Image Optimization 5-113
each spot and calculate the movement, so as to determine myocardial motion in a more quantitative
way.
Tissue tracking quantitative analysis is an option.
NOTE: Only use the following probes matched with corresponding exam modes to start Tissue Tracking
QA function. Only the probes support stress echo function under the cardiac mode.
5.16.1 Basic Procedures for Tissue Tracking QA
1. Open a saved B mode cardiac cine file (a cin. format file which contains more than 1 cardiac cycle
(with 2 R waves) and ECG signal).
2. Press <Cursor> to show the cursor and click [Tissue Tracking QA] on the menu in the top-left corner of
the screen to activate the function:
a) You can determine the image of interest by previewing the image
b) To find the image of interest, click [Cycle] on the soft menu to select.
3. Select the corresponding section name on the soft menu and locate one frame image with good image
effect by cine play. Use the cursor to set the reference point:
a)
Long axis section: use the “3-point” method or “Manual” method to set
b) Short axis section: enter multiple points (at least 6 points) using the cursor manually to set.
4. After reference points are set, the system will display the boundary of the endocardium and epicardium.
Adjust the thickness if necessary.
If the traced result is poor, click [Reload] on the soft menu to re-trace the reference points, or make fine
adjustments to the points using the cursor.
If the cycles are not adequate to provide the information, switch to another cycle to trace.
5. Click [Start Tracking] on the soft menu to start the tracking function. Adjust the parameters if
necessary.
Click [Edit] on the soft menu to display the cursor. Roll the trackball and press <Set> to re-select the
trace reference points (inner dots of the curve). Move the cursor to the exact boundary position and
press <Set> again to set the right place. Click [Start Tracking] to start tracking again.
6. Click [Accept & Compute] on the soft menu to calculate and display the curve. Adjust the parameters if
necessary.
7.
Click [Bull’s Eye] on the soft menu to see the result.
8. Click [Data Export] on the soft menu to export analyzed data.
9. Click [Exit] on the soft menu.
