论文部分内容阅读
目的对照研究口服阳性对比剂与阴性对比剂对食管胃结合部（EGJ）癌术前CT扫描图像诊断的准确性。方法选择80例EGJ癌患者，随机分成2组，口服阳性对比剂（2%泛影葡胺溶液800ml）与阴性对比剂（温开水800ml）各40例，CT平扫加增强扫描，对病灶进行术前T分期的CT诊断，以术后病理结果为标准，比较两种对比剂对EGJ癌术前CT诊断的准确性。结果40例口服阳性对比剂患者中，T分期的CT诊断正确31例，错误9例，准确性77.5%；40例口服阴性对比剂患者中，T分期的C T诊断正确33例，错误7例，准确性82.5%，两者差别有统计学意义（P<0.05）。结论口服阴性对比剂在E G J癌术前C T诊断T分期的准确性高于口服阳性对比剂。“,”Objective To compare the diagnostic value of positive and negative oral contrast media in gastroesophageal junction (esophagogastric junction, EGJ) cancer on CT images. Materials and Methods 80 cases with EGJ cancers were selected and divided into 2 groups randomly. Al patients underwent CT scan after taking 800ml positive contrast media (n=40) or 800ml water (n=40). T staging diagnosis of al lesions was made on CT images. Comparison the accuracy of two contrast medias in EGJ cancer on CT images was performed, with postoperative pathology serving as the reference standard. Results In the positive contrast media group, T staging diagnosis was accurately made in 31 cases on CT images, the accuracy was 77.5%. In the negative contrast media group, T staging diagnosis was accurately made in 33 cases on CT images, the accuracy was 82.5%. The difference between two groups had statistical significance (p<0.05). Conclusions The accuracy of water is higher than that of positive contrast media. Water is superior to positive contrast media in preoperative CT diagnosis of EGJ cancer.