关键词: ［关键词］胃肠道间质瘤, 体层摄影术, 诊断

Abstract: [Abstract] Objective To enhance the manifestation and application value of multi-slice spiral CT(MSCT) in diagnosis of gastrointestinal stromal tumors(GIST). Methods MSCT findings of 28 cases were retrospectively analyzed，diagnosed with GIST surgically and pathologically. Results Among the 28 cases，15 cases were located in stomach，7 cases in duodenum，5 cases in small intestine，1 case in lesser omentum. The application of multi-slice spiral CT reconstruction technology can clearly show 28 cases of GIST. Eighteen tumors presented round shape and other 10 had irregular margins.28 patients were verified by CT reconstruction technology，including endogenous type（n=7），exogenous type（n=4），intra- and ex-traluminal growth（n=16） and others（n=1）.Conclusion Multi-slice spiral CT imaging is of great value in the diagnosis of gastrointestinal stromal tumor.

Key words: [Key words]Gastrointestinal stromal tumors, Tomography, Diagnosis