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GE M
S
EDICAL
YSTEMS
D
2392751-100, R
IRECTION
4-4-4
739L Probe Image Quality Tests
4-4-4-1
2D Noise Uniformity Test
Table 4-33
Step
1
2
4-4-4-2
2D Performance Test
Table 4-34
Step
1
2
3
3
EVISION
2D Noise Uniformity Test (739L)
Task
With a 739L probe in the air, select the Carotid
preset from the Vascular preset options.
Set the following parameters:
•
2D Gain = Max
•
Depth = 2cm
•
Gain Sliders= Max
2D Performance Test (739L)
Task
Use the Standard Superficial Phantom
RMI404G.
Select the Carotid preset from the Vascular
preset options.
Set the following parameters:
•
Depth: 10cm
•
Frame Rate: 2 (single focus)
•
Focus Location: 6cm
Chapter 4 - Functional Checks
Expected Result(s)
Up to 5mm of white carpet noise should be displayed, as shown in
the left figure above. Ensure that there are no white lines along the
image (down to 2cm) or other artifacts like those shown in the
figure on the right, above.
Expected Result(s)
V
™ 4 S
M
IVID
ERVICE
ANUAL
4-21
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