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Perspectives in Vascular Surgery and Endovascular Therapy
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Mesenteric Duplex Scanning

Erica L. Mitchell, MD

Division of Vascular Surgery, Oregon Health & Science University, Portland, Oregon

Gregory L. Moneta, MD

Division of Vascular Surgery, Oregon Health & Science University, Portland, Oregon, monetag{at}ohsu.edu

Duplex scanning of mesenteric arteries was developed in the late 1980s. It’s primary clinical application is to identify high-grade stenoses in the superior mesenteric artery (SMA) and celiac artery that may be associated with the clinical condition of chronic mesenteric ischemia. A peak systolic velocity of >275 cm/s in the SMA identifies a >70% SMA stenosis with a sensitivity of 92%, a positive predictive value of 80% and a negative predictive value of 99%. A negative mesenteric duplex study therefore virtually excludes the presence of clinically important mesenteric artery stenosis. A positive study requires confirmation with an additional imaging study prior to mesenteric artery reconstruction. Other applications of mesenteric duplex scanning include identification of reversible compression of the celiac artery, follow-up of mesenteric bypass grafts and physiological studies of the intestinal circulation.

Key Words: duplex scanning • chronic intestinal ischemia • mesenteric artery stenosis • celiac axis compression

Perspectives in Vascular Surgery and Endovascular Therapy, Vol. 18, No. 2, 175-183 (2006)
DOI: 10.1177/1531003506291885
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