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目的探讨大肠充气法16排CT成像在大肠病变检查中的临床价值。方法 57例疑诊大肠病变患者完成大肠充气法16排CT三期增强扫描(对比剂开始注射后25s、48～50s、58s),采用Neusoft16扫描仪,在工作站完成CT仿真内镜、多平面重组、容积重建等后处理观察,并与肠镜或手术病理对照。结果 CT检出大肠病变46例,误漏诊5例,诊断敏感度93.3%,特异度73.3%,准确率91.2%,阳性预测值95.5%,阴性预测值76.9%。结论大肠充气法16排CT成像有较高的大肠病变定性定位诊断准确率,值得推广。
Objective To investigate the clinical value of 16-slice CT imaging of colorectal gas in the examination of colorectal lesions. Methods Fifty-seven patients with suspected colorectal disease underwent colorectal gastrocampics 16-slice CT three-phase contrast-enhanced scan (25s, 48-50s, 58s after the start of contrast agent injection). Neusoft16 scanner was used to complete CT simulation endoscopy and multiplanar reorganization , Volume reconstruction and other post-treatment observation, and enteroscopy or surgical pathology control. Results CT was detected in 46 cases of colorectal lesions and 5 cases were misdiagnosed. The diagnostic sensitivity was 93.3%, the specificity was 73.3%, the accuracy was 91.2%, the positive predictive value was 95.5% and the negative predictive value was 76.9%. Conclusion Colorectal gas filling method of 16 rows of CT imaging has a higher diagnostic accuracy of colorectal lesions localization, it is worth promoting.