GE Voluson E8 Service Manual page 163

GE H DRAFT
EALTHCARE
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4-4-8 Generic Measurements
4-4-8-4 Measurements in Spectral Doppler Mode
NOTE: The Spectral Doppler image is displayed based on time (X-axis) and velocity (Y-axis).
4-4-8-4-1 Auto Trace
1.) Press the CALIPER key.
2.) Touch AUTO TRACE on the Touch Panel. It traces the Spectral Doppler image automatically
3.) Select the SENSITIVITY of the envelope curve (to eliminate artifacts).
4.) Select the TRACE MODE channel of the envelope curve (upper, both, lower).
5.) If necessary, select the Angle and the Baseline.
6.) Press the right or left trackball key SET to finish the measurement.
Before you complete the measurement:
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NOTE: The determination of the envelope curve requires a clear and low-noise record of the Doppler
spectrum. Otherwise the reliability of the displayed measurement results may not be ensured!
4-4-8-4-2 Manual Trace
1.) Press the CALIPER key.
2.) Touch MANUAL TRACE on the Touch Panel. A cursor appears on the screen.
3.) Move the cursor with the TRACKBALL to the start point of the measurement and press SET
4.) Trace to the end of the period and press the SET key again to fix the mark.
Before you complete the measurement:
To readjust the traced line, press UNDO (upper trackball key) repeatedly.
4-4-8-4-3 Heart Rate
1.) Press the CALIPER key.
2.) Touch HR on the Touch Panel. A line appears on the screen.
3.) Move the line with the TRACKBALL to the start point of the period and press SET (right or left
4.) Move the second line to the end point of the period.
5.) Select the number of "HR cycles" for the measurement with the digipot below the Touch Panel.
6.) Press the SET (right or left trackball key) again to fix the line. The Heart Rate is displayed.
NOTE: For further measurements and other details refer to the Voluson E8 / Voluson E6 Basic User Manual.
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and displays the results (according to the Measure Setup).
To readjust the start cycle (vertical yellow line), press CHANGE (upper trackball key).
Press SET (right or left trackball key) to fix the line.
Press the CHANGE key again to readjust the end cycle (vertical green line).
Press SET to fix the line.
(right or left trackball key) to fix the marker.
The measurement results appear on the screen.
trackball key). A second line appears.
Chapter 4 - Functional Checks
23, 2012)
UGUST
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OLUSON OLUSON
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ERVICE ANUAL
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