SSI-6000/SSI-5800/SSI-5500/SSI-5500BW
Digital Color Doppler Ultrasound System
7.3.5 DPI Gain
Properly adjust the DPI gain to ensure that the color flow is continuous
but no color speckle is present.
Turn the D GAIN knob clockwise / counterclockwise to increase / de-
crease the CDI gain.
Remarks:
• The DPI gain value is displayed on the screen at the Color Image Info area
(GN).
• It is possible to change the DPI Gain only when the DPI mode is active.
7.3.6 Persistence
PERSIST
Similar to the persistence in the B mode, adjust the persistence value to enhance
the smoothness of the DPI image.
• go to the DPI menu (Figure 7.2), highlight PERSIST.
• use the LEFT/RIGHT keys to decrease/increase persistence value.
Remark:
• The persistence value is displayed on the screen at the Color Image Info area
(the P in C/P).
7.3.7 Color Map & Directional DPI
C MAP/DIRECT.D
Select this item from the context menu, use the LEFT/RIGHT keys to adjust the
color map setting. Similar to the Color Map in the CDI mode, this function select
the method for the color-coding of the display of blood flow.
To enable directional DPI, continue adjusting this item until the above Directional
DPI icon is displayed on the lower left corner of the screen.
Remark:
• Note that enabling Directional DPI is only possible during the real time DPI
scan.
• Adjusting Color Map setting is also possible in the freeze mode.
Directional DPI displays the direction of flow while in Doppler Power Imaging. This
function is very useful when there is requirements in applications where sensitiv-
ity and directional information are both required. Red represents flow toward the
transducer; Blue represents flow away from the transducer.
P/N: 4701-0061-01B
7-4
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