| 高分辨率MRI、DWI序列对直肠癌术前TN分期的价值 |
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| 引用本文： | 刘影,张茜.高分辨率MRI、DWI序列对直肠癌术前TN分期的价值[J].中国临床保健杂志,2014(5):498-501. |
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| 作者姓名： | 刘影 张茜 |
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| 作者单位： | 安徽医科大学附属省立医院、安徽省立医院影像科,合肥,230001 |
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| 基金项目： | 安徽省自然基金面上项目 |
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| 摘 要： | 目的探讨高分辨率MRI(HR-MRI)、DWI序列对直肠癌术前分期的价值。方法回顾性分析28例直肠癌患者MR资料,辨识TME相关结构,常规序列及其结合HR-MRI、DWI序列分别对直肠癌患者进行TN分期并与病理结果对照。结果结合HR-MRI、DWI序列对直肠癌T1-T4分期的准确率分别为96.43%,85.71%,92.86%及100%;N分期准确率82.14%,灵敏度为87.5%,约登指数0.625,均较常规序列的0.458高,两者具有统计学差异(P值=0.012)。结论 HR-MRI和DWI序列相结合可提高术前T、N分期的准确性。
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| 关 键 词： | 直肠肿瘤 肿瘤分期 磁共振波谱学 |
Value of HR-MRI and DWI in preoperative staging of rectal cancer |
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| LIU Ying,ZHANG Qian.Value of HR-MRI and DWI in preoperative staging of rectal cancer[J].Chinese JOurnal of Clinical Healthcare,2014(5):498-501. |
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| Authors: | LIU Ying ZHANG Qian |
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| Institution: | ( Department of Radiology ,Anhui Medical University Affiliated Provincial Hospital ,Hefei 230001, China) |
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| Abstract: | Objective To explore the value of HR-MRI,DWI sequence in preoperative staging of rectal cancer. Methods Retrospective analysis MRI of 28 patients with rectal cancer,identify TME related structures,using conventional sequence and its combination of HR-MRI,DWI sequence for TN-staging in patients with rectal cancer and comparison with the pathological results. Results Combined with HR-MRI,DWI sequence,the accuracy of T1 staging was 96. 43%,T2 was 85. 71%,T3 was 92. 86% and T4 was 100%,and the accuracy of N staging was82. 14%,the sensitivity was 87. 5% and Youden index was 0. 625. these parameters were obviously higher than these of the conventional sequence（ P = 0. 012）. Conclusion Combined with HR-MRI,DWI can obviously improve the accuracy of the preoperative T and N stage. |
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| Keywords: | Rectal neoplasms Neoplasm staging Magnetic resonance spectroscopy |
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