Abstract
An improved Ultrasonic B-scan/Doppler system has been developed for the noninvasive assessment of atherosclerotic arterial disease. Very high-resolution cross-sectional images of anatomic structures are produced by the 10-MHz B-scan subsystem. Instantaneous profiles of blood flow velocity as a function of position are produced by a bidirectional 16-channel pulsed-Doppler subsystem, operating at 5 MHz. Flow profiles are superimposed on the B-scan image, allowing simultaneous evaluation of anatomic structure and blood flow dynamics. Images of the carotid artery, thyroid gland, testicle, and eye are presented to demonstrate the diagnostic potential for imaging peripheral anatomy.
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