5-116 Image Optimization
Press <Set> and roll the trackball along the boundary to add the trace points gradually,
after trace is finished, press <Set> twice to finish tracing.
NOTE: at least 6 points should be determined by you before the system generates
automated trace. Press <Set> to make the traces on the image clockwise or anticlockwise.
Short axis section (PSAX B, PSAX M, PSAX AP): only manual tracing is available.
Retracing
If current trace is not satisfactory, tap [Reload] on the touch screen to clear the trace and to start another
tracing.
During the tracing drawing, press <Clear> to clear already traced drawing.
Make fine adjustment to the trace
You can make fine adjustments to the trace after it is completed;
1. Under tracing curve adjusting status, the cursor turns into
.
2. Move the cursor to the editable point, press <Set>;
3. Roll the trackball to drag the curve to desired position, press <Set> again to set the point to the
new position;
4. Repeat step 2 to finish all points that need adjustment.
NOTE: under tracking status, tap [Edit] on the touch screen to enter the status.
5.16.5 Basic Operations of TTQA
Switch among the operation controls
[Start Tracking]: tap to start tracking.
[Accept & Compute]: tap to start calculation and display the curve.
[Exit]: tap to exit tissue tracking.
[Parameter]: rotate to select the curve type.
[Bull’s Eye]: tap to turn on/off bull’s eye and peak data table.
[Auto Play]: change the speed of the play.
View Selection
Before tracing, tap the corresponding keys to select for the view.
