Controls in Color ....................................................................................................................................................... 4-12
Doppler
Doppler imaging is a display of a spectrum of flow velocities over time. The amplitude of the signal is
indicated as a shade of gray. Doppler imaging can be used to display any type of movement, including blood
flow and tissue movement. Pulsed wave (PW), pulsed wave Tissue Doppler Imaging (PW TDI), and
continuous wave (CW) Doppler are available. CW Doppler is not range specific.
When you tap Doppler, the D-line appears. You can position the D-line, adjust the gate size, or correct the
angle of the D-line before you display the Doppler trace.
To scan in Doppler
1 Tap Doppler.
The D-line appears
2 Do any of the following as needed:
Position the D-line by dragging the line left or right.
Adjust the gate size using any of the following methods
Pinch or expand the gate with your fingers.
Tap Gate Size.
If this control is hidden, tapping More Controls displays it.
3 Adjust the angle using any of the following methods: