CRITERIA FOR ASSESSMENT OF SUPERIOR MESENTERIC ARTERY SYNDROME
Message:
Abstract:
Background and Aims
Superior Mesenteric Artery Syndrome (SMAS) is a rare cause of upper intestinal obstruction manifested by retching or vomiting. Thanks to the difficulties arising in its diagnosis, it is usually done by elimination of other causes. We tried to report on the radiological manifestation of this rare syndrome aiming to find reliable predictable signs in imaging.
Materials and Methods
The findings obtained from abdominal MDCT and barium meal of 50 adult patients with clinical symptoms suspected for SMAS.
Result
Our study showed two radiographic signs for diagnosis of SMAS: which are dilatation of descending duodenum because of D3 compression and decreased aorto-mesenteric angle. Multi-Detector-Computerized-Tomography (MDCT) was preferable to obtain the exact angle range between SMA and aorta. There was a significant correlation between D3 diameter and aorto-mesenteric angle (p<0.01). 3 cases were diagnosed as SMAS, among 50 cases enrolled in this study. The mean angle was 17±1 degree and the mean D3 diameter was 0.46±0.024 cm.
Conclusion
MDCT is preferable imaging modality compared to barium study where we can exclude other simulating causes with different symptoms. It can provide the exact angle between SMA and aorta which is a essential imaging sign for diagnosis
Language:
Persian
Published:
Urmia Medical Journal, Volume:24 Issue:6, 2013
Pages:
449 - 454
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