5-20 Image Optimization
Operations
Adjust through the [Dynamic Range] item on the image menu.
The adjusting range is 24-72dB in increments of 2dB.
Effects
The more the dynamic range, the more specific the information, and the lower
the contrast with more noise.
HPRF
Description
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.
Operations
Turn on or off the function through the [HPRF] item on the image menu.
Effects
HPRF enhances the range of detecting high-velocity flow.
HPRF is an option.
Speed
Description
This function is used to set the scanning speed of PW mode imaging.
Operations
Click the [Speed] item on the image 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.
Display Format
Description
To set the display format of PW mode image with B mode image.
Operations
Click the [Display format] item on the image menu to adjust.
Options: V2:1, V1:2, V1:1, Full.
Audio
Description
This function is used to adjust the output audio in spectrum map.
Operations
Click the <Audio> item on the image menu to adjust the volume.
You can also adjust the audio volume by pressing
+
/
.
The adjusting range of the audio is 0-100%.
Effects
Utilizing the output audio helps to identify the feature and status of flow.
Tint Map
Description
This function provides an imaging process based on color difference rather
than gray distinction.
Operations
Click the [Tint Map] item on the image menu to select the map.
There are 16 maps available.
Gray Map
Description
This function applies the gray correction to obtain the optimum images.
