User`s guide

Imaging Modalities
PW and CW Imaging
Revision D.0 7-83
ssn February 10, 1999 C:\WINNT\Profiles\dapowell\Desktop\D.0 Books\CD FILES SONOS
D.0\System Basics D.0\Frame Files\7CH.FM add.2
Gain Adjusts the amplitude of received Doppler signals and
noise.
Nonimage Xducer Activates nonimage CW transducer. Appears only
when a nonimaging transducer is plugged in.
Produces a hard copy of the screen display. If the
onscreen image is live, it briefly freezes during printing
and then returns to live imaging. You also can use the
foot switch pedal to print information.
Reject In conjunction with Compress, adjusts the grayscale of
the Doppler spectrum. Removes low-level Doppler
signals.
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.
Spectral Displays the Doppler spectrum on the screen. Turns off
Spectral in PW mode, which makes PW Doppler audio
available.
Sweep Changes the sweep speed for the Doppler spectrum,
and any active physios. Is displayed only when
Spectral is on. Available speeds are 25, 50, 100, and
150 mm/sec.
Tissue Doppler Turns Tissue Doppler mode on and off. Not available in
CW.
Zoom
Turns 2D/BMode zoom (magnification) on or off. To
move the zoom preview area, use the trackball
( is active when you first enter zoom preview).
To resize the zoom preview area, press and use
the trackball. Then touch Zoom again to enter full
zoom mode.
Print
Tip: When activated,
Zoom is first outlined
by a box. This
indicates zoom
preview. Touch Zoom
a second time to go
into full zoom.
Position
Size