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Radiology, Vol 128, 439-445, Copyright © 1978 by Radiological Society of North America

ARTICLES

A new ultrasonic real-time scanner featuring a servo-controlled transducer displaying a sector image

ML Skolnick and T Matzuk

This paper describes a new real-time servo-controlled sector scanner that produces high-resolution images similar to phased-array systems, but possesses the simplicity of design and low cost best achievable in a mechanical sector scanner. Its unique feature is the transducer head which contains a single moving part--the transducer. Frame rates vary from 0 to 30 degrees and the sector angle from 0 to 60 degrees. Abdominal applications include: differentiation of vascular structures, detection of small masses, imaging of diagonally oriented organs. Survey scanning, and demonstration of regions difficult to image with contact scanners. Cardiac uses are also described.




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