多层螺旋CT对结肠癌的诊断价值

Value of multi-slice spiral CT in the diagnosis of colon cancer

目的探讨多层螺旋CT(MSCT)对结肠癌的诊断价值。方法对检查中的36例疑为结肠癌的患者行低张水或3%泛影葡胺充盈结肠,进行MSCT平扫及增强扫描,以横断面为主,结合多平面重组(MPR),观察肿瘤部位、形态、大小及周围侵犯及转移情况,作出诊断及分期,并与术后病理对照。结果乙状结肠5例,升结肠12例,横结肠6例,降结肠8例,盲肠5例;大体病理呈息肉型或肿块型18例,溃疡型6例,浸润型或狭窄型12例。术前诊断与术后结果符合率100%。术前CT分期与术后分期总符合率91.1%。结论 MSCT在结肠癌检查中具有独特的优越性,是一种快速、安全、无创伤且较准确的检查方法。

Objective To explore the value of multi--slice spiral CT （MSCT） in the diagnosis of colon cancer. Methods 36 patients with suspected colon cancer were subjected to hypotonic water or 3 % diatrizoate filling of colon and then under- went unenhanced and enhanced MSCT. By mainly examining the cross-section in combination with multiplanar reconstruc- tion （MPR）, we observed the tumor location, shape, size, movement, and the status of adjacent tissues and metastasis. Subsequently, we made diagnosis and staging and finally, compared the imaging data with pathological findings. Results We found that 5 cases were located in sigmoid colon, 12 cases in ascending colon, 6 cases in transverse colon, 8 cases in descending colon, and 5 cases in caecum. Gross pathological examination showed that 18 cases were polyp or tumor type, 6 cases were ulcer type, and I2 cases were infiltration or narrow type. The concordant rate of preoperative findings and postoperative results in the diagnosis was 100%. The accordance between the preoperative CT staging and postoperative stages was 91.1%. Conclusion MSCT possesses a unique advantage in the examination of colon cancer and represents a fast, safe, non-invasive and more accurate method.