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Proceedings Paper

Intraoperative endovascular ultrasonography
Author(s): Darwin Eton; Samuel S. Ahn; J. Dennis Baker; Joseph Pensabene; Lawrence S. Yeatman; Wesley S. Moore
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Paper Abstract

The early experience using intra-operative endovascular ultrasonography (EU) is reported in eight patients undergoing lower extremity revasularization. In four patients, intra-operative EU successfully characterized inflow stenoses that were inadequately imaged with pre- operative arteriography. Two patients were found to have hemodynamically significant inflow stenoses, and were treated with intra-operative balloon angioplasty followed by repeat EU. The other two patients were found to have non-hemodynamically significant inflow stenoses requiring no treatment. Additional outflow procedures were required in all four patients. In the remaining four patients, EU was used to evaluate the completeness of TEC rotary atherectomy, of Hall oscillatory endarterectomy, of thrombectomy of the superficial femoral and popliteal arteries, and of valve lysis during in situ saphenous vein grafting, respectively. In the latter case, the valve leaflets were not clearly seen. In the other cases, EU assisted the surgeon. Angioscopy and angiography were available for comparison. In one case, angioscopy failed because of inability to clear the field while inspecting retrograde the limb of an aorto-bi-femoral graft. EU however was possible. No complications of EU occurred. EU is a safe procedure indicated when characterization of a lesion is needed prior to an intervention or when evaluation of the intervention's success is desired. We did not find it useful in valve lysis for in-site grafting.

Paper Details

Date Published: 1 May 1991
PDF: 6 pages
Proc. SPIE 1425, Diagnostic and Therapeutic Cardiovascular Interventions, (1 May 1991); doi: 10.1117/12.44033
Show Author Affiliations
Darwin Eton, Univ. of California/Los Angeles Ctr. for the Health Sciences (United States)
Samuel S. Ahn, Univ. of California/Los Angeles Ctr. for the Health Sciences (United States)
J. Dennis Baker, Univ. of California/Los Angeles Ctr. for the Health Sciences (United States)
Joseph Pensabene, Univ. of California/Los Angeles Ctr. for the Health Sciences (United States)
Lawrence S. Yeatman, Univ. of California/Los Angeles Ctr. for the Health Sciences (United States)
Wesley S. Moore, Univ. of California/Los Angeles Ctr. for the Health Sciences (United States)


Published in SPIE Proceedings Vol. 1425:
Diagnostic and Therapeutic Cardiovascular Interventions
George S. Abela, Editor(s)

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