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(RV Volume Acquisition – cont.)
4. Adjust gains and volume optimize
Step 1: Start by adjusting 2D gain in 2D mode. Use the TGC's to make
sure that the image is uniform from apex to base in brightness as well
as in azimuth and elevation planes
Step 2: Enter 4D and ensure that 2D gain is correct by looking at cut planes
Step 3: If necessary adjust 4D gain. Turn 4D gain up if there is a lot of noise in
the left ventricular cavity that obscures the back wall. Turn 4D gain down if
there are black holes in the wall. Choose best color depth render map
(RV Volume Acquisition – cont.)
Step 4: If necessary adjust the volume optimize and/or transparency (page 2
of touch panel). Increasing these may help you see through any cavity noise
Step 5: It is recommended to be conservative with both smoothing and
shading (page 2 of touch panel). Smoothness will smooth the image but also
slightly blur. Shading up will increase crispness, recommended at 25
RV Volume Acquisition
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