| Doppler e., pulsed wave |
that employing pulsed wave Doppler ultrasonography to record the flow of blood through the cardiovascular system.
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| Doppler effect (phenomenon, principle) |
see under effect.
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| Doppler p. |
see under effect.
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| Doppler s. |
the magnitude of the change in frequency caused by the Doppler effect.
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| Doppler u. |
that in which the shifts in frequency between emitted ultrasonic waves and their echoes are used to measure the velocities of moving objects, based on the principle of the Doppler effect. The waves may be continuous or pulsed; the technique is frequently used to examine cardiovascular blood flow (Doppler echocardiography). See also pulsed wave Doppler u., continuous wave Doppler u., and color flow Doppler imaging, under imaging.
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