5-18 Image Optimization
T/F Res
This function is used to adjust for a balance between time resolution and
spatial resolution.
Adjust through the [T/F Res] item on the image menu.
Dynamic Range
The dynamic range conveys the information that being transformed from echo
intensity to gray scale.
Adjust through the [Dynamic Range] item on the image menu.
The more the dynamic range, the more specific the information, and the lower
the contrast with more noise.
HPRF
HPRF mode is used when detected velocities exceed the processing
capabilities of the currently selected PW Doppler scale, or when the selected
anatomical site is too deep for the selected PW Doppler scale.
Turn on or off the function through the [HPRF] item on the image menu.
Effects
HPRF enhances the range of detecting high-velocity flow.
Speed
This function is used to set the scanning speed of PW mode imaging.
Click the [Speed] item on the image menu.
The smaller the value the faster the speed.
Changing the speed makes it easier to identify the cardiac cycles and to
detect more details.
Display Format
To set the display format of PW mode image with B mode image.
Click the [Display format] item on the image menu to adjust.
Options: V2:1, V1:2, V1:1, Full.
Audio
This function is used to adjust the output audio in spectrum map.
Click the <Audio> item on the image menu to adjust the volume.
Utilizing the output audio helps to identify the feature and status of flow.
Colorize and Colorize Map
Colorize function provides an imaging process based on color difference rather
than gray distinction.
Turn on or off the function through the [Colorize] item in the menu;
Select the colorize map through the [Colorize Map] item in the menu;
The function is available in real-time imaging, freeze or cine review status.
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