Steerable doppler transducer probes.

摘要

An ultrasonic diagnostic probe is provided which performs simultaneous ultrasonic imaging and Doppler flow measurement. The Doppler transducer (32) is mounted for rotation by a mechanical assembly, which permits the Doppler beam (130) to be steered during imaging to the point in the body where a flow measurement is to be taken. As the Doppler transducer (32) is rotated, a variable impedance device (80) within the probe is adjusted in correspondence with the transducer rotation so as to provide an indication signal of the direction in which the Doppler beam (130) is being directed.