5-16 Image Optimization
B/C Align
To set and constrain the maximum width of the B mode image to that of the
Color ROI.
Turn on or off the function through the [B/C Align] item on the image menu.
Impacts
Frame rate increases when the function is turned on.
Dual Live
This function is used to display B image and Color image synchronously.
Turn on or off the function through the [Dual Live] item on the image menu.
When the function is turned on, the window will be automatically switched to
the dual windows (one for B image, and the other for Color image).
Line Density
Line density determines the quality and information of the image.
Adjust through the [Line Density] item on the image menu.
There are 4 levels of line density provided: H, L, UH, M.
The higher the line density, the higher the resolution.
Impacts
The higher the line density, the lower the frame rate.
ROI Adjustment
This function is to adjust the width and position of ROI in Color mode.
When the ROI box is dotted line, roll the trackball to change the size.
When the ROI box is solid line, roll the trackball to change the position.
Press <Set> to switch between the solid line and the dotted line.
Impacts
The larger the ROI box, the lower the frame rate, and the lower the resolution
and color sensitivity.
Smooth
This feature is used to reject noise and smooth the image.
Adjust through the [Smooth] item on the image menu.
The system provides 0-4 levels of smooth function, the bigger the value the
higher the smooth.
5.7 Power Mode Image Optimization
Power mode provides a non-directional display of blood flow in the form of intensity as
opposed to flow velocity.
DirPower (Directional Power mode) provides additional information of flow direction towards
or away from the probe.
5.7.1 Basic Procedures for Power Mode Imaging
1. Select a high-quality image during B + Color scanning, and adjust to place the area of
interest in the center of the image.
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