Effectiveness of Application of 3.0 Tesla High-Resolution Magnetic Resonance Imaging in T-Staging of Rectal Cancers
DAI Zheng1, 2, WEN Ge1, HU Pei-qian1,CHENG Dong-liang1,CHEN Bin1, XU Juan1
1.Department of Medical Imaging, Nanfang Hospital Affiliated to Southern Medical University, Guangzhou Guangdong 510515, China; 2.Department of Medical Imaging, No. 181 Hospital of Chinese People’s Liberation Army, Guilin Guangxi 541002, China
Abstract：Objective To explore the effectiveness of application of 3.0 Tesla high-resolution magnetic resonance imaging (HR-MRI) in T-staging of rectal cancers. Methods Altogether 51 cases of primary rectal cancers who had accepted pre-operative HR-MRI and post-operative pathological examinations were selected. Concordance and relevance were analyzed between pre-operative HR-MRI and post-operative pathological T-staging of rectal cancers. The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of each staging identified by HR-MRI were calculated. Results Strong concordance (Kappa=0.740, P<0.01) and relevance (r=0.838, P<0.01) of T-staging of rectal cancers were found between pre-operative 3.0 Tesla HR-MRI and pathological examinations. The diagnose accordance rate of HR-MRI was 84.3%. Conclusion HR-MRI had proven its effectiveness in assessment of the extent of rectal cancer extramural invasion, circumferential resection margin involvement, peritoneal involvement and adjacent organs violated. High diagnose accordance rate as well as strong concordance and relevance of T-staging of rectal cancers were revealed between pre-operative 3.0 Tesla HR-MRI and pathological examinations.
戴峥，文戈，胡培铅，成东亮，陈斌，许娟. 3.0T高分辨率MRI在直肠癌术前T分期中的应用价值[J]. 中国医疗设备, 2015, 30(9): 51-53.
DAI Zheng, WEN Ge, HU Pei-qian,CHENG Dong-liang,CHEN Bin, XU Juan. Effectiveness of Application of 3.0 Tesla High-Resolution Magnetic Resonance Imaging in T-Staging of Rectal Cancers. China Medical Devices, 2015, 30(9): 51-53.
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