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

Abstract

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

CLC Number:

R445.2

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

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