Mindray DC-80A, Руководство оператора

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5-104 Image Optimization
GS
Global strain.
GS_rate Global strain rate.
The system also displays the TPSD value on the Bull’s Eye graph:
Time to Peak Standard Deviation (TPSD):
Where the standardized value of time to peak data: (N is the number of time to peak
data) Average standardized value of time to peak data:
4 - Display curve: Velocity/Displacement/Strain/Strain Rate. Each curve on the image is matched with a
certain segment in the cardiac segmentation model (6), identified by different colors.
Velocity curve
The X-axis represents time (s);
The Y-axis represents velocity (cm/s).
Displacement curve
The X-axis represents time (s);
The Y-axis represents displacement (mm).
Strain curve
The X-axis represents time (s);
The Y-axis represents deformation of the tissue (%).
Strain-rate curve
The X-axis represents time (s);
The Y-axis represents strain by time (s
-1
).
5 - Displays the corresponding time of AVO (aortic valve open)/AVC (aortic valve close)/MVO (mitral
valve open)/MVC (mitral valve close).
6 - Displays the cardiac segmentation model. Each segment name is illustrated beneath the model.

In the figure, marks the peak position of the curve.

Click on a segment in the cardiac segmentation model. The segment turns gray and its
corresponding curve no longer displays.

You can get the current X/Y-axis value by moving the cursor onto one point on the curve. If you
press <Set> now, the frame marker will move to that spot.

If the segment is filled with “XXX”, it means that this segment is not well tracked.
5.15.3 Select Image and Cardiac Cycle
You can select images with a better image quality to get a better analysis result.

Switch cine files
1. Press <Review> on the control panel to enter review status
2. Double-click the target file
3. The system closes the currently displayed file and switches to the newly selected file.

Switch cardiac cycles within the cine file
1. After a cine file with more than one cycle is opened, the system displays a thumbnail of each
cardiac cycle on the thumbnail area.
2. Press <Cursor> to acquire the cursor. Roll the trackball to position the cursor over the desired
image.
3. Double-click the file, the system will switch to the selected cycle.
Or rotate the knob under the [Cycle] item on the touch screen to select directly.