User`s guide

Imaging Modalities
PW and CW Imaging
7-88 Revision D.0
Scale Adjusts the range of Doppler velocities displayed.
When the Scale setting is increased beyond standard
PW levels, high PRF is activated. The HPRF label is
displayed above the waveform, and diamond-shaped
gates are displayed on the image. The high PRF feature
displays higher velocity flow. Is displayed only when
Spectral is on.
Scale (Angio) Changes the range of angio flow velocities whose
amplitude can be displayed. This affects the PRF.
Lower the scale to see slow flow, and increase it to see
higher velocities. Is displayed as part of the Angio and
BMode Live control set.
Scroll/Trace
Image
Causes image to toggle between scrolling the trace
display and the reference image. To use Scroll, you
must first press .
Spectral Displays the Doppler spectrum on the screen.
Spectral Invert Affects whether velocities moving toward the
transducer are displayed above or below the zero
baseline. Spectral Invert also changes the sign (+/-) on
the Doppler scale. Is displayed only when Spectral
is on.
Steering (Angio) Steers linear angio images to the right or left, to achieve
optimal angio flow angles. The baseline also returns
automatically to the selected position. Is displayed as
part of the Angio and BMode Live control set.
Freeze