GE Vivid S6 - Page 282

Measurement and Analysis
264 Vivid S5/Vivid S6 User Manual
R2424458-100 Rev. 2
Automatic Doppler trace measurements
Adjust Compress
and reject controls
to optimize the
Doppler signal.
1. Generate the spectrum to be measured.
2. Press
FREEZE to stop the cineloop.
3. Press
MEASURE on the Control Panel.
Alternative: Press
CALIPER on the con-
trol panel and press
the AUTO TRACE as-
signable.
4. Select Auto Trace in the Measurement Menu.
A vertical green cursor is displayed on the spectrum.
5. Trackball the cursor to the starting point.
6. Press
SET to anchor the start point of the measurement.
7. Trackball to the end trace position.
8. Press
SET to anchor the end point of the trace.
The trace is automatically generated and the following
measurements are displayed in the Measurement result
table:
• Maximum and mean Velocities
• Maximum and mean pressures
• Env. Ti
• Velocity time integral (VTI)
9. Trackball the cursor to the next heart beat.
10. Press
SET to anchor the next heart beat starting point.
The heart rate (BPM) is displayed in the Measurement
result table.
MV E/A ratio
Adjust Compress
and reject controls
to optimize the
Doppler signal.
1. Generate the spectrum to be measured.
2. Press
FREEZE to stop the cineloop.
3. Press
MEASURE on the Control Panel.
Alternative: Press
CALIPER on the con-
trol panel and press
the
MV E/A RATIO as-
signable.
4. Select MV E/A ratio in the Measurement Menu.
5. Trackball the cursor to the peak of the E wave.
6. Press
SET to anchor the point.
7. Drag cursor to baseline to mark dT.
8. Press
SET on the trackball area to anchor the second point.
9. Trackball the cursor to the peak of A wave.
10. Press
SET to anchor the point.
the velocity at peak for E and A waves and the calculated
E/A ratio are displayed in the Measurement result table.