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Chapter 4 Diagnosis Modes
PW Spectral Doppler Mode Menu
Following items are displayed on menu when you press the Menu dial-button in PW Spectral Doppler
mode. Select the item and adjust the value with the Menu dial-button.
■
Average
Increases spectrum quality. Select Low, Middle or High with the Menu dial-button.
■
Spectrum Ehc.
Spectrum Ehc stands for Spectrum Enhancement. This functionis used to compensate the signal
of low gain Spectral Doppler Spectrum. Select the value between 1- 8 with the Menu dial-button.
■
Simultaneous
View the 2D image and Spectral Doppler image simultaneously in real time. Press the Menu dial-
button to turn it on or o.
The Simultaneous function decreases Doppler PRF, thus decreasing the measurable speed range.
NOTE: This will appear on the PW menu only when Setup > System > Display > Simultaneous
Mode is set to Allow.
■
PW Size
Set the size of the PW spectral Doppler image. To adjust the image position, the 2D image is shown
together. Select Large, Normal, or Small with the Menu dial-button.
■
Speed
Adjust the sweep speed for the Doppler spectrum. Select 120Hz, 180Hz, 240Hz, or 300Hz with the
Menu dial-button.
■
PW Post
Brings up the sub-menu.
X
PW Map: Select the post map to use. Select a map between Type 1 ~ 5 or User 1 ~ 3 with the
Menu dial-button. When select User, you can make your own Map.
X
PW Chroma: Rotate the Menu dial-button to turn it on/o. When turned on, random color are
applied to an image displayed on the screen.
X
Color: Use the Menu dial-button to select a color. Select an item from 0 -280.
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