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User Manual
Exiting PW Spectral Doppler Mode
Press the PW dial-button while the Doppler image is being displayed. You can also press the 2D
dial-button to exit PW Spectral Doppler Mode.
Press the Set button on the control panel to obtain a spectral doppler image.
NOTE: The doppler image can only be obtained in the D Only or Simultaneous states.
PW Spectral Doppler Mode Screen Sample Volume
The doppler spectrum is displayed when the Sample Volume is located above the blood ow
on the 2D image. The size of the Sample Volume is displayed in mm units. Use the trackball to
adjust the position of the Sample Volume.
X
Moving Sample Volume: Use the trackball on the control panel.
X
Resizing Sample Volume: Using the touch screen: Select the SV Size dial-button on the
touch screen.
X
Adjusting Sample Volume Angle: Rotate the Angle dial-button on the control panel to select
a value between -80-80 degrees. Press the Angle dial-button to select either -60, 0, or 60
degrees.
Adjusting Doppler Baseline
Adjust the Baseline by rotating the dial-button on the touch screen.
HPRF (High PRF) Function
Adjust the blood ow above the speed limit at a specic depth. The scale is increased; this can
only be used in PW Spectral Doppler mode (D Only).
NOTE: Setup > Imaging > Common > HPRF
X
Activating HPRF
Increasing the scale at a specic depth to a certain point automatically activates HPRF.
The Phantom Gate will appear on the D Line at a position higher than the sample volume.
Once HPRF starts, PRF does not increase even if you increase the scale value.
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