Doppler Mode Checks - GE Vivid 7 Service Manual

GE H
EALTHCARE
D FC091194, R
IRECTION EVISION
4-3-9

Doppler Mode Checks

4-3-9-1 Introduction
Doppler is used to measure velocity (most often in blood).
Doppler mode can be done with a special pencil probe or with an ordinary probe. By using an ordinary
probe, you can first bring up a 2D picture for navigation purpose and then add Doppler.
4-3-9-2 Preparations
Use a phantom when doing these tests.
1.) Connect one of the probes, to the scanner's left-most probe connector.
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2.) Turn ON the scanner
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The 2D Mode window is displayed (default mode).
3.) If needed, adjust the Display's Brightness and Contrast setting.
4.) Press PW or CW to start Pulsed Wave Doppler (PW) or Continuous Wave Doppler (CW).
5.) Use the trackball to select the Area of Interest (Sample Volume) in PW or direction of interest in CW.
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See Probe Connection, page
See Section 9-26 "Probes" on page 9-80
See 4-2-2 - Power ON/ Boot UP
Chapter 4 - Functional Checks
3-21 for info about connecting the probes
for available probes
on page 4-3 for info about booting the scanner.
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