Back to Basics 5500 Guide de l'utilisateur Page 202

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Imaging Modalities
PW and CW Imaging
7-86 Revision D.0
Noncardiac primary
Unless otherwise specified, controls pertain to both PW and CW Doppler. Angio
and Color modes can be combined with both PW and CW imaging.
Audio Turns PW Doppler audio on or off. Available when PW
is on and Spectral and Color are off.
Baseline Unwraps aliased signals by adjusting the zero baseline
on the Doppler spectrum. Is displayed only when
Spectral is on.
BMode Hold Freezes the BMode reference image and provides an
uninterrupted Doppler spectrum. Is displayed only
when Spectral is on and an imaging transducer is
active.
BMode Live Freezes the Doppler spectrum and returns the BMode
reference image to real-time. Is displayed only when
Spectral is on, and an imaging transducer is active.
Color Gain Adjusts system sensitivity to received color flow
signals. Increasing the color gain increases the amount
of color displayed. Is displayed as part of the Color and
BMode Live control set.
Color Scale Changes the range of color flow velocities. Is displayed
as part of the Color and BMode Live control set.
Color Steering Steers linear color images to either the right or left, to
achieve optimal color flow angles. When using a linear
transducer in a vascular preset, the color map
automatically inverts if you steer the transducer from
left to right. The baseline also returns to its original
position automatically. Is displayed as part of the Color
and BMode Live control set.
Compress In conjunction with the Reject rotary control, adjusts
the grayscale of the Doppler spectrum. Is displayed
only when Spectral is on.
Cursor Angle Adjusts the angle-correction cursor to an estimated
angle of flow direction (from 0 to 80 degrees).
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