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Operation Manual
PW Spectral Doppler Mode
PW stands for Pulse Wave. PW Spectral Doppler Mode gives information on the speed of blood ow at
a specic site in the form of a spectral trace and audio signal. Distance (depth) information can also be
obtained by transmitting pulses over time frames.
This mode is useful for measuring low-speed blood ow such as in the abdomen and peripheral vessels.
The 2D Mode image is also shown, allowing the marking and adjustment of an observation area within
the entire image.
[Figure 4.7 PW Spectral Doppler Mode]
Entering and Exiting PW Spectral Doppler Mode
Press the PW button on the control panel. Press it again to return to 2D Mode.
Press the Set button on the control panel to obtain a spectral doppler image.
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