Blood flow in deep abdominal and pelvic vessels: ultrasonic pulsed-Doppler analysis.

摘要: Ultrasonic pulsed-Doppler signals from deep-lying vessels in the normal abdomen and pelvis are described. The signal characteristics combine to produce a Doppler "signature" that is specific for each vessel. clinical potential of this method deep flow detection considered relation three areas analysis: first, qualitative indication presence, direction, or absence structure; second, more quantitative description time velocity waveforms spectral content; third, estimation absolute volume flow. Limitations these methods abdominal obtained discussed.