5-26 Image Optimization
Invert
Description This function is used to set the display manner of spectrum.
Operation Turn on or off the function through the [Invert] item in the soft menu or
menu.
Select "Auto Invert" in the "[Setup] → [System Preset] → [Image Preset]",
then the color bar can automatically invert when the color flow is steered to
a certain angle to accommodate operator’s habit of distinguishing flow
direction.
Impacts The function is available in real-time imaging, freeze or cine review status.
Speed
Description This function is used to set the scanning speed of PW mode imaging.
Operation Adjust the speed through the [Speed] item in the soft menu or menu.
There are 6 levels of scan speed available, the smaller the value the faster
the speed.
Effects Changing the speed makes it easier to identify the cardiac cycles and to
detect more details.
T/F Res
Description This function is used to adjust for a balance between time resolution and
spatial resolution.
Operation Adjust through the [T/F Res] item in the soft menu or menu.
There are 4 levels of T/F Res values available, adjust according to the
actual situation and the transducer.
WF (Wall Filter)
Description It filters out low-velocity signals to provide effective information, and this
function is used to adjust the filtered frequency. The real-time value is
displayed in the image parameter area in the upper left corner of the
screen.
Operation Select through the [WF] item in the soft menu or menu.
Or adjust it in the image parameter area.
There are 7 levels of wall filter function available, adjust according to the
actual situation and the transducer.
Impacts Flow signals may be missing.
Time Mark
Description Turn on or off the function to show the time mark in PW mode image, which
facilitates to specify the time information of special points.
Operation Turn on or off the function through [Time Mark] item in the soft menu or
menu.
Effects This function facilitates to specify the time information of special points, and
makes it easier to identify the cardiac cycles and detect more details.
Impacts The function is available in real-time imaging, freeze or cine review status.
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