
Rev 1.1 VisualSonics Vevo 2100 Imaging System Operator Manual 419
Appendix C: Descriptions of control panel controls
some cases, if your imaging window is large and the
Velocity
is set high, the
minimum speed may be greater. The system displays the updated values in the
status bar in the lower left area of the screen.
Active during: M-Mode, PW Doppler Mode and PW Tissue Doppler Mode image
acquisition and review sessions.
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Time gain compensation controls. During image acquisition in any B-Mode based
imaging mode, each slider adjusts the ultrasound signal to compensate for minor
attenuation as it returns through deeper situated tissue. Each slider adjusts the
return signal across a specific depth band. The top slider adjusts the return signal
across the area closest to the probe face. The bottom slider adjusts the return
signal across the area furthest from the probe face. Push the slider to the right to
boost the signal and brighten the image data in that horizontal band, and left to
attenuate the signal and darken that band.
Tissue
During a PW Doppler Mode image acquisition, activates PW Tissue Doppler
Mode image acquisition.
Transmit Power
Adjusts the power of the ultrasound signal transmission.
Turn clockwise to increase power. Turn counterclockwise to decrease power.
Between 1% and 10% power the control adjusts power in increments of 1%.
Between 10% to 100% power the control adjusts in increments of 10%.
Update
Function 1: display control
Alternates the display from the dual view (B-Mode scout window on top, Mode
image window on the bottom) to the B-Mode image plus overlay so you can
position your sample gate (in M-Mode) or sample volume (in PW Doppler Mode)
more precisely.
To use this toggle control:
1. Press to view the dual view.
2. Press again to display the B-Mode window and overlay.
Function 2: right-click button
When the manual directs you to right-click, press
Update
.
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