{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,4,11]],"date-time":"2025-04-11T04:59:16Z","timestamp":1744347556883,"version":"3.37.3"},"reference-count":14,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2017,9,28]],"date-time":"2017-09-28T00:00:00Z","timestamp":1506556800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Acute Medicine & Surgery"],"published-print":{"date-parts":[[2018,4]]},"abstract":"Aims<\/jats:title>The smaller superior mesenteric vein (SMV<\/jats:styled-content>) sign is a well\u2010known computed tomography (CT<\/jats:styled-content>) parameter for acute superior mesenteric artery (SMA<\/jats:styled-content>) occlusion. This CT<\/jats:styled-content> sign is potentially beneficial for the early diagnosis of acute SMA<\/jats:styled-content> occlusion; however, few reports have documented this sign. The present study aimed to determine the accuracy of the smaller SMV<\/jats:styled-content> sign for the detection of acute SMA<\/jats:styled-content> occlusion.<\/jats:p><\/jats:sec>Methods<\/jats:title>We retrospectively reviewed CT<\/jats:styled-content> images from 20 patients with acute SMA<\/jats:styled-content> occlusion and 1,216 controls. We measured the external diameters of the SMV<\/jats:styled-content> and SMA<\/jats:styled-content>, and calculated the SMV<\/jats:styled-content>\/SMA<\/jats:styled-content> diameter ratio. A ratio \u22641 indicated a positive smaller SMV<\/jats:styled-content> sign.<\/jats:p><\/jats:sec>Results<\/jats:title>Of the 20 patients, 14 had the smaller SMV<\/jats:styled-content> sign, whereas of the 1,216 controls, 88 had the smaller SMV<\/jats:styled-content> sign. Of the 88 controls with a positive sign, 79 had apparent reasons for the decreased flow in the SMA<\/jats:styled-content> and nine patients had no reason for the decreased flow. The sensitivity and specificity of the smaller SMV<\/jats:styled-content> sign for acute SMA<\/jats:styled-content> occlusion were 70% and 99.2%, respectively.<\/jats:p><\/jats:sec>Conclusion<\/jats:title>The smaller SMV<\/jats:styled-content> sign is an accurate and important CT<\/jats:styled-content> parameter for the detection of acute SMA<\/jats:styled-content> occlusion.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ams2.313","type":"journal-article","created":{"date-parts":[[2017,9,28]],"date-time":"2017-09-28T15:58:00Z","timestamp":1506614280000},"page":"129-132","source":"Crossref","is-referenced-by-count":6,"title":["Accuracy of the smaller superior mesenteric vein sign for the detection of acute superior mesenteric artery occlusion"],"prefix":"10.1002","volume":"5","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7239-9688","authenticated-orcid":false,"given":"Takaaki","family":"Nakano","sequence":"first","affiliation":[{"name":"Department of Emergency Medicine Shinyurigaoka General Hospital Kawasaki Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toshitaka","family":"Ito","sequence":"additional","affiliation":[{"name":"Department of Emergency Medicine Shinyurigaoka General Hospital Kawasaki Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tetsuhiro","family":"Takei","sequence":"additional","affiliation":[{"name":"Department of Critical Care Medicine Yokohama Minato Red Cross Hospital Yokohama Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masaaki","family":"Takemoto","sequence":"additional","affiliation":[{"name":"Department of Emergency Medicine Shinyurigaoka General Hospital Kawasaki Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,9,28]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMra1503884"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.5754\/hge11251"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00261-008-9392-8"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2291020991"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.2215\/CJN.01260308"},{"key":"e_1_2_8_7_1","doi-asserted-by":"publisher","DOI":"10.1097\/01.ccm.0000457912.49606.05"},{"key":"e_1_2_8_8_1","first-page":"162","volume-title":"A Key to Gastrointestinal Imaging","author":"Nakamura S","year":"2015"},{"key":"e_1_2_8_9_1","first-page":"83","article-title":"CT diagnosis of acute occlusion of the superior mesenteric artery","volume":"56","author":"Suzuki A","year":"1996","journal-title":"Nippon Acta Radiol."},{"key":"e_1_2_8_10_1","first-page":"427","article-title":"Acute superior mesenteric arterial occlusion\u2010occlusion sites and its clinical course","volume":"16","author":"Mogi K","year":"1996","journal-title":"J Abdominal Emerg. 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