GE Vivid 7 User Manual

							Cardiac Measurement and Analysis
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Post-measurement assignment labels
Each type of measurement, within each mode, can be 
associated with a set of pre-defined parameter labels. 
Parameter labels can be assigned to the highlighted 
measurement by the user.
To assign a parameter label to a measure-
ment:
1. Trackball to the actual measurement in the Measurement 
result table (see Figure 6-5).
The selection of a 
measurement with-
out pre-defined la-
bels will not display 
the Parameter la-
bel menu.2. Press SELECT.
A Parameter label menu is displayed.
3. Trackball through the Parameter label menu to highlight the 
required label.
4. Press 
SELECT to assign the highlighted parameter label to 
the measurement.
The assigned measurements may be reviewed in the 
Worksheet (see page 230). Up to five assigned measurements 
with the same label can be stored in the patient archive.
CAUTIONOnly assigned measurements will be saved. Measurements 
without assignment will be lost when scanning is resumed. 
						

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 Figure 6-5: Measurement assignment
1. Parameter Label menu
2. Selected label
Assignment
3. Assigned 
measurement 
						

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Controlling the Measurement result table 
display
The display of the Measurement result table can be minimized 
and moved to prevent the table obscuring parts of the 
ultrasound image.
Minimizing the Measurement result 
table
1. Trackball to the symbol   on the heading of the 
Measurement result table (see Figure 6-6).
2. Press 
SELECT.
Repeat step 1 to en-
large the Measure-
ment result table.The Measurement result table is minimized to the heading 
bar.
Moving the Measurement result table
Alternative: Rotate 
the assignable  
RESULT WINDOW to 
move the Measure-
ment result table 
from corner to cor-
ner on the Acquisi-
tion window.
1. Trackball to the symbol   on the heading of the 
Measurement result table (see Figure 6-6).
2. Press 
SELECT to grab the table.
3. Trackball the Measurement result table to a new position.
4. Press 
SELECT to anchor the table.
 Figure 6-6: Measurement result table display tools
1. Minimize/maximize 
table
2. Move table 
						

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Worksheet
The worksheet function enables the user to review, edit, delete 
or print data independently of a report. All measurements and 
calculations taken during the examination can be viewed at any 
time using the worksheet.
Over view
 Figure 6-7: The Worksheet screen
Using Worksheet
1. Press WORKSHEET on the control panel and select the 
1. Measurement type
2. Measurement parameter 
3. Value: Averaging, Max, Min or Last4. Measured / calculated values
5. Value type
6. Measurement type selection 
						

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measurement type (see Figure 6-7).
To scroll through pages
1. Select PAGE DOWN or PAGE UP.
To select the type of value
1. Trackball to the relevant cell in the Method column.
2. Press 
SELECT.
A pop-up menu is displayed showing the different options 
available (Figure 6-8).
 Figure 6-8: The Calculation method options list.
3. Trackball to the required option.
4. Press 
SELECT.
The value is updated accordingly.
Excluding or including measurements
One or more measurement values from a set of measurements 
for a parameter can be excluded when doing average 
calculation.
To exclude a measurement
1. Trackball to the measurement value to exclude.
2. Press 
UPDATE MENU.
The Worksheet menu is displayed.
When excluded the 
measurement dis-
play turns grey.3. Trackball to Exclude Value.
4. Press 
SELECT.
To include a measurement
1. Trackball to the measurement value to include.
2. Press 
UPDATE MENU.
The Worksheet menu is displayed.
1. Average of the 
measurements taken
2. Maximum measurement
3. Minimum measurement.
4. Last measurement that was 
taken 
						

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3. Trackball to Include Value.
4. Press 
SELECT.
Manually changing a value
Individual measured values can be manually changed using 
the alphanumeric keyboard.
To manually change a value
1. Trackball to the value that is to be changed.
2. Press 
SELECT.
An asterisk indi-
cates that the value 
has been manually 
altered. The calcula-
tion type is changed 
to Edit.3. Use the alphanumeric keyboard to enter the required value.
To restore automatic calculation
1. Trackball to the relevant cell in the Method column.
2. Press 
SELECT.
A pop-up menu is displayed showing the different 
calculation options available (Figure 6-8).
3. Press 
SELECT.
The value is re-calculated according the method selected.
Deleting measurement parameter
1. Trackball to the measurement parameter to delete.
2. Press 
UPDATE MENU.
The Worksheet menu is displayed.
3. Trackball to Delete Value.
4. Press 
SELECT. 
						

							Quantitative Analysis
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Chapter 7 
Quantitative Analysis
This chapter includes the following information:
• Introduction  ................................................................................... ..  235
• Accessing the Quantitative analysis package  ........................... ..  236
• Quantitative Analysis window  ..................................................... ..  237• Overview  .................................................................................. 237
• Generation of a trace  .................................................................... ..  244 • About the sample area  ............................................................. 244
• To generate a trace  .................................................................. 244
• Manual tracking of the sample area (dynamic anchored sample 
area) ...........................................................................................  245
• Zooming in the Analysis window  .............................................. 246
• Deletion of a trace  ......................................................................... ..  247
• To delete all traces  ................................................................... 247
• To delete one specific trace  ..................................................... 247
• Frame disabling  ............................................................................ ..  248
• Disabling frames from the frame marker  .................................. 248
• Disabling frames in the cineloop windows  ............................... 248
• Re-enabling all frames  ............................................................. 249
• Optimizing sample area ................................................................ ..  250 • Reshaping a sample area  ........................................................ 250
• Labelling a sample area  ........................................................... 251
• Optimizing the trace display  ........................................................ ..  252 • Optimizing the Y-axis  ............................................................... 252
• Trace smoothing  ...................................................................... 253
• Switching modes or traces  .......................................................... ..  255 • To switch mode  ........................................................................ 255
• To switch trace  ......................................................................... 255
• Curve fitting analysis .................................................................... ..  256 
						

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• Anatomical M-Mode ...................................................................... ...  265
• Introduction  ............................................................................... 265
• Using Anatomical M-Mode ........................................................ 265 
						

							Quantitative Analysis
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Introduction
The quantitative analysis software package is designed for 
analysis of TVI, Tissue Tracking, Strain, Strain rate and 
Contrast related raw data.
The main features of these options are:
For TVI:
•  Multiple Time -motion trace display from selected points in 
the myocardium.
•  Arbitrary Curved anatomical M-Mode
For Tissue Tracking:
•  Multiple tissue displacement trace display from selected 
segments in the myocardium.
•  Arbitrary Curved anatomical M-Mode
For Strain rate:
•  Multiple Strain rate (Rate of deformation (s-1)) trace display 
from selected segments in the myocardium.
•  Arbitrary Curved anatomical M-Mode
For Str ain:
•  Multiple Strain (extend of tissue deformation (%)) trace 
display from selected segments in the myocardium.
•  Arbitrary Curved anatomical M-Mode
For Contrast:
•  Time-Intensity analysis from multiple region of interest
• Curve fitting
•  Arbitrary Curved anatomical M-Mode
If not otherwise specified, the topics described in this chapter 
are applicable for both TVI and contrast data. 
						

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Accessing the Quantitative analysis package
In replay mode:
1. Open an examination and recall a TVI or contrast loop.
2. Press the assignable 
Q ANALYSIS.
The Quantitative Analysis screen is displayed (see 
Figure 7-1).
In live
1. Press FREEZE.
Note: if in 2D mode outside a contrast application, press 
ALT and MORE assignable.
2. Press the assignable 
Q ANALYSIS.
The Quantitative Analysis screen is displayed (see 
Figure 7-1).