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Proceedings Paper

Intravascular Imaging With Ultrasound
Author(s): Craig J Hartley; Michele P Sartori; Philip D Henry
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Paper Abstract

One of the major unresolved problems in the development of laser angioplasty is in monitoring the process of plaque ablation in real-time to provide the necessary operator feedback. As part of a project to test the feasibility of intravascular imaging with ultrasound we have developed, constructed, and tested a 20 MHz transmitter/receiver which can detect echoes from transducers small enough to fit on a 3-F (1 mm diameter) catheter. Resolution with a small aperture (0.5 x 1.0 mm) focused transducer is about 0.25 mm in both axial and longitudinal directions at 1.5 to 6.0 mm from the transducer face. Images of arteries made in the laboratory with a simple rotational scanner have sufficient resolution to show lumen size and geometry, wall thickness, branches, and craters caused by laser ablation. From these initial studies intravascular ultrasonic imaging appears feasible.

Paper Details

Date Published: 8 April 1988
PDF: 4 pages
Proc. SPIE 0904, Microsensors and Catheter-Based Imaging Technology, (8 April 1988); doi: 10.1117/12.945239
Show Author Affiliations
Craig J Hartley, Baylor College of Medicine (United States)
Michele P Sartori, Baylor College of Medicine (United States)
Philip D Henry, Baylor College of Medicine (United States)

Published in SPIE Proceedings Vol. 0904:
Microsensors and Catheter-Based Imaging Technology
Alan I. West, Editor(s)

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