关键词: 胃肠道穿孔, 多层螺旋CT, 位置

Abstract: 【Abstract】〓Objective〓To evaluate the diagnostic value of multi-slice spiral CT (MSCT) in gastrointestinal tract perforation..Methods〓MSCT findings of 25 patients with surgically and patholo-gically proved gastrointestinal tract perforation were reviewed retrospectively..Multiplanar reformation was performed in all patients..The imaging signs,.diagnosis and localization capability of MSCT were analyzed..Results〓Among the 25 patients,.perforation of stomach/duodenum were found in 18 patients,.jejunoileum in 2 patients,.colon in 3 patients,.appendix in 2 patients..The presence of perforation was correctly diagnosed in 100% (25/25) of the patients on MSCT,.and perforation location was correctly diagnosed in 96% (24/25) of the patients before surgery..CT direct sign of perforation was discontinuity of gastrointestinal wall.in 12 patients (48%)..Indirect signs of perforation included intraperitoneal free air in 23 patients(92%), inflammation change around the perforated site in 25 patients(100%), ascites in 12 patients (48%), thickening of the gastrointestinal wall in 13 patients (52%), lesser sac effusion in 3 patients (12%), appendix abscess in 2 patients (8%), diffuse peritonitis in 2 patients (8%). Conclusion〓MSCT is of high value for correct diagnosis of gastrointestinal perforation and detecting the perforation location, and helpful for surgical treatment.

Key words: Gastrointestinal tract perforation, Multi-slice CT, Location