6 Image Acquisition
Operator’s Manual 6 - 5
Image Quality
Refers to the transmitting frequency in Doppler mode of the probe, the real-time value of which is
displayed in the image parameter area.
Frequency values vary according to probe types. Select the frequency according to the needs of the
detection depth and the current tissue characteristics.
B/C Align
To set and constrain the maximum width of the B mode image to that of the Color ROI.
Steer
The feature is used to adjust the ROI of the color flow of different angles with immobility of the
linear probe.
Dual Live
This function is used to display B image and Color image synchronously.
Line Density
The function determines the quality and information of the image.
The higher the line density is, the higher the resolution becomes.
Packet Size
This function is an indication of the ability to detect flow, which is used to adjust the accuracy of
color flow.
The higher the sensitivity is, the more sensitive indication for low-velocity flow becomes.
Flow State
Refers to optimizing the various flow states.
Persistence
This function is to adjust the temporal smooth to optimize the image.
Smooth
This feature is used to reject the noise and smooth the image.
Scale
This function is used to adjust the speed range of color flow, which is adjusted through PRF in the
system. The real-time PRF value is displayed in the image parameter area.
Aliasing may occur if low velocity scale is used and high velocities are encountered.
Low velocities may not be identified when a high velocity scale is used.
Baseline
Refers to the area where the velocity is zero in the scale. Adjust according to the actual situation so
as to get an optimum flow display.
Invert
To set the display mode of the color flow. The color scale will be inverted when the function is
turned on.
Color Map
This function is a combination of several image parameters, which indicates the display effect of
color image.
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