Intravascular Imaging With Ultrasound

Craig J Hartley; Michele P Sartori; Philip D Henry

doi:10.1117/12.945239

8 April 1988 Intravascular Imaging With Ultrasound

Craig J Hartley, Michele P Sartori, Philip D Henry

Author Affiliations +

Proceedings Volume 0904, Microsensors and Catheter-Based Imaging Technology; (1988) https://doi.org/10.1117/12.945239
Event: 1988 Los Angeles Symposium: O-E/LASE '88, 1988, Los Angeles, CA, United States

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.

Citation Download Citation

Craig J Hartley, Michele P Sartori, and Philip D Henry "Intravascular Imaging With Ultrasound", Proc. SPIE 0904, Microsensors and Catheter-Based Imaging Technology, (8 April 1988); https://doi.org/10.1117/12.945239

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