关键词: 肠梗阻, 计算机体层摄影血管造影术, 诊断

Abstract: Objective  To explore the application and diagnostic value of multi-slice spiral CT angiography(CTA) in patients with acute intestinal obstruction (AIO). 
Methods  A total of 90 patients with AIO were selected as the research subjects, including 34 cases of mechanical intestinal obstruction, 29 cases of dynamic intestinal obstruction and 27 cases of hemovascular intestinal obstruction confirmed by operation. All patients were given X-ray plain film, CT plain scan and CTA examination, and surgical results were taken as the “gold standard” to analyze the diagnostic efficacy of X-ray plain film, CT plain scan and CTA examination. 
Results  There was statistical significance in the detection rate of different causes of intestinal obstruction by the three diagnostic methods(P＜0.05). The detection rate of mechanical intestinal obstruction and acute blood-transporting intestinal obstruction by CTA was higher than that by X-ray plain film, and the difference was statistically significant(P＜0.05). The sensitivity, specificity and accuracy of CT plain scan and CTA in the diagnosis of AIO were higher than those of X-ray plain film. The sensitivity, specificity and accuracy of CTA in the diagnosis of AIO were higher than those of CT plain scan, and the difference was statistically significant(P＜0.05). 
Conclusion  CTA has a high detection rate and good diagnostic efficiency in the diagnosis of AIO, which is of high value in clinical popularization.

Key words: intestinal obstruction, computed tomography angiography, diagnosis