Validated criteria for stenosis in visceral vessels

Artery	Percent of stenosis	Criteria
Superior mesenteric artery	≥70 percent	Peak systolic velocity >275 cm/s
Celiac artery	≥70 percent	Peak systolic velocity >200 cm/s
Renal artery	≥60 percent	Renal aortic ratio >3.5 (PSV in renal artery/PSV in adjacent aorta)
Renal artery	≥80 percent	Renal aortic ratio >3.5 and renal artery end diastolic velocity ≥150 cm/s

Data from:

Moneta GL, Lee RW, Yeager RA, et al. Mesenteric duplex scanning: a blinded prospective study. J Vasc Surg 1993; 17:79.
Gentile AT, Moneta GL, Lee RW, et al. Usefulness of fasting and postprandial duplex ultrasound examinations for predicting high-grade superior mesenteric artery stenosis. Am J Surg 1995; 169:476.
Moneta GL. Screening for mesenteric vascular insufficiency and follow-up of mesenteric artery bypass procedures. Semin Vasc Surg 2001; 14:186.

Courtesy of Dr. Erica Mitchell.

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