6 Acquiring Images
62
Basic User Manual
0
5
10
15
9
-9
cm/s
8 6
2 5 5
1 /5 0
7 0
2 .2
2D Imaging
Color Flow ROI
1.0
PRF
FPS
GN
PWR
FRQ
PWR
FRQ
GN
WF
D/G
I/P
D
C/P
C Map/DPDI
WF
Line Density
Sec.Width
Sec.Pos
Power%
B Reject
Frequency
S
Figure 6-7 TDI-Mode Imaging Screen
3.
Adjust color flow ROI.
−
Move the trackball to position color flow ROI.
−
Select the
Set
key to adjust the size of color flow ROI.
−
Select the
Set
key to reposition color flow ROI.
4. Optimize the TDI-mode image. For details, refer to Section 6.3.4 Optimizing C/PDI/TDI Mode Images.
5. Select the
TDI
key again to exit the screen.
6�3�4
Optimizing C/PDI/TDI Mode Images
After entering the C/PDI/TDI-mode, the imaging parameters display at the bottom of the LCD monitor as shown in
Figure 6-6, you can use them to optimize C/PDI/TDI-mode images.
You can adjust other parameters and display modes on the pop-up menu by selecting the
Menu
key.
NOTE:
You can adjust all parameters in the real time C/PDI/TDI mode, but can only adjust
Baseline
,
C Map
and
B
Reject
in the frozen C/PDI/TDI mode.
■
Gain
Color flow gain optimizes the color flow continuity with less noise interference.
To adjust the gain:
●
Rotate the
C
knob clockwise to increase the gain value in the C/PDI/TDI mode.
●
Rotate the
C
knob anticlockwise to decrease the gain value in the C/PDI/TDI mode.
■
Frequency
Frequency optimizes the penetrability and the sensitivity of the color flow.
To adjust the frequency:
1. Select
Frequency
by pressing the corresponding function key.
2. Rotate it to adjust the value.
■
Wall Filter
Wall filter is used to filter the low frequency noise from tissues, such as the vascular wall.
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