple workspace panes, and the image view.
Toolbars
Image View
Workspace
panes
Medis Suite
Patient Browser
You can customize the main workspace by hiding or moving the workspace panes and toolbars. Any
changes that you make to the main workspace are saved on a per user basis for future sessions.
3.2 Menu
The menu button
contains all of the main functionality that you need when you are working
with MRAView. These main commands are organized as follows: Panes, Toolbars, Cine, Image
Control and Calipers. For some of these commands, tool buttons are available in the toolbars as
shortcuts.
MRAView 1.0 User Manual
3
Getting Started
Menu commands may be grayed out when you are performing a procedure, such as a radial
reformat. You can make the menu commands active by canceling or finishing the procedure.
Menu item: View
Option
Description
Panes >
Show / hide panes
(patient, results)
Toolbars >
Show / hide toolbars
Cine >
Show different time points
Image Control >
Calipers >
Reset layout
Reset Window/Level
Reset the Window/Level
Show/Hide
Workspace
Return to volume in
original state
Show/hide workspace
panes
Show/Hide axes
Show/hide the axes
Options…
Open dialog for general
options
About Medis
About box
Initial View State
MRAView 1.1 User Manual
Zoom, panning, swivel and
stacking.
Add measurements,
annotations, sculpture and
reformats.
Reset the window and
toolbar layout
4
Getting Started
3.3 Toolbars
The icons in the toolbars are shortcuts to frequently used menu options. You can make toolbars
float and move them to another part of the main window. You can also show or hide toolbars.
To make a toolbar float

Click on the double-bar grip handle of the toolbar and drag it.
You can now move the toolbar to any location in the main window or outside of the
application. Simply click and drag the toolbar to its new position. The position of the
toolbar is saved for a next session when you close the application.
To show or hide a toolbar
Select the toolbars menu by right clicking any space in the toolbar. This context menu will appear
1. Select the toolbutton
and Toolbars.
2. Select a check box to show the toolbar, clear a check box to hide the toolbar.
Or,
1. Right-click in the toolbar area. This opens a context menu.
2. Select a check box to show the toolbar, clear a check box to hide the toolbar.
The state of the toolbars is saved on a per user basis for future sessions when you close the
application.
MRAView 1.1 User Manual
5
Getting Started
Icon
Function
General Toolbar
Go to the initial view state
Show or hide the workspace
Show or hide the axes
Movie Toolbar
Go to the previous time point
Go to the next time point
Set to the first time point
Set to the last time point
Stop the movie
Play the movie forward
Play the movie backward
Moderate the speed of the movie.
Results Toolbar
Create a distance measurement
Create an area measurement
Create an annotation
Create a snapshot
Create a reformat
MRAView 1.1 User Manual
6
Getting Started
Icon
Function
Create a radial reformat
Create a sculpture
Copy all measurement information to clipboard
Image Control Toolbar
Scroll through the images
Zooming
Panning
Swivel
Alter Window width and Window Level
3.4 Workspace Panes
By default, the workspace displays the following panes to the right of the image view.

LUTs

Results

LUT Editor

Properties
You can show or hide panes, make panes float, dock panes, combine panes into one tabbed panel
and remove panes from a panel.
To show or hide a pane

Select the button
to hide it.
and choose Panes, and select a pane to show it. Clear its check box
To show or hide all panes

Click
in the toolbar, or press F11 to show or hide all panes.
MRAView 1.1 User Manual
7
Getting Started
To make a pane float

Click and drag the title bar of the pane over the area of your screen to which you want to
move it.
To dock a pane

Double-click the title bar to move a pane back to its original docked position.
Or,
1. Click and drag the title bar of the pane to the left or right side of the workspace as shown
in the picture on page 3.
2. Move the pane up or down to select one of the anchor areas available.
As the pane approaches an anchor area, the area is highlighted with a dotted line. The
pane can be combined with another pane or inserted separately.
3. When the anchor area of your choice appears highlighted, release the mouse button.
This moves the pane to the selected position.
To combine panes into one tabbed panel

Click and drag the title bar of the pane to the title bar of the pane with which you want to
combine it.
This creates a panel. You can dock all panes into a panel.
To remove panes from a panel

Click and drag the title bar of the pane away from the panel.
To reset the panel layout

Select the button
and choose View > Reset Layout from the menu, or press F6.
3.4.1 Results Pane
The Results pane lists the results of actions performed on the volume: annotations, measurements,
snapshots, reformats and sculptures.
MRAView 1.1 User Manual
8
Getting Started
You can collapse and expand the branches of the tree by double-clicking the top-level nodes.
You can right-click a result to perform actions on the result. Depending on the type of result, you
will get a context menu with several options.
Locate:
The volume is rotated to the orientation at which the result was
originally performed.
Locate may be grayed out. You can make this menu item active by
canceling or finishing the active procedure.
Edit:
The Properties pane is activated. You can modify the properties.
Save:
The result is saved to the system. Results that are saved (as opposed to
exported) can be loaded back into MRAView.
This option is only available for systems where MRAView is
integrated.
Export:
MRAView 1.1 User Manual
The result is exported to the system. Results that are exported (as
opposed to saved) cannot be loaded back into MRAView.
9
Getting Started
This option is only available for systems where MRAView is
integrated.
Export to…:
You are prompted to select a file path, after which the snapshot is
exported to disk.
Copy to Clipboard:
The result label and value (if applicable) are copied to the clipboard.
Remove:
The result is deleted.
3.4.2 Properties Pane
The Properties pane shows the properties of the selected result. You can always modify the Label,
but you must activate a reformat or sculpture to view or modify their other properties.
To modify a Label
1. On the Results pane, select the result.
2. On the Properties pane, click the ellipsis on the right of the Label field and select a
predefined label, or type a custom label and press Enter.
Or (annotations, measurements and snapshots only),
1. On the Results pane, right-click on the result and select Edit.
2. Select a predefined label, or type a custom label and press Enter.
To modify the other properties of a reformat or sculpture
1. On the Results pane, right-click on the reformat or sculpture and select Edit.
2. On the Properties pane, modify the properties.
MRAView 1.1 User Manual
10
Getting Started
3.4.3 LUTs Pane
The LUTs pane displays the available LUTs as thumbnails of the volume rendering (3DVR) view. Use
the LUTs pane to select another LUT to apply to the 3DVR view.
The LUTs pane has a context menu, which you can access by right-clicking on a thumbnail. From
the context menu, you can set the selected LUT as the default, save the selected LUT with a new
name, or, if the LUT is not one of the standard LUTs, delete the selected LUT.
To set the selected LUT as the default

Right-click on the desired LUT and select Set As Default.
The default LUT is the LUT first used when MRAView starts.
To save the selected LUT with a new name
1. Right-click on the desired LUT and select Save As…
2. Type the name of the new LUT and click OK.
To delete the selected LUT

Right-click on the desired LUT and select Delete.

Click on the desired LUT and press the Delete key.
Or,
MRAView 1.1 User Manual
11
Getting Started
3.4.4 LUT Editor Pane
You can create a new lookup table (LUT) on the LUT Editor pane. A LUT transforms the grey-scale
values in the original image into colors, which can help to visualize the data with the volume
rendering (3DVR) view.
To aid in creating a LUT, a histogram is shown in grey in the chart on the LUT Editor pane. This
indicates how many voxels in the original image occur for each grey-scale value. You may choose to
display the grey values in a certain range with a specific color.
To create a LUT, you define any number of points, each with its own position, color and opacity.
To create a new point

Click anywhere on the chart (except on a point).
To delete a point

Click on the point and press the Delete key.

Select the point, then right-click on the chart and select Delete Active Point.
Or,
To change the color of a point

Click on the Color field to open the color picker.
The transition between neighboring colors is smoothed.
The position ranges from 0.0 to 1.0, and the opacity ranges from 0 to 100.
MRAView is delivered with a set of predefined LUTs which may be modified, but not saved.
To return a predefined LUT to its default settings
MRAView 1.1 User Manual
12
Getting Started

Click the Reset button.
To save a modified LUT with a new name

Click the Save As… button.
Changes to a predefined LUT are reverted with the Save As… action, and when MRAView is
restarted.
To save changes to a custom LUT

Click the Save button.
The Save button is only enabled once you have created your own LUT with Save As…, and then
modified the custom LUT.
It is common to define a LUT with an ascending opacity, i.e. the larger the grey value, the larger
the opacity.
To reset the LUT to a ramp

Right-click on the chart and select Reset to Ramp.
A LUT is created with two points with ascending opacity.
The Window is the range of grey scales displayed. Voxels with grey scales outside that range
are mapped to the nearest color in the LUT. The Level is the grey scale at the center of the
Window. Thus, you can adjust the Window and Level to quickly include a select range of grey scale
values.
3.5 Image View
The Image View displays the currently loaded volume 2x2 in several different representations.
By default, the images in the Image View display a number of patient details and volume
information. You can show or hide these overlays from the image.
To show or hide the patient or volume information

Select the button
and choose > Options, select Hangings, and select or deselect
Show patient information.
To temporarily hide all overlay graphics

Hold down the ALT key and the right mouse button.
You can enlarge one of the viewports by double clicking on it.
MRAView 1.1 User Manual
13
Getting Started
3.5.1 Double-Oblique View
The three viewports highlighted below, collectively called the “double oblique” view (DOV), are
always displayed. They show the volume from three perpendicular points of view.
3.5.1.1 Slabs
Each double-oblique image is a maximum intensity projection (MIP), minimum intensity projection
(MinIP) or Average image from a slice through the volume, called a slab. The slab thickness is
displayed in the upper-right corner of each double-oblique viewport.
You can change the projection method performed on each slab among MIP, MinIP and Average. The
MIP displays the maximum voxel value through the slab, the MinIP displays the minimum voxel value
through the slab, and the Average displays the average voxel value through the slab.
To toggle among MIP, MinIP and Average
Click the overlay graphic in a double-oblique viewport.
MRAView 1.1 User Manual
14
Getting Started
You can change the thickness of the slab from which each double-oblique image is generated.
To change the double-oblique slab thickness

Click the dashed segment of one axis and drag up or left to increase the slab thickness, or
in the opposite direction to decrease the thickness.

Click the Slab interactive overlay graphics and drag up or down to increase or decrease the
thickness.
Or,
MRAView 1.1 User Manual
15
Getting Started
Or,

Right-click the Slab interactive overlay graphics and type a specific value into the entry
field.
3.5.2 MIP, 3DVR and Stack Views
You can toggle the lower-right viewport among several different representations. By default the
maximum intensity projection (MIP) of the entire volume is displayed. You can change the lowerright viewport to the volume rendering (3DVR) view or, when a reformat has been performed, to
the Stack view.
The MIP and 3DVR views are enabled by default with the option,
and choose > Options >
Hangings > DoubleOblique > Enable hardware rendering. If this option is unchecked, the MIP,
3DVR and LUT thumbnails will not be generated.
To toggle among MIP, 3DVR and Stack views

Click the overlay graphic in the lower-right viewport.
MRAView 1.1 User Manual
16
Getting Started
Or,

Right-click the overlay graphic in the lower-right viewport and select the view from the
context menu.
Or,
1. Click the lower-right viewport to select it.
2. Successively press the space bar or the backspace key.
3.5.3 Multi-Time Point Image View
You can display images with multiple time points. When such an image is loaded, additional overlay
graphics are displayed.
TP: The time point / Total number of time points
TD: Trigger delay
MRAView 1.1 User Manual
17
Getting Started
You can move forward or backward in time in several ways.
To move forward or backward in time

Click

Press the left or right arrow key to move to the previous or next time point.

Click the TP interactive graphics on one of the viewports to move to the next time point.

Right-click the TP interactive graphics and enter the desired number of the time point.

Select
or
on the Viewing toolbar to move to the previous or next time point.
Or,
Or,
Or,
Or,
and choose Cine > Previous Time Point or View > Next Time Point.
MRAView 1.1 User Manual
18
Getting Started
4
Image Navigation
This chapter describes how you can move around inside the volume to focus on what is most
interesting.
To return the volume to its initial state

Click
in the toolbar, or select
and choose Initial View State.
4.1 Double-Oblique View
The three viewports that make up the double-oblique view (DOV) show the volume from three
perpendicular perspectives. Each perspective shows a slice at a specific depth with a certain
thickness.
The orientation for each viewport is indicated by the orientation cube in the lower right. Rotating
one viewport has the effect of moving a camera’s perspective. As you rotate the volume, the
orientation cube rotates, too. The letters on the cube indicate position:
Anterior
Head
Left
Posterior
Feet
Right
Right-click on the orientation cube to select and rotate to one of the six primary orientations,
the Original orientation produced while scanning, or Reset to the default orientation when
MRAView first started.
The axes shown on each viewport also indicate orientation. Each color axis appears on two
viewports, forming a plane: red, green and blue.
To show or hide the axes

Click
in the toolbar, or press CTRL+K, or select
the menu.
and choose Show/Hide Axes in
You can navigate through the volume in many different ways. The primary method of navigation is
to click and drag the axes, or rotate the axes. The axes are re-centered in the viewport after
translating them.
To center the image at a new location
1. Move the mouse to the axes center. The mouse cursor changes to the Move cursor
.
2. Click and drag the axes to the desired location.
MRAView 1.1 User Manual
19
Getting Started
By default, the axes are re-centered in that viewport. To disable auto-centering, select
and Options > Hangings > DoubleOblique. Deselect Enable auto center.
To drag the axes vertically, press the Ctrl key after pressing the mouse key, then drag.
To drag the axes horizontally, press the SHIFT key after pressing the mouse key, then drag.
To rotate the image about the center of the axes
1. Move the mouse to a circular grip at the end of one axis. The mouse cursor changes to the
Rotate cursor
.
2. Click and drag the axes to the desired angle.
MRAView 1.1 User Manual
20
Getting Started
You can also select from one of several navigation methods on the left mouse button. Each method
is available from the context menu of the double-oblique viewport. The selection in the context
menu defines what the click-and-drag mouse function does.
The default action of the left mouse button can be changed with the option , select
and Options > Hangings > DoubleOblique. Modify Left Mouse Button Default Action > DOV.
4.1.1 Stacking
You can move into and out of the viewport slices using Stacking when you see the Stack cursor
.
To move in and out

Scroll the mouse wheel.

Press and hold ALT+SHIFT, then click and drag the mouse up and down.
Or,
Or,
1. Select Stacking from the context menu.
2. Click and drag the mouse forward and backward to scroll through the slices.
With either technique, if scrolling reaches either end it will stop at the first or last slice.
4.1.2 Zooming
You can zoom in and out of the viewport using Zooming when you see the Magnify cursor
.
To zoom in and out

Press and hold the CTRL key while turning the mouse wheel.

Press and hold SHIFT+CTRL, then click and drag the mouse up and down.

Click and drag on the interactive labels of the scale overlay graphics.
Or,
Or,
MRAView 1.1 User Manual
21
Getting Started
Or,

Click on the interactive labels of the scale overlay graphics to zoom in.
Right-click on the interactive labels to zoom out.
Or,
1. Select Zooming from the context menu.
2. Click and drag the mouse forward and backward to zoom in and out.
The current zoom factor is displayed on the scale overlay graphics in each viewport. The value
above the scale is the physical size of the scale. The number below the scale indicates the relative
zoom: 100% means one display pixel equals one acquisition voxel.
4.1.3 Panning
You can move the image within the viewport left, right, up and down using Panning when you see
the Hand cursor
.
To pan the image

Press and hold the CTRL key, then click and drag the mouse in any direction.

Middle-click and drag the mouse in any direction.
Or,
Or,
1. Select Panning from the context menu.
2. Click and drag the mouse in any direction.
4.1.4 Swivel
You can rotate the volume about the axes using Swivel when you see the Rotate cursor
.
To swivel about an axis

Press and hold the ALT key, then click and drag the mouse in any direction.
Or,
1. Select Swivel from the context menu.
2. Click and drag the mouse in any direction.
The volume rotates around the axis (red, green or blue) perpendicular to the direction of mouse
movement.
MRAView 1.1 User Manual
22
Getting Started
4.1.5 Window Width and Level
You can adjust the window width and level (WWL) when you see the WWL cursor
.
To adjust the window width and level

Right-click and drag
o
Right or left to increase or decrease the width.
o
Up or down to increase or decrease the level.
Or,

Click on the window width or level interactive graphics and drag up or down to increase or
decrease the window width or level.

Right-click on the window width or level interactive graphics and enter the desires values.
Or,
Or,
1. Select Window/Level from the context menu
2. Click and drag
o
Right or left to increase or decrease the width.
o
Up or down to increase or decrease the level.
The current window width and level are displayed in the lower-right overlay graphics in each
viewport.
To reset the window width and level

Press the 1 key.

Click the middle mouse button on the window width and level interactive graphics.
Or,
Different window width and level values are maintained for the double-oblique view, MIP view
and 3DVR view.
4.2 MIP, 3DVR and Stack Views
You can view the maximum intensity projection (MIP), volume rendering (3DVR) and Stack views in
the lower-right viewport as explained in section 3.5.2.
MRAView 1.1 User Manual
23
Getting Started
The MIP and 3DVR views are enabled by default with the
and Options > Hangings >
DoubleOblique > Enable hardware rendering. If this option is unchecked, the MIP, 3DVR and LUT
thumbnails will not be generated.
You can select from one of several navigation methods on the left mouse button. Each method is
available from the context menu of the lower-right viewport. The selection in the context menu
defines what the click and drag mouse function does.
Stack
MIP and 3DVR
The default action of the left mouse button can be changed with the option
and Options >
Hangings > DoubleOblique > Left Mouse Button Default Action > Stack or MIP and VR.
4.2.1 Rotate
You can rotate the volume rendering in 3D space using Rotate when you see the Rotate cursor
.
To rotate

Press and hold the ALT key, then click and drag the mouse in any direction.
Or,
1. Select Rotate from the context menu.
2. Click and drag the mouse in any direction.
The volume rotates around the axis perpendicular to the direction of mouse movement.
4.2.2 Zooming
You can zoom in and out of the viewport using Zooming when you see the Magnify cursor
.
To zoom in and out

Press and hold the CTRL key while turning the mouse wheel.

Press and hold SHIFT+CTRL, then click and drag the mouse up and down.

(Stack only) Click and drag on the interactive labels of the scale overlay graphics.
Or,
Or,
MRAView 1.1 User Manual
24
Getting Started
Or,

(Stack only) Click on the interactive labels of the scale overlay graphics to zoom in.
Right-click on the interactive labels to zoom out.
Or,
3. Select Zooming from the context menu.
4. Click and drag the mouse forward and backward to zoom in and out.
The current zoom factor is displayed on the scale overlay graphics in the Stack viewport. The
value above the scale is the physical size of the scale. The number below the scale indicates the
relative zoom: 100% means one vertical display pixel equals one acquisition voxel.
You can reset the zoom factor to 100% by clicking the middle mouse button over the zoom
interactive graphics.
4.2.3 Panning
You can move the image within the viewport left, right, up and down using Panning when you see
the Hand cursor
.
To pan the image

Press and hold the CTRL key, then click and drag the mouse in any direction.

Middle-click and drag the mouse in any direction.
Or,
Or,
1. Select Panning from the context menu.
2. Click and drag the mouse in any direction.
4.2.4 Window Width and Level
You can adjust the window width and level (WWL) in two ways when you see the WWL cursor
.
To adjust the window width and level

Right-click and drag
•
Right or left to increase or decrease the width.
•
Up or down to increase or decrease the level.
MRAView 1.1 User Manual
25
Getting Started
Or,
1. Select Window/Level from the context menu
2. Click and drag
•
Right or left to increase or decrease the width.
•
Up or down to increase or decrease the level.
The current window width and level are displayed in the lower-right overlay graphics.
The 3DVR window width and level can also be adjusted on the LUT Editor.
You can reset the window width and level by pressing the 1 key.
Different window width and level values are maintained for the double-oblique view, MIP view
and 3DVR view.
MRAView 1.1 User Manual
26
Working with MRAView
5
Results
Results are the work products that you can produce with MRAView. In this application the results
you can create include:








Annotations,
Distance measurements,
Area measurements,
Snapshots,
Sculptures to remove extraneous information,
Reformats in a rectangular format,
Reformats in a radial format, and
You can save all the results by various means.
MRAView is delivered with a default set of predefined result labels. The predefined labels can be
modified in the file MRAViewProcedureLabels.xml found in your application data folder.
5.1 Annotations
This chapter covers adding, editing and deleting annotations.
You can change the default text label, graphics color, and arrowhead style by selecting
and
Options > Results > Text annotation. The new graphics color and arrowhead style are applied to
existing annotations.
5.1.1 Adding Annotations
You can add annotations to a viewport to mark it for analysis or to draw attention to specific
details. Annotations are displayed in the Image View, and listed on the Results pane.
MRAView 1.0 User Manual
27
Working With MRAView
When you navigate to another location in the volume, your annotation may not be displayed on
the double-oblique viewport. This is because the point to which the annotation refers does not lie
on the currently visible slice. To see your annotation again, right-click on the annotation on the
Results pane and select Locate; or double click on the annotation on the Results pane.
To add an annotation
1. Click
in the toolbar, or select Results > Text Annotation in the menu.
2. Click and drag in the image to draw the arrow.
3. Select a predefined label, or type a custom label and press Enter.
4. Click and drag the arrowhead or the text to adjust the exact location of the image that you
want to mark.
5. Click outside the annotation. The graphic changes to white indicating it has left edit mode.
This adds the annotation to the Annotations list in the Results pane. At any time while the
annotation is still active you can press Esc to remove the annotation.
5.1.2 Editing Annotations
You can modify the text and location of annotations that were added previously.
To edit annotation text
1. On the Results pane, select the result.
2. On the Properties pane, click the ellipsis on the right of the Label field and select a
predefined label, or type a custom label and press Enter.
Or,
1. On the Results pane, right-click on the result and select Edit.
2. Select a predefined label, or type a custom label and press Enter.
MRAView 1.1 User Manual
28
Working With MRAView
To edit the annotation location
1. Click the annotation graphic.
2. Click and drag the arrowhead or the text to adjust the exact location of the image that you
want to mark.
5.1.3 Deleting Annotations
You can delete any annotation that was added to a viewport.
To delete an annotation

Click the annotation graphic and press Delete.
Or,
1. Select the annotation in the Annotations list in the Results pane.
2. Press Delete on your keyboard or right-click and select Remove.
This deletes the annotation.
5.2 Measurements
This section covers the following topics:

Creating, editing and deleting distance measurements, and

Creating, editing and deleting area measurements.
5.2.1 Distance Measurements
You can measure the distance from one point to another. When you have measured a distance, you
can modify the annotation and the end points of the measurement.
You can change the default text label, graphics color, and arrowhead style by selecting
and
Options > Results > Distance measurement. The new graphics color and arrowhead style are
applied to existing distance measurements.
When you navigate to another location in the volume, your measurement may not be displayed
on the double-oblique viewport. This is because the points between which you measured do not lie
on the currently visible slice. To see your measurement again, right-click on the measurement on
the Results pane and select Locate; or double click on the measurement on the Results pane.
MRAView 1.1 User Manual
29
Working With MRAView
5.2.1.1 Creating Distance Measurements
You can add distance measurements to a viewport for analysis. Distance measurements are
displayed in the Image View, and listed on the Results pane.
To measure a distance
1. Click
in the toolbar, or press the D key, or select Results > Distance Measurement in
the menu.
2. Click and drag in the image from the start point of the measurement to the end point.
3. Select a predefined label, or type a custom label and press Enter.
4. Click and drag either arrowhead or the text to adjust the points of the image between
which you want to measure.
5. Click outside the measurement. The graphic changes to white indicating it has left edit
mode.
This adds the measurement to the Measurement list in the Results pane. At any time while the
measurement is still active you can press Esc to remove the measurement.
5.2.1.2 Editing Distance Measurements
You can modify the text and location of distance measurements that were added previously.
To edit distance measurement text
1. On the Results pane, select the result.
2. On the Properties pane, click the ellipsis on the right of the Label field and select a
predefined label, or type a custom label and press Enter.
MRAView 1.1 User Manual
30
Working With MRAView
Or,
1. On the Results pane, right-click on the result and select Edit.
2. Select a predefined label, or type a custom label and press Enter.
To edit distance measurement end points
1. Click the distance measurement graphic.
2. Click and drag either arrowhead to adjust the points in the image between which you want
to measure.
5.2.1.3 Copying Distance Measurements
You can copy a distance measurement to the clipboard.
To copy a distance measurement

On the Results pane, right-click on the result and select Copy to Clipboard.
The result label and value are copied to the clipboard.
5.2.1.4 Deleting Distance Measurements
You can delete any distance measurement that was added to a viewport.
To delete a distance measurement

Click the distance measurement graphic and press Delete.
Or,
1. Select the distance measurement in the Measurements list on the Results pane.
2. Press Delete on your keyboard or right-click and select Remove.
This deletes the distance measurement.
MRAView 1.1 User Manual
31
Working With MRAView
5.2.2 Area Measurements
You use the area measurement tool to draw and measure 2D areas. When you have measured an
area, you can modify the area contour or annotation.
You can change the default text label, graphics color, and which measurements are displayed by
selecting
and Options > Results > Area measurement. The new graphics color is applied to
existing area measurements.
When you navigate to another location in the volume, your measurement may not be displayed
on the double-oblique viewport. This is because the 2D plane on which you measured the area is
not coplanar with the currently visible slice. To see your measurement again, right-click on the
measurement on the Results pane and select Locate; or double click on the measurement on the
Results pane.
5.2.2.1 Creating Area Measurements
To measure an area
1. Click
menu.
in the toolbar, or press the A key, or select Results > Area Measurement in the
2. Click and drag to draw the area. The contour is automatically closed when you release the
mouse button.
3. Modify the contour as necessary (see Editing Area Measurements below).
4. In the Properties pane, check Area or Circumference to display either or both
measurements.
5. Click outside the contour. The graphic changes to white indicating it has left edit mode.
This adds the measurement to the Measurement list in the Results pane. At any time while the
measurement is still active you can press Esc to remove the measurement.
MRAView 1.1 User Manual
32
Working With MRAView
5.2.2.2 Editing Area Measurements
To modify the contour
1. Click the contour to make it active.
2. Near the existing contour click and drag an altered contour. The alteration will be
combined with the original.
Or,
Right-click on the contour and drag it, using the rubber-band tool
.
3. Click outside the contour. The graphic changes to white indicating it is no longer in edit
mode.
5.2.2.3 Copying Area Measurements
You can copy an area measurement to the clipboard.
To copy an area measurement

On the Results pane, right-click on the result and select Copy to Clipboard.
The result label and value(s) are copied to the clipboard.
5.2.2.4 Deleting Area Measurements
You can delete any area measurement that was added to a viewport.
To delete an area measurement

Click the area measurement graphic and press Delete.
Or,
1. Select the area measurement in the Measurements list on the Results pane.
2. Press Delete on your keyboard or right-click and select Remove.
This deletes the area measurement.
5.3 Snapshots
You can save snapshots as evidence of a diagnosis. Snapshots are displayed on the Properties pane,
and are listed on the Results pane. When a snapshot is created, you can modify the name at any
time. A snapshot can be exported as described in section 5.5.2.5.
MRAView 1.1 User Manual
33
Working With MRAView
You can change the default text label by selecting
and Options > Results > Snapshot.
A snapshot contains by default all graphics elements but no text. You can also include all text for
future snapshots by checking the option
text.
and Options > Results > Snapshot > Include overlay
When you navigate to another location in the volume, the annotations and measurements shown
in the snapshot may not be displayed on the double-oblique viewport. This is because the points at
which the annotations and measurements were created do not lie on the currently visible slice. To
return to the same slice where a snapshot was created, right-click on the snapshot on the Results
pane and select Locate; or double click on the snapshot on the Results pane.
5.3.1 Creating Snapshots
You can create a snapshot of the current state of any viewport.
To save a snapshot
1. Click
in the toolbar, or press the S key, or select Results > Snapshot in the menu.
2. Click the viewport that you want to save as a snapshot.
3. On the Properties pane, click the ellipsis on the right of the Label field and select a
predefined label, or type a custom label and press Enter.
5.3.2 Deleting Snapshots
You can delete any snapshot that was created.
To delete a snapshot
1. Select the snapshot in the Snapshots list on the Results pane.
MRAView 1.1 User Manual
34
Working With MRAView
2. Press Delete on your keyboard or right-click and select Remove.
This deletes the snapshot.
5.4 Sculpting
You can remove extraneous information from the volume using sculpting. This can help draw
attention to the subject of interest. Once created, you can later modify a sculpture. Sculptures are
usually saved as part of a reformat.
You can change the default text label by selecting
and Options > Results > Sculpture.
5.4.1 Creating Sculptures
Sculpting is done by drawing a 2D contour which is then projected through the volume. Thus, it can
be useful to first orient the volume strategically before drawing the contour. You can then remove
(or restore) the voxels inside or outside the contour.
Original
(with sculpture
contour)
Sculpted
MRAView 1.1 User Manual
35
Working With MRAView
To create a sculpture
1. Click
in the toolbar, or select Results > Sculpture in the menu.
2. On the Properties pane, click the ellipsis on the right of the Label field and select a
predefined label, or type a custom label and press Enter.
3. Click and drag to draw the contour. The contour is automatically closed when you release
the mouse button.
Anytime a contour is active, you can delete it by pressing the Delete key.
4. Modify the contour as necessary.

Near the existing contour click and drag an altered contour. The alteration will be
combined with the original.
Or,

Right-click on the contour and drag it, using the rubber-band tool
.
5. On the Properties pane, select the desired Action.
With
Exclude selected the mouse cursor changes to an eraser
in the viewport.
With
Include selected the mouse cursor changes to a paint bucket
in the viewport.
6. Click inside or outside the contour to perform the selected action.
Pressing the SHIFT key before the click performs the selected action on the opposite
region, inside instead of outside or outside instead of inside.
7. Navigate in the volume as desired.
MRAView 1.1 User Manual
36
Working With MRAView

Stacking: Wheel.

Zooming: CTRL+wheel.

Panning: CTRL+click and drag, or middle-click and drag.

Rotate: ALT+click and drag.

Window width and level: Right-click and drag.
8. Repeat steps 3 – 7 as necessary.
9. Click Finish on the Properties pane.
While editing a sculpture, you can hide the axes if they get in the way by toggling the Axes
toolbar button
.
You can restore the complete volume temporarily.

If you are editing the sculpture, clear the Apply sculpture checkbox on the Properties
pane.

If you are not editing the sculpture, right-click on the sculpture on the Results pane and
clear the checkbox next to Apply.
You can undo or redo an action by clicking the
actions by clicking the
or the
button. You can undo all
button.
5.4.2 Editing Sculptures
You can edit the sculpture label in any state, but to edit the sculpture itself you must enter its edit
mode.
To edit sculpture text
1. On the Results pane, select the sculpture.
2. On the Properties pane, click the ellipsis on the right of the Label field and select a
predefined label, or type a custom label and press Enter.
Or,
1. On the Results pane, right-click on the result and select Edit.
2. Select a predefined label, or type a custom label and press Enter.
To edit a sculpture
1. On the Results pane, right-click on the result and select Edit.
MRAView 1.1 User Manual
37
Working With MRAView
2. Follow the instructions in section 5.4.1 beginning at step 3.
5.4.3 Deleting Sculptures
You can delete any sculpture.
To delete a sculpture
1. Select the sculpture in the Sculptures list on the Results pane.
2. Press Delete on your keyboard or right-click and select Remove.
This deletes the sculpture.
5.5 Reformatting
You can create a new volume based on a sampling of the existing volume at any affine
transformation, such as scaling, rotation, or translation, achieved through the MRAView user
interface. You can also create a new volume based on a radial sampling of the existing volume.
5.5.1 Stack Reformatting
A stack reformat is a sampling of the existing volume at the translation, rotation and zoom
currently displayed in the double-oblique view. The sampling is stored as a series of slices. The
sample spacing is defined as a property of the reformat.
MRAView 1.1 User Manual
38
Working With MRAView
You can change the default properties by selecting
and Options > Results > Reformat.
Stack reformats can be saved in DICOM format and reopened in MRAView. Stack reformats can also
be saved as a video in AVI format. Videos must be opened with a compatible viewer.
5.5.1.1 Creating Stack Reformats
You may want to orient the volume before performing a stack reformat. Stack reformats are listed
on the Results pane.
To create a stack reformat
1. Click
in the toolbar, or
and Calipers > Reformat in the menu.
2. Click in the viewport that is coplanar to the first slice.
Overlay graphics appear that indicate the initial geometry of the stack.
The lower-right viewport switches to the Stack view and shows the reformatted slices.
3. On the Properties pane, click the ellipsis on the right of the Label field and select a
predefined label, or type a custom label and press Enter.
MRAView 1.1 User Manual
39
Working With MRAView
4. Adjust other properties as necessary (see sections 5.5.1.2 and 5.5.1.3). You can also
position the overlay graphics with the mouse, or modify the size using the circular grip
handles. The currently displayed slice in the Stack view is updated for each change.
5. Click Finish on the Properties pane. The remaining slices for the Stack view are calculated.
5.5.1.2 Stack Reformat Interactive Graphics
When a stack reformat is active, you can manipulate the interactive graphics in several ways.
When the Pointing mouse cursor
viewport.
MRAView 1.1 User Manual
is visible, you can translate the volume on any double-oblique
40
Working With MRAView
You can adjust the size of each slice on the top view with the circular grip handles.
You can adjust the number of slices on the side view with the circular grip handles.
Using the scroll wheel in the Stack view in the lower-right viewport, you can scroll through the
current set of slices. The position of the slice is indicated by the yellow lines and indices in the two
side-view double-oblique views.
MRAView 1.1 User Manual
41
Working With MRAView
5.5.1.3 Stack Reformat Properties
You can edit the properties of a stack reformat while creating it, or afterward by right-clicking on
the stack reformat on the Results pane and selecting Edit.
Label:
The text label for this reformat. Click the ellipsis to choose from a
list of predefined labels, or type a custom label.
Method:
The method (Stack) used to generate this reformat. This cannot be
changed.
Projection method:
The projection method (Maximum Intensity (default), Minimum
Intensity, or Average Intensity) for this reformat.
Rows x Columns:
The number of voxel rows and columns for each slice of the
reformat. If Enable square field of view is checked, the format is
restricted to square slices.
Field of View (mm):
Physical size of each slice.
Slice count:
Number of slices.
Slice thickness (mm):
Physical thickness of each slice. The projection method is
performed over this thickness.
Slice gap (mm):
Physical distance between slices. A negative value results in overlap
between the slices.
Resize mode:
The property that changes when you move the circular grip handles
of the stack.
Enable square field of view:
When checked (default) the field of view is forced to be square. To
improve compatibility with other applications, images saved with a
non-square field of view are padded to produce a square image.
MRAView 1.1 User Manual
42
Working With MRAView
Show graphics:
When checked shows the graphics overlay in the Image View.
Apply to all time points:
When checked the reformat is applied for all time points.
5.5.1.4 Editing Stack Reformats
You can modify the properties of a stack reformat after creating it.
To edit a stack reformat
1. Right-click on the stack reformat on the Results pane and select Edit.
2. Modify the properties on the Properties pane as needed.
Or,
Click and drag the interactive graphics on the double-oblique view.
3. Click Finish on the Properties pane. The remaining slices for the Stack view are calculated.
5.5.1.5 Deleting Stack Reformats
You can delete any stack reformat that was created.
To delete a stack reformat
1. Select the stack reformat in the Reformats list on the Results pane.
2. Press Delete on your keyboard or right-click and select Remove.
This deletes the stack reformat.
5.5.2 Radial Reformatting
A radial reformat is a radial sampling of the existing volume at the translation, rotation and zoom
currently displayed in the double-oblique view. The sampling is stored as a series of radially spaced
slices. The sample spacing is defined as a property of the reformat.
MRAView 1.1 User Manual
43
Working With MRAView
You can change the default properties by selecting
and Options > Results > Radial reformat.
Radial reformats can be exported in DICOM format or as a video in AVI format, but neither can be
reopened in MRAView. Videos must be opened with a compatible viewer.
5.5.2.1 Creating Radial Reformats
You may want to orient the volume before performing a radial reformat. Radial reformats are listed
on the Results pane.
To create a radial reformat
1. Click
in the toolbar, or select
and Calipers > Reformat-Radial in the menu.
2. Click in the viewport where you want to view the radial spoke pattern.
Overlay graphics appear that indicate the initial geometry of the reformat.
The lower-right viewport switches to the Stack view and shows the reformatted slices.
3. On the Properties pane, click the ellipsis on the right of the Label field and select a
predefined label, or type a custom label and press Enter.
MRAView 1.1 User Manual
44
Working With MRAView
4. Adjust other properties as necessary (see sections 5.5.2.2 and 5.5.2.3). You can also
position the overlay graphics with the mouse, or modify the size using the circular grip
handles. The currently displayed slice in the Stack view is updated for each change.
5. Click Finish on the Properties pane. The remaining slices for the Stack view are calculated.
5.5.2.2 Radial Reformat Interactive Graphics
When a radial reformat is active, you can manipulate the interactive graphics in several ways.
When the Pointing mouse cursor
viewport.
is visible, you can translate the volume on any double-oblique
You can adjust the size of a slice with the circular grip handles.
MRAView 1.1 User Manual
45
Working With MRAView
Using the scroll wheel in the radial double-oblique view or the Stack view in the lower-right
viewport, you can scroll through the current set of slices. The position of the slice is indicated by
the yellow line and index in the radial double-oblique view.
5.5.2.3 Radial Reformat Properties
You can edit the properties of a radial reformat while creating it, or afterward by right-clicking on
the radial reformat on the Results pane and selecting Edit.
Label:
The text label for this reformat. Click the ellipsis to choose from a
list of predefined labels, or type a custom label.
Method:
The method (Radial) used to generate this reformat. This cannot be
changed.
Projection method:
The projection method (Maximum Intensity (default), Minimum
Intensity, or Average Intensity) for this reformat.
MRAView 1.1 User Manual
46
Working With MRAView
Rows x Columns:
The number of voxel rows and columns for each slice of the
reformat. If Enable square field of view is checked, the format is
restricted to square slices.
Field of View (mm):
Physical size of each slice.
Slice count:
Number of slices. The slices are always equally spaced over 360°.
Slice thickness (mm):
Physical thickness of each slice. The projection method is
performed over this thickness.
Enable square field of view:
When checked (default) the field of view is forced to be square. To
improve compatibility with other applications, images saved with a
non-square field of view are padded to produce a square image.
Show graphics:
When checked shows the graphics overlay in the Image View.
Apply to all time points:
When checked the radial reformat is applied for all time points.
5.5.2.4 Editing Radial Reformats
You can modify the properties of a radial reformat after creating it.
To edit a radial reformat
1. Right-click on the radial reformat on the Results pane and select Edit.
2. Modify the properties on the Properties pane as needed.
Or,
Click and drag the interactive graphics on the double-oblique view.
3. Click Finish on the Properties pane. The remaining slices for the Stack view are calculated.
5.5.2.5 Deleting Radial Reformats
You can delete any radial reformat that was created.
To delete a radial reformat
1. Select the radial reformat in the Reformats list on the Results pane.
2. Press Delete on your keyboard or right-click and select Remove.
This deletes the radial reformat.
5.6 Saving Results
You can save snapshots and reformats. This chapter covers saving those results to
MRAView 1.1 User Manual
47
Working With MRAView

file system, and

Enterprise Solution.
5.6.1 Saving Results to File System
You can save snapshots and reformats to a location on your system or network. For snapshots, the
file formats that you can choose from are BMP, DICOM, JPEG, and PNG. For reformats, the file
formats that you can choose from are DICOM and AVI.
To save a snapshot to the file system
1. On the Results pane, right-click on a snapshot and select Export to….
This opens the Export file dialog.
2. Select the location where you want to save the snapshot.
3. Type a name for the file in the File name field.
4. Select the file type (BMP, DICOM, JPEG, or PNG) from the Save as type drop-down list.
5. Click Save.
You can change the default location to which the files are saved by selecting
choose Options > General > Export path.
and
To save a reformat to the file system
1. On the Results pane, right-click on a reformat and select Export to….
This opens the Export file dialog.
2. Select the location where you want to save the reformat.
3. Type a base name for the files in the File name field.
For DICOM file type, this is a base name to which is appended a number per DICOM file.
4. Select the file type from the Save as type drop-down list.



DICOM:
The volume is saved as DICOM.
AVI - stack:
Exports all the reformatted slices in the active time point.
AVI - time resolved: Exports the center slice from all time points.
5. Click Save.
You can change the default location to which the files are saved by selecting
and
choose Options > General > Export path. You can also select whether to create a subfolder
automatically.
MRAView 1.1 User Manual
48
Working With MRAView
5.6.2 Saving Results to Enterprise Solution
If your system is configured to work with Enterprise Solution, you can save snapshots and reformats
to Enterprise Solution. Snapshots will be included in the results section of the current study;
reformats will be included as new series in the current study.
You can change the title, address and port number by selecting
and choose Options >
General and entering new values under Remote DICOM Node Settings (Store SCP). Click Test to
verify that your settings are configured correctly.
To save a snapshot or reformat to Enterprise Solution

On the Results pane, right-click on a snapshot or reformat and select Save.
To save all snapshots or all reformats to Enterprise Solution

On the Results pane, right-click on the Snapshots group or the Reformats group and select
Save.
5.6.3 Finishing and saving the session
When you have finished with MRAView, press the save session button on the Medis Suite if you
choose to Save any results.
For a detailed description on stopping a Medis Suite session, refer to the Medis Suite Quick
Start/User Manual.
MRAView 1.1 User Manual
49
Working With MRAView
6
Audit Trailing
Audit trailing is used to log a number of user activities in MRAView, such as starting or closing
MRAView, and exporting data.
Audit trailing is usually implemented in an organization as part of a set of measures that need to
ensure the security and privacy of patient and study data. These measures may be required in order
for your organization to comply with a national standard such as the Health Insurance Portability
and Accountability Act (HIPAA), or to comply with the requirements of the organizations for which
it works.
If audit trailing has been implemented in your organization, MRAView logs audit trail messages
either on your system or on a system in your network.
For instructions on configuring audit trailing or changing the configuration, refer to the CMS Audit
Manager User Manual. CMS Audit Manager is one of the Medis System Tools.
This chapter explains how you can view audit trails, also referred to as log files.
6.1 Viewing Audit Trails
You can view audit trails if they are stored on a system for which you have system administrator
rights.
To view an audit trail
1. Log on to the system with system administrator rights.
2. From the Start menu, select (All) Programs > Medis System Tools > CMS Audit Manager
1.2.
3. In the CMS Audit Manager, look up the location of the audit trail in the Audit trail logging
box, under Enable logging of audit trail messages.
4. In the file system, browse to the specified location.
You can open the log files with a text editor.
MRAView 1.1 User Manual
50
Troubleshooting
7
Troubleshooting
Floating license error after a crash of the software
In a floating license setup, licenses will be returned to the license server when MRAView is
closed. In case of an MRAView software crash, the licenses will not be returned and remain
locked on the license server. Restarting MRAView will give a warning that the licenses are
not available.
To solve this issue, you have to wait at most 2 minutes before you can start the software
again. The license server checks every 2 minutes if the claimed licenses are still in use on
the client machine. If the licenses are not in use, the license server will release the
licenses.
Expiration date not updated after installing non-expiring license
When you install a temporal license with CMS License Manager the license will be given an
expiration date. You can see this expiration date in View available licenses… in CMS
License Manager. When you install a non-expiring license after you installed the temporal
license the expiration date is not updated.
To see the correct expiration date of your licenses, you have to delete the expiring license
before you install the non-expiring license. You can do this with the following steps:
•
•
•
•
•
•
•
•
•
•
•
•
Start CMS License Manager (click Start > All Programs > Medis System Tools > CMS
License Manager 2.5)
Click Advanced…
Click Delete licenses…
Select all the expiring licenses
Click Delete
Click Close
Click Close
Click Install an additional license…
Browse to the license file with the non-expiring license
Make sure all licenses are selected
Click Install
Click Close
You are now able to see the licenses with their correct expiration date in View available
licenses…
MIP and 3DVR images are black
Some graphics adapters exhibit incompatibility with MRAView by not displaying the MIP,
3DVR and LUT thumbnail images. (If only the 3DVR and LUT thumbnails are black, see
below.) In many cases, this is also accompanied by errors related to VTK in CMS Monitor.
This may be resolved by having the system administrator update the graphics adapter
driver. Otherwise, operation of MRAView using only the double oblique views (DOV) is still
possible by disabling the option in
hardware rendering.
MRAView 1.0 User Manual
> Options > Hangings > DoubleOblique > Enable
51
Troubleshooting
3DVR image is black
Some graphics adapters exhibit incompatibility with MRAView by not displaying the 3DVR
and LUT thumbnail images, although the MIP is displayed. In many cases this can be
resolved by disabling the option in
hardware shading.
> Options > Hangings > DoubleOblique > Enable
“Hardware rendering disabled” is displayed on the MIP/3DVR view
If the option in
> Options > Hangings > DoubleOblique > Enable hardware rendering
is unchecked, the MIP, 3DVR and LUT thumbnails will not be generated.
Custom LUT is not saved as expected
It may appear that your custom LUT is not saved as expected, particularly if you move the
first or last point in the LUT; however, note that this is intended behavior. The LUT is
displayed in the LUT Editor based on the Window and Level settings defined in the data
set.
Menu commands or toolbar buttons are disabled
Menu commands or toolbar buttons may be grayed out when you are performing a
procedure, such as a radial reformat. You can make them active again by canceling or
finishing the procedure.
Window width and level are not applied
Different window width and level values are maintained for the double-oblique view, MIP
view and 3DVR view.
Annotation or measurement is not visible
When you navigate to another location in the volume, your annotation or measurement may
not be displayed on the double-oblique viewport. This is because the point to which the
result refers does not lie on the currently visible slice. To see your result again, right-click
on the result on the Results pane and select Locate; or double click on the result on the
Results pane.
The mouse cursor inside a sculpture contour will not change to the eraser or fill icon
A small contour area may not provide enough distance from the edge of the contour area to
enable the eraser or fill cursor icon. In this case, move the cursor outside the contour until
the desired mouse cursor appears, press the SHIFT key, and then click the mouse button.
Pressing the SHIFT key before the click performs the selected action on the opposite region,
inside instead of outside or outside instead of inside.
Your issue was not resolved in this troubleshooting section
You may find it useful to run the CMS Monitor diagnostic tool (click Start > All Programs >
Medis System Tools > CMS Monitor 3.5) and view the messages displayed. If the logged
messages do not resolve your problem, click on the Send button in CMS Monitor to send
relevant information to the Medis help desk. Additional contact information can be found
by clicking Help > About…
MRAView 1.1 User Manual
52
Reference
8
Shortcut Keys
When you are working with MRAView, you can use several combinations of keys on your keyboard
and mouse actions to quickly perform the following tasks.
Press
To
General
F1
Access the user manual
CTRL+G
Open the Medis website
CTRL+X
Close MRAView
Alt+F4
Close MRAView
Layout
F6
Reset toolbar and workspace window pane layout
F10
Expand the currently selected viewport.
SPACE
Toggle among MIP, 3DVR and Stack view, with the lower-right
viewport selected.
BACKSPACE
Toggle in reverse order among MIP, 3DVR and Stack view, with the
lower-right viewport selected.
F11
Show or hide the workspace window panes
Results
D
Create a distance measurement
A
Create an area measurement
MRAView 1.0 User Manual
53
Reference
Press
To
S
Create a snapshot
Esc
Stop editing the result
Delete
Delete the currently selected result
SHIFT+Delete
Delete all results
Navigation Controls
Wheel
Stacking
SHIFT+ALT+click and drag
Stacking
CTRL+Wheel
Zooming
SHIFT+CTRL+click and drag
Zooming
CTRL+click and drag
Panning
Middle-click and drag
Panning
ALT+click and drag
Swivel (double oblique) or rotate (MIP, 3DVR)
Right-click and drag
Window width and level
Viewing Controls
1
Reset the window width and level
CTRL+K
Show or hide the axes
ALT+right-click
Hide the overlay graphics
Arrow left
Display the previous time point
MRAView 1.1 User Manual
54
Reference
Press
To
Arrow right
Display the next time point
MRAView 1.1 User Manual
55