In Vitro Atherosclerosis: Correlation Between IV Ultrasonic Imaging And High Resolution MRI

C. R. Meyer; E. H. Chiang; D. M. Williams M.D.; A. J. Buda M.D.

doi:10.1117/12.952182

8 August 1989 In Vitro Atherosclerosis: Correlation Between IV Ultrasonic Imaging And High Resolution MRI

C. R. Meyer, E. H. Chiang, D. M. Williams M.D., A. J. Buda M.D.

Proceedings Volume 1068, Catheter-Based Sensing and Imaging Technology; (1989) https://doi.org/10.1117/12.952182
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

Previous in vitro ultrasonic imaging in our laboratory with a prototype subassembly suitable for use in an imaging catheter was performed at 20 MHz using a rather large transducer having a 2 mm aperture focussed at 10 mm [1,2,3]. More recently ultrasonic images obtained at 30 MHz with a 1 mm active aperture focussed at 3 mm, have been compared with high resolution magnetic resonance images (MRI). Axial and lateral ultrasonic resolutions have improved from 100 and 450 μm, respectively, to 100 and 150 μm using the newer, smaller transducer. Signal-to-noise ratios as visualized in the resulting images remains unchanged, and penetration of normal vessel walls is complete.

Citation Download Citation

C. R. Meyer, E. H. Chiang, D. M. Williams M.D., and A. J. Buda M.D. "In Vitro Atherosclerosis: Correlation Between IV Ultrasonic Imaging And High Resolution MRI", Proc. SPIE 1068, Catheter-Based Sensing and Imaging Technology, (8 August 1989); https://doi.org/10.1117/12.952182

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