GE Voluson 730Pro - Auto Trace; Heart Rate; Manual Trace; Measurements in Spectral Doppler Mode

GE MEDICAL SYSTEMS - KRETZTECHNIK RAFT VOLUSON® 730PRO / 730PROV (BT´04)
D
IRECTION KTI105947, REVISION 2 SERVICE MANUAL
4-24 Section 4-4 - Functional Checks
4-4-7 Generic Measurements (cont’d)
4-4-7-4 Measurements in Spectral Doppler Mode
NOTE: The Spectral Doppler image is displayed based on time (X-axis) and velocity (Y-axis).
4-4-7-4-1 Auto Trace
1.) Press the CALIPER
key.
2.) Select AUTO TRACE
item from the menu area on the left side of the screen.
It traces the Spectral Doppler image automatically and displays the results.
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:
- 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.
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!
4-4-7-4-2 Manual Trace
1.) Press the CALIPER
key.
2.) Select the MANUAL TRACE
item from the menu area. A cursor appears on the screen.
3.) Move the cursor with the TRACKBALL
to the start point of the measurement and press SET
(right or left trackball key) to fix the marker.
4.) Trace to the end of the period and press the SET
key again to fix the mark.
The measurement results appear on the screen.
Before you complete the measurement:
To readjust the traced line, press UNDO
(upper trackball key) repeatedly.
4-4-7-4-3 Heart Rate
1.) Press the CALIPER
key.
2.) Select the HR
item from the menu area. 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
trackball key). A second line appears.
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.
6.) Press the SET
(right or left trackball key) again to fix the line. The Heart Rate is displayed.
NOTE: For further Doppler Measuements and other details refer to the Voluson® 730Pro / 730ProV
Basic User Manual, Chapter 13