VDO MG 2100 Especificações Página 329

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Rev 1.1 VisualSonics Vevo 2100 Imaging System Operator Manual 329
Chapter 45: Acquiring Power Doppler Mode images
Doppler Gain
Adjusts the frequency shift in increments of 1.0 dB. Turn clockwise to add gain and
brighten the Doppler data. Turn counterclockwise to reduce gain and darken the data.
Active during: PW Doppler Mode, PW Tissue Doppler Mode, Color Doppler Mode,
Power Doppler Mode image acquisition sessions.
Power
Activates Power Doppler Mode acquisition and begins displaying the power box overlay
over the B-Mode background image.
Velocity
Adjusts the PRF (pulse repetition frequency).
SV/Gate
Push up to increase. Pull back to decrease. In Power Doppler Mode: Adjusts the size of
the gate, indexed in a range from 1-6.
Set your gate to 1 for the best axial resolution.
Set your gate to 6 for the best sensitivity.
Wall Filter
Filters out signals that correspond to low velocity axial motion. Typically these include
vessel wall movement, cardiac wall movement and tissue movement caused by
respiration. Push up to filter out more. Pull down to filter out less.
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