Mesenteric duplex scanning.
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.
Mitchell
Erica L
EL
Division of Vascular Surgery, Oregon Health & Science University, Portland, OR 97239, USA.
Moneta
Gregory L
GL
D002445:Celiac Artery / Q000000981:diagnostic imaging; D003251:Constriction, Pathologic; D005215:Fasting; D006801:Humans; D007422:Intestines / Q000098:blood supply*; D007511:Ischemia / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology; D017538:Mesenteric Artery, Superior / Q000000981:diagnostic imaging; D008641:Mesenteric Vascular Occlusion / Q000150:complications / Q000000981:diagnostic imaging* / Q000503:physiopathology; D019518:Postprandial Period; D017410:Practice Guidelines as Topic; D011237:Predictive Value of Tests; D013152:Splanchnic Circulation; D014057:Tomography, X-Ray Computed; D018616:Ultrasonography, Doppler, Duplex