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目的分析CT和超声内镜在诊断胃肠道间质瘤中的临床价值。方法回顾性分析64例术后经病理及免疫组化确诊为GIST患者的临床资料，观察术前彩超、CT、胃镜和超声内镜检查时肿瘤检出率及GIST诊断符合率。结果术后确诊的64例GIST患者中，术前检查33例，肿瘤检出率54.55%(18/33)，GIST诊断符合率3.03%(1/33)；CT检查56例，肿瘤检出率94.64%(53/56)，GIST诊断符合率60.71%(34/56)；胃镜检查40例，肿瘤检出率90.00%(36/40)，诊断符合率37.50%(15/40)，超声内镜检查9例，肿瘤检出率、诊断符合率均为100%(9/9)。结论 CT和EUS均能有效检出和诊断胃肠道间质瘤，EUS检出率和诊断符合率更高，可作为术前诊断GIST的首选方法。“,”Objective To analyze the clinical value of CT and endoscopic ultrasonography in diagnosis of gastrointestinal stromal tumor. Methods Aretrospective analysis of 64 cases of postoperative pathology and immunohistochemistry confirmed by clinical data of patients with gist were observed preoperative color Doppler ultrasound, CT, endoscopy and endoscopic ultrasonography tumor detection rate and diagnosis of GIST coincidence rate. Results Postoperative diagnosis of 64 cases of GIST patients, preoperative examination of 33 cases, the tumor detectable rate of 54.55% (18 / 33), the diagnosis of GIST with rate 3.03% (1 / 33); 56 cases were examined with CT, the tumor detectable rate 94.64% 53/56. Diagnosis of GIST with rate of 60.71% 34/56;gastroscopy in 40 cases, tumor detection rate of 90.00%(36 /40), the diagnostic accordance rate was 37.50%(15/40), 9 cases of endoscopic ultrasonography, tumor detection rate and diagnostic coincidence rate was for 100%(9/9). Conclusion Both CT and EUS can ef ectively detect and diagnose gastrointestinal stromal tumor, and the diagnostic rate of EUS is higher, and it can be used as the first choice for preoperative diagnosis of GIST.