GE M
EDICAL
S
YSTEMS
D
IRECTION
FC091194, R
EVISION
02
V
IVID
7 / V
IVID
7 PRO S
ERVICE
M
ANUAL
Chapter 4 - Functional Checks
4 - 21
4-3-4-5
Check Gain, TGC and Depth
Table 4-8
2D Mode: Check Gain, TGC and Depth in 2D Mode
Step
Task
Expected Result
1.
Adjust
TISSUE GAIN
Increases the overall gain equally for all depth when
rotated clockwise
2.
Adjust Time Gain Compensation (TGC)
Compensates for depth-related attenuation in an
image.
The upper sliders affect the near field.
The lower sliders (nearest the operator) affect the far
field.
3.
Adjust Depth
Sets the maximum (far field) distance that will be
imaged.
Decreasing the depth may allow higher frame rates
TISSUE GAIN
TGC
DEPTH