Unexpected Detection of Spontaneous Isolated Superior Mesenteric Artery Dissection by Renal Artery CT Imaging in 12 Hypertension Patients
10.3969/j.issn.1000-3614.2016.07.013
- VernacularTitle:肾动脉计算机断层摄影术成像意外检出自发性孤立性肠系膜上动脉夹层12例分析
- Author:
Shan LIANG
;
Zhaoqian WANG
;
Chongfu JIA
;
Zhiqiang YANG
;
Xixia SUN
;
Hao WANG
;
Xueyan JIA
;
Aijun CHEN
- Publication Type:Journal Article
- Keywords:
Superior mesenteric artery;
Dissection;
Tomography,X-ray computed;
Hypertension
- From:
Chinese Circulation Journal
2016;31(7):676-678
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To study the features of spontaneous isolated superior mesenteric artery dissection (SISMAD) by unexpected detection of renal artery dual-source CT (DSCT) imaging in hypertension patients. Methods: A total of 4107 patients with suspected secondary hypertension received renal artery DSCT examination in our hospital from 2010-03 to 2015-04 were studied and SISMAD was unexpectedly found in 12 patients. There were 3 patients with mild abdominal pain and the rest without obvious abdominal symptoms. The position and length, true and false lumens, detached tunica intimal flap and branch involvement of dissection, intestinal wall edema and ileus were recorded. Results: SISMAD in all 12 (0.3%) patients were found unexpectedly. Axial CT with post-processing technique clearly displayed the ruptured tunica intimal orifice, true and false lumens, detached intimal flap; the branches were all originated from true lumen. According to Sakamoto classification, all 12 patients were belong to Type I as the true and false lumens were with an entry and re-entry respectively, no filling defect in false lumen. The distance from orifice of dissection to root of abdominal aorta was (26.7 ± 11.3) mm and the length of dissection was (35.1 ± 11.7) mm.There were 10 patients with aneurysmal expansion with the diameter of (11.9 ± 2.5) mm. Conclusion: Unexpected detection of SISMAD by renal artery CT imaging was about 0.3%, radiologist should pay special attention to find superior mesenteric artery dissection in hypertension patients.
