User`s guide

Imaging Modalities
PW and CW Imaging
7-82 Revision D.0
Controls
Cardiac primary
NOTE The screen can display an image and trace using four different formats. For more
information, see “Displaying spectral and MMode traces” on page 7-57.
Unless otherwise specified, controls pertain to both PW and CW Doppler. Angio
mode can be combined with both PW and CW imaging.
2D Hold Freezes the 2D reference image and provides an
uninterrupted Doppler spectrum. Is displayed only
when Spectral is on.
2D Live Freezes the Doppler spectrum and returns the 2D
reference image to real-time. Is displayed only when
Spectral is on, and an imaging transducer is active.
Baseline Unwraps aliased signals by adjusting the zero baseline
on the Doppler spectrum. Is displayed only when
Spectral is on.
Colorize Optimizes contrast resolution by activating the current
colorization map and overlaying the grayscale image.
To change the active map, turn the color rotary control
just under the Colorize touch control.
Compress In conjunction with the Reject rotary control, adjusts
the grayscale of the Doppler spectrum.
Filter Removes audible signals of frequencies below the hertz
level specified. For lower filter settings, both audio and
spectral information are removed.
Focus Repositions the acoustic depth of the color focal zone.
Full Screen If an MMode Trace or Spectrum is present, toggles
between full size trace and the last used mode format
defined by Image Size.