User`s guide

Imaging Modalities
PW and CW Imaging
Revision D.0 7-89
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
Sweep Changes the sweep speed for the Doppler spectrum. Is
displayed only when Spectral is on. Available speeds
are 25, 50, 100, and 150 mm/sec.
Threshold Determines the type of signals used in calculating the
trace waveform. A higher setting indicates lower level
pixels are used to calculate the trace waveform. To use,
first press
.
Trace [Trace Auto, Trace Top, Trace Bottom]
Works in conjunction with autotrace’s blue line. Press
the key and then touch Trace Auto. You can
then toggle through the trace selections. Trace Auto
includes PW information which is seen above and
below the baseline. Trace Top displays the signal
above the baseline, and Trace Bottom displays the
signal below the baseline.
Triplex Activates simultaneous triplex Doppler mode, in which
both the image and Doppler spectral trace are live with
Color/Angio on. Available in vascular presets.
Waveform
Suppress
Suppresses waveform line used for autotrace after
.
Zoom
Turns 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.
Freeze
Freeze
Freeze
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