A Crossed Beam Doppler Ultrasound Concept for Improved Detection of Atherosclerosis.

摘要

Initial work has been undertaken to design and carry out a program of development and evaluation of a crossed beam continuous wave Doppler and B-scan ultrasound imaging system aimed at noninvasive detection,quantification and visualization of atherosclerotic lesions and associated modifications in blood flow. Extensive computer calculations were carried out to determine the optimum dimensions for the required transducer array. Concepts were developed for electronic control of array phasing and computer software and interfacing. Initial fabrication,assembly and checkout of prototype components has been performed. Preliminary results indicate that the crossed beam flowmeter is highly linear over a wide range of flow velocities.