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低剂量16层螺旋CT结肠成像对结直肠癌的诊断价值 被引量:8

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摘要 目的评价低剂量16层螺旋CT结肠成像(multislice CTcolonlgraphy,MSCT)对结直肠癌的诊断应用价值。方法对37例经临床拟诊为结直肠癌患者行结肠充气的低剂量50mAs16层螺旋CT扫描(MSCT),利用工作站的后处理软件可获得多平面重建(multiplanar reformation,MPR),三维表面遮盖显示(shaded-surface display,SSD)和透明显示像及CT仿真结肠内镜图像(CTVC)及结直肠黏膜剖开图像,将低剂量MSCT诊断结果与结直肠镜或手术病理进行对比。结果37例经手术或结直肠镜病理证实结肠癌29例和非结肠癌8例,低剂量MSCT正确诊断29例结肠癌病例(包括并发病灶及转移灶)中的28例和8例非结直肠癌中的5例,诊断的敏感度、特异度和准确度分别为:96.55%(28/29),62.5%(5/8),89.19%(33/37)。结论低剂量MSCT是安全、无创、快速、全面评价结直肠癌的方法,可以完全替代钡剂灌肠检查,是结直肠癌筛选、术前分期、预后评估及术后随诊的首选方法。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2008年第1期62-65,共4页 Chinese Journal of Gerontology
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