GE Vivid 7 User Manual

Stress Echo
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Chapter 4 
Stress Echo
This chapter includes the following information:
• Introduction  ................................................................................... ..  148
• Selection of a stress test protocol template  .............................. ..  149
• Image acquisition .......................................................................... ..  150
• Starting acquisition...

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Introduction
The Vivid 7/Vivid 7 PRO ultrasound unit provides an integrated 
stress echo package, with the ability to perform image 
acquisition, review, image optimization, and wall segment 
scoring and reporting for a complete, efficient stress echo 
examination.
The stress package provides protocol templates for exercise, 
as well as, pharmacological stress examinations. In addition to 
preset factory protocol templates, templates can be...

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Selection of a stress test protocol template
1. Press PROTOCOL to enter the stress echo mode.
The Protocol screen is displayed (see Figure 4-1) showing 
the default stress protocol for the current probe.
To create or edit a 
template see 
page 177.2. •To use the current template:
Turn freeze off to initiate scanning.
•To use another template:
Press the assignable 
TEMPLATE.
The template list is displayed.
3. Trackball to the desired template.
4....

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Image acquisition
Images are acquired in a pre-defined order, according to the 
selected template. The highlighted cell (green) of the matrix, 
displayed in the Clipboard window indicates which view is 
currently being acquired (see Figure 4-2). The names of both 
the view and the level for the current cell is displayed on the top 
corner of the image area and under the template matrix.
 Figure 4-2: The stress mode acquisition screen
1. Current...

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Star ting acquisition
To use the Timer, 
see page 154.1. Turn freeze off to initiate scanning.
2. Perform a scan that conforms with the view that is 
highlighted in the template matrix on the Clipboard window.
Smart Stress is 
turned on by de-
fault in factory tem-
plates. If the selected template has the option Smart Stress 
turned on (see page 180), a subset of the image 
acquisition settings for each view in the baseline level will 
be stored...

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 Figure 4-3: Display of the Reference loop during acquisition
Selecting a view during acquisition
A fixed protocol is provided for scanning, based on the selected 
template. The system automatically highlights the next view to 
be acquired in the template matrix, as images are stored. 
However, the order of scanning may be changed manually as 
follow:
Manual selection of a view during acquisition
1. Use the arrow keys on the alphanumeric keyboard...

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Replacing an acquired image
1. Use the arrow keys on the alphanumeric keyboard to 
highlight the cell that represents the view that is to be 
replaced.
The selected cell in the template matrix is highlighted in 
red, indicating non-default position.
2. Turn freeze off to initiate scanning.
3. Scan and save the selected loop as explained in the 
previous section.
After storage the system automatically highlights the next 
available view to be...

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Blood Pressure and hear t rate data
The blood pressure (systolic and diastolic) and heart rate can 
be manually entered during acquisition (or during Wall motion 
analysis).
1. Press  
MEASURE.
The Measurement menu is displayed.
2. Select Wall Motion.
The systolic and diastolic blood pressure and the heart 
rate for the active cell stress-level are displayed on the 
button over the scoring diagrams (see Figure 4-9, 
page 165). By pressing this...

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Continuous capture mode
Continuous capture mode enables the user to perform 
acquisition continuously for all views at any level depending on 
the selected template configuration. Continuous capture 
consists of temporary saving images acquired in a storage 
buffer. To enable best possible use of the limited storage buffer 
capacity, a Pause/Capture mode is provided, as opposed to the 
normal Freeze/Scan mode. The Pause mode enables scanning 
and...

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 Figure 4-5: The buffer bar in Continuous capture
Controlling the capture process
When entering a stress level with Continuous capture enabled, 
the unit is automatically set in Pause mode.
1. Press 
IMAGE SRORE or 2D FREEZE to start image capture.
“Capture” is displayed in the buffer bar, the gauge starts 
filling and the percentage of filled memory buffer increases 
(see Figure 4-5, page 156).
2. Press 
IMAGE SRORE or 2D FREEZE again to stop...