| 罗光华，赵衡，周宏，唐德秋，刘进才.64排CT双期增强联合MPR对T3和T4期直肠癌的诊断价值.[J].中南医学科学杂志.,2013,41(6):583-586. |
| 64排CT双期增强联合MPR对T3和T4期直肠癌的诊断价值 |
| 64-slice Multi-detector CT Added MPR Images for the Assessment ofStaging T3 and T4 Rectal Cancer |
| 投稿时间：2013-01-16 |
| DOI： |
| 中文关键词: 直肠癌 T4、T3期 多平面重建 64排CT 双期增强 |
| 英文关键词:rectal cancer T4 and T3 stage MPR 64-slice multi-detector CT double-phase enhanced |
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| 中文摘要: |
| 目的探讨64排螺旋CT双期增强联合矢状位、冠状位多平面重建(MPR)图像对T4期与T3期直肠癌的鉴别诊断价值。方法分别应用CT横断位图像及CT横断位联合MPR图像评价直肠癌T3期27例，T4期15例。选择两名固定评价者，对CT横断位图像及CT横断位联合MPR图像进行评价，比较分析两种评价方法的差异，并对两名评价者评价结果的一致性进行比较。结果与CT横断位图像比较，CT横断位联合MPR图像评价T3期、T4期直肠癌的ROC曲线下面积、敏感性、特异性及两名评价者结果一致性均明显增加，显著降低不确定分期病例数（P＜0.05）。在直肠癌阴道及子宫受侵情况的评价中，与CT横断位图像比较，CT横断位图像联合MPR图像的的符合率增加（P＜0.05）。结论双期增强CT横断位联合MPR图像能够更加准确地区分T3期、T4期直肠癌，有助于预测邻近器官受侵及侵犯范围，特别是有助于阴道及子宫受侵的诊断。 |
| 英文摘要: |
| ObjectiveTo determine the added value of multiplanar reformation(MPR) images combined with 64-slice multi-detector CT images in staging of T4 rectal cancer.Methods42 consecutive patients were pathologically confirmed T3 (n=27) or T4 tumors (n=15).Two experienced radiologists independently reviewed transverse CT images and both transverse CT and MPR images to assess tumor invasion adjacent organs.Analyses were performed to compare the difference between the two viewing modes and measure interobserver agreement.ResultsWith addition of MPR images,it led to a significant increase in the area under the ROC curve,sensitivity,specificity,and interobserver agreement,and a significant decrease in the indeterminate cases.In the evaluation of the invasions of the uterus and vagina，addition of MPR images led to a significant increase in the coincidence for both readers.ConclusionAdding MPR images to transverse CT images improves the capability for identifying T3 and T4 rectal cancer and diagnosing adjacent organ invasion,especially the uterus and vagina. |
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