P11
Portable Digital Color Doppler Ultrasound System
7.3.10 B Reject
B REJECT
Sets the display priorities of the color and 2D grayscale pixels. Larger B Reject value
suppresses more grayscale pixels.
• go to the context menu, highlight B REJECT.
• use the
LEFT/RIGHT
keys to adjust the B Reject value.
7.3.11 DPI Frequency
FREQUENCY
Similar to the CDI frequency, higher DPI frequency delivers better display of low flow
velocities, but the penetration depth is reduced. Lower DPI frequency delivers better display
of high flow velocities, but the penetration depth is increased.
• highlight FREQUENCY at the DPI menu.
• use the
LEFT/RIGHT
keys to adjust the frequency value.
Remark:
•
The DPI frequency value is displayed on the screen at the Color Image
Info area (FRQ).
7.3.12 Image Orientation (Left/Right)
LT↔RT
Refer to Section 5.3.16.
7.3.13 Line Density
LINE DENSITY
This function, similar to the Line Density in CDI mode, adjusts the line density in displaying
the flow in the DPI sample box. Line density can be set to Low or High.
• go to the context menu (Figure 7.2), highlight LINE DENSITY.
• use the
LEFT/RIGHT
keys to the adjust line the density setting.
7.4 Cine Mode Operation
Press the
FREEZE
key during the real time DPI scan to freeze the image and
start the cine mode. Recent image frames are cached and ready for review.
The cine mode operation is independent of the display format (single, dual, quad).
Caution!
All measurements performed in the real time mode will be cleared upon
pressing the
FREEZE
key.
7-5
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