RESUMO
Objective To observe the value of MSCT in diagnosis of gastrointestinal foreign bodies and the resulting gastrointestinal perforations.Methods MSCT and clinical data of 30 patients with gastrointestinal foreign bodies,including 17 with gastrointestinal perforations were reviewed retrospectively.The location,morphology,density of foreign bodies,and the performances of gastrointestinal perforations were observed.Results All gastrointestinal foreign bodies could be displayed by MSCT in 30 patients.Toothpicks were the most common type of foreign bodies (12/30,40.00％),followed by fish bones (5/30,16.67％),jujube nuclei (3/30,10.00％),chicken bones (2/30,6.67％) and so on.Foreign bodies were found in small intestine in 15 patients (15/30,50.00％),in stomach in 7 (7/30,23.33％),in colon in 6 (6/30,20.00％) and in ileocecus in 2 patients (2/30,6.67％).High density foreign bodies were demonstrated on abdominal X-ray films in 11 patients (11/30,36.7 ％).Gastrointestinal perforations caused by toothpicks,fishbones and other sharp objects were observed in 14 patients (14/17,82.35 ％).Intestinal wall edema,peripheral exudation,foreign bodies "cross through the intestinal wall" and the surrounding small bubbles were found in perforation site or nearby.Conclusion MSCT can comprehensively display the location,shape and associated changes of gastrointestinal foreign bodies,with important diagnostic value for gastrointestinal perforations.