Yan Weiqiang, Huang Rong, Shi Qiao, Shan Huiming, Zhu Yi, Cheng Guanxun, Quan Xianyue
Department of Radiology, Zhujiang Hospital, Southern Medical University, No. 253 Guangzhou Industrial Avenue, Guangzhou 510280, China.
Department of Radiology, Peking University Shenzhen Hospital, No. 1120 Lianhua Road, Shenzhen 518036, China.
J Int Med Res. 2019 Dec;47(12):6139-6148. doi: 10.1177/0300060519860328. Epub 2019 Jul 26.
This study was performed to assess the changes in diameter of the superior mesenteric artery (SMA) in patients with spontaneous isolated SMA dissection (SISMAD) on nonenhanced multidetector computed tomography (MDCT) and determine the clinical value of follow-up MDCT after endovascular stent placement (ESP).
The diameters of the SMA and superior mesenteric vein (SMV) as measured on nonenhanced MDCT were compared between 20 patients with SISMAD and 20 control subjects. ESP was performed in 14 patients with SISMAD, and follow-up MDCT was performed after ESP.
The mean diameter of the SMA in the SISMAD group and control group was 11.69 ± 1.26 and 7.10 ± 0.97 mm, respectively, with a statistically significant difference. The SMA diameters were even larger than the SMV diameters. Follow-up MDCT showed stent patency in 13 patients and occlusion in 1 patient.
An enlarged diameter of the SMA on nonenhanced MDCT is an important finding for diagnosis of SISMAD, and MDCT is a valuable follow-up method after ESP for SISMAD.
本研究旨在评估自发性孤立性肠系膜上动脉夹层（SISMAD）患者在非增强多层螺旋计算机断层扫描（MDCT）上肠系膜上动脉（SMA）直径的变化，并确定血管内支架置入术（ESP）后MDCT随访的临床价值。
比较20例SISMAD患者和20例对照者在非增强MDCT上测量的SMA和肠系膜上静脉（SMV）直径。对14例SISMAD患者进行ESP，并在ESP后进行MDCT随访。
SISMAD组和对照组SMA的平均直径分别为11.69±1.26和7.10±0.97mm，差异有统计学意义。SMA直径甚至大于SMV直径。MDCT随访显示13例患者支架通畅，1例患者支架闭塞。
非增强MDCT上SMA直径增大是诊断SISMAD的重要发现，MDCT是SISMAD患者ESP后有价值的随访方法。
