常规MRI联合弥散加权成像对直肠癌T分期诊断价值

doi:10.11904/j.issn.1002-3070.2015.05.004

实用肿瘤学杂志 ›› 2015, Vol. 29 ›› Issue (5): 400-403.doi: 10.11904/j.issn.1002-3070.2015.05.004

常规MRI联合弥散加权成像对直肠癌T分期诊断价值

王琪璠¹, 张修石¹, 于友涛², 张红霞¹, 于秋杰¹

1.哈尔滨医科大学附属肿瘤医院影像中心(哈尔滨 150081);
2.解放军总医院第一附属医院介入科

收稿日期:2015-05-28 出版日期:2015-10-28 发布日期:2015-10-30
通讯作者: 张修石,E-mail:xiushiz@126.com
作者简介:王琪璠,女,(1987-),硕士研究生,从事影像医学与核医学的研究
基金资助:
哈尔滨科技创新人才研究专项资金项目(2010RFXQS027)

Diffusion weighted imaging combined with magnetic resonance imaging to diagnose the T-staging of rectal cancer

WANG Qifan¹, ZHANG Xiushi¹, YU Youtao², ZHANG Hongxia¹, YU Qiujie¹

1.Department of Radiology,The Affiliated Tumor Hospital of Harbin Medical University,Harbin 150081,China;
2.Department of Inerventional Radiology,The First Affiliated Hospital of the Chinese PLA General Hospital

Received:2015-05-28 Online:2015-10-28 Published:2015-10-30

摘要/Abstract

摘要： 目的探讨常规核磁共振(Magnetic resonance imaging,MRI)联合弥散加权成像(Diffusion weighted imaging,DWI)在直肠癌术前T分期的诊断价值。方法对107例经病理证实为直肠腺癌患者行回顾性分析,分别运用常规MRI序列、常规MRI联合DWI序列对直肠癌进行术前T分期,于检查后1周内行手术治疗并取得病理结果,将影像检查结果与术后病理结果对照,比较两种方法对直肠癌术前T分期诊断的准确性。结果 107例患者中,常规MRI检查诊断直肠癌T分期的准确率为84.11%(90/107),与病理T分期间一致性检验较好(Kappa=0.652,P＜0.001);常规MRI+DWI检查诊断直肠癌术前T分期的准确性为90.65%(97/107),与病理学T分期间一致性检验较好(Kappa=0.732,P＜0.001)。结论与常规MRI序列相比,常规MRI联合DWI诊断直肠癌T分期准确性更高,可为临床提供较合理的治疗方案。

关键词: 直肠癌, 核磁共振, 弥散加权成像, T分期

Abstract: Objective To assess the efficacy of diffusion weighted imaging(DWI)with Magnetic Resonance Imaging to predict the T-staging in rectal cancer.Methods One hundred and seven cases confirmed by pathology of rectal adenocarcinoma patients were retrospectively analyzed.T-staging was determined by MRI and DWI combined with MRI.All the patients were underwent surgery within one week after MRI.We compared the Results with the pathological T-staging after surgery,and compared the two Methods of the preoperative T-staging rectal cancer diagnosis accuracy.Results The accurate rates for T-staging of rectal cancer using MRI was 84.11%(90/107).There was a correlation between the result of preoperative MRI and postoperative pathological T-staging(kappa=0.652,P＜0.001);The accurate rates for T-staging of rectal cancer using combined MRI with DWI was 90.65%(97/107).There was a better correlation between the result of MRI with DWI and postoperative pathological T-staging(kappa=0.732,P＜0.001).Conclusion Compared with the conventional MRI sequences,the accuracy of MRI combined with DWI for diagnosis of T-staging in rectal carcinoma is higher.It can provide a more reasonable treatment.

Key words: Rectal cancer, Magnetic resonance imaging, Diffusion-weighted imaging, T-staging

中图分类号:

R445.2

王琪璠, 张修石, 于友涛, 张红霞, 于秋杰. 常规MRI联合弥散加权成像对直肠癌T分期诊断价值[J]. 实用肿瘤学杂志, 2015, 29(5): 400-403.

WANG Qifan, ZHANG Xiushi, YU Youtao, ZHANG Hongxia, YU Qiujie. Diffusion weighted imaging combined with magnetic resonance imaging to diagnose the T-staging of rectal cancer[J]. PRACTICAL ONCOLOGY JOURNAL, 2015, 29(5): 400-403.

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常规MRI联合弥散加权成像对直肠癌T分期诊断价值

Diffusion weighted imaging combined with magnetic resonance imaging to diagnose the T-staging of rectal cancer

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