GE
D
IRECTION
FQ091019, R
EVISION
2
V
IVID Q
N S
ERVICE
M
ANUAL
Chapter 4 - General Procedures and Functional Checks
4-33
4-4-1-3
Adjust the 2D Mode Controls
1.) Press
2D
on the Operator Panel to access 2D mode.
2.) The following Image Controls are used to optimize the 2D picture.
Verify that all the listed controls are working as intended:
-
Use
Gain
and
TGC
controls to optimize the overall image together with the
Power
control.
-
Use
Depth
to adjust the range to be imaged.
-
Use
Focus
to center the focal point(s) around the region of interest.
-
Use
Frequency
(move to higher frequencies) or
Frame rate
(move to lower frame rate) to
increase resolution in image.
-
Use
Frequency
(move to lower frequency) to increase penetration.
-
Use the
Reject
control to reduce noise in the image.
-
Use the
DDP
control to optimize imaging in the blood flow regions and make a cleaner, less
noisy image.
-
Use
UD Clarity
(Cardiac) or
UD Speckle reduce
(non-cardiac) to reduce image speckle.
Extra care must be taken to select the optimal Speckle reduction level, as too much filtering
of speckle can mask or obscure desired image detail.
-
Use
Adaptive reject
(Cardiac) to reduce near field haze and blood pol artifact without diluting
tissue appearance of moving structures.
4-4-2
M Mode Checks
WARNING
WARNING
Always use the minimum power required to obtain acceptable images in accordance
with applicable guidelines and policies.
Figure 4-11 M- Mode Screen Example
