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结直肠癌的低剂量螺旋CT分期与病理对照研究 被引量:1

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摘要 目的探讨低剂量多层螺旋CT(LDMSCT)结肠成像对结直肠癌分期的临床意义。方法采用50 mAs LDMSCT扫描法对33例结肠癌进行术前分期,并与术后病理分期进行诊断性实验分析。结果LDMSCT术前T分期的准确度为75.7%(25/33),对局限于黏膜肌层肿瘤的阳性预测(PPV)为63.6%,对浸润浆膜层及突破浆膜肿瘤的阴性预测(NPV)为86.4%。LDMSCT术前N分期的敏感度为85.71%(18/21),N分期阳性诊断准确度为83.3%(15/18)。结论LDMSCT能够预测结肠癌,对结直肠癌能进行准确的术前分期;但对早期病变T分期还有一定限度,准确N分期必须结合肿瘤大小、形态及其生物学行为进行全面的判断。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2006年第4期481-483,共3页 Chinese Journal of Gerontology
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