Image Optimization 5-19
Effects Increasing the gain will increase the flow signal presented and noise. The
signals may be missing when the gain is adjusted too low.
Map
Description This feature indicates the display effect of the Power image.
The maps in the Power mode image are grouped into two categories:
Power maps and Directional Power maps.
Operations To select from among the maps, turn the knob under [Map] on the touch
screen.
There are 8 kinds of maps provided: P0-3 belong to Power mode maps,
while dP0-dP3 belong to Directional Power mode maps.
The Power maps provide information about blood flow, which are highly
sensitive to the low-velocity flows.
The Directional Power maps provide information about flow direction.
Dynamic Range
Description This function adjusts the transformation of echo intensity into color signal.
Operations Adjust through the [Dyn Ra.] item on the touch screen to adjust the
dynamic range.
The adjusting range is 10-70dB in increments of 5dB.
Effects Increasing the dynamic range leads to higher sensitivity to low-power
signals, thus enhancing the range of signals to display.
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