GE MEDICAL SYSTEMS 
D
IRECTION 2392751-100, REVISION 3VIVID™ 4 SERVICE MANUAL
4-16 Section 4-4 - Image Testing: 2D/M/CFM/Doppler
4-4-1-9 PW Operation Test
Table 4-26    PW Operation Tests (3S)
Step Task Expected Result(s)
1
Select a Cardiac preset and set the 2D Gain 
to 40.
2
Activate PW Mode and set the following PW 
parameters:
• Gain: 70
• SV: 3mm
PW Artifacts Test
3
Place the 3S probe on the RMI1425A 
Phantom (top view A).
4
Place the sample volume in the center of the 
vessel.
Ensure that the flow looks clear, the noise area is dark and that 
there are no flash strikes or other artifacts.
5
Move the sample volume to different locations 
along the vessel.
Ensure that the flow looks clear, the noise area is dark and that 
there are no flash strikes or other artifacts.
PW HPRF Artifacts Test
6
Increase the velocity range to MAX.
7
Place the 3S probe on the RMI1425A 
Phantom (top view A).
8
Place the sample volume in the center of the 
vessel.
Ensure that the flow looks clear, the noise area is dark and that 
there are no flash strikes or other artifacts.
9
Move the sample volume to different locations 
along the vessel.
Ensure that the flow looks clear, the noise area is dark and that 
there are no flash strikes or other artifacts.