A Study of the Anatomy of Superior Mesenteric Artery with Multislice Spiral CT Angiography

VernacularTitle:肠系膜上动脉夹角的CT解剖研究
Author: Zhixin CHEN ; Hanguo ZHANG ; Lihua LIANG ; Jianqun WAN ; Qingzhou ZHAO
Publication Type:Journal Article
Keywords: superior mesenteric artery; angle; CT angiography
From: Journal of Practical Radiology 2000;0(02):-
CountryChina
Language:Chinese
Abstract: Objective To measure the angle and distance between superior mesenteric artery (SMA) and abdominal aorta (AA) at the level of left renal vein and duodenum in Chinese.Methods The angle and distance between SMA and AA were measured in 41 patients with normal CT findings in the supine position using 16 slices multislice spiral CT(MSCT)scanner.Results The average angle of 41 normal cases was 47.4??18.3? (mean?SD), and 3 of 41 (7.3%)≤15?,10 of 41 (24.4%)≥70?. At the level of left renal vein and duodenum, the average distance between SMA and AA were (1.3?0.4) cm and (1.4?0.4) cm respectively.Conclusion MSCT allows accurately measure the angle and distance between SMA and AA, it shows significance in the diagnosis of SMA syndrome and nutcracker phenomenon.