Table of Contents
•
Adjust Power to obtain an acceptable image using the
The Doppler Power
setting affects only
lowest setting possible. This is particularly important in CW
Doppler operating
mode, as the energy duty cycle is 100% (constant).
modes.
Use all noise reduction controls with care. Excessive
application may obscure low level diagnostic information.
CAUTION
Adjust the following settings to further optimize the display of
the image.
•
Use the Horizontal sweep to optimize the sweep speed.
•
To view signal detail, use the Velocity range to enlarge the
vertical spectral Doppler trace.
•
Use Invert to reverse the vertical component of the spectral
Doppler area of the display.
•
Use Angle correction to steer the ultrasound beam to the
blood flow to be measured (Not typically required during
cardiac studies).
Vivid i User's Manual
2378958-100 Rev. 02
Scanning Modes
99
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