1 On a frozen Doppler spectral trace, tap
Manual
Trace
If this control is hidden, tapping
A single caliper appears.
2 Drag the caliper to the beginning of the desired waveform.
After lifting your finger from the screen, a pencil icon appears, indicating that the start location is
set and you can begin your trace.
3 Drag the caliper to trace the waveform.
To make a correction, trace backward on the dotted line.
4 To complete the measurement, remove your finger from the screen.
The trace closes automatically and the measurement results appear.
Note:
Even after completing the trace, you can still adjust the measurement by dragging
the cursor. Drag the cursor backward to erase your trace or forward to extend it.
5 To save the measurement, tap
Exam-based calculations
Abdominal calculations
To calculate volume flow
The volume flow calculation has been updated.
1 On a frozen 2D or Doppler trace, tap Calcs.
Calcs
If this control is hidden, tapping
2 On the calculation list, tap Volume Flow.
Steps 3 and 4 can be done in either order.
3 Measure blood vessel diameter:
a On a frozen 2D image, on the Volume Flow menu, tap Diam.
b Position the calipers by dragging.
c Tap
to save the measurement.
4 Calculate the blood velocity.
Manual Trace
.
More Controls
displays it.
.
More Controls
displays it.
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