The application value of DCE-MRI in the preoperative TN staging of rectal cancer
10.3969/j.issn.1002-1671.2018.12.015
- VernacularTitle:动态增强磁共振成像在直肠癌术前TN分期中的应用价值
- Author:
Zongyuan XIE
1
;
Xiangyang YU
;
Jian DONG
;
Zhibin TAN
;
Zhiqiang WANG
;
Yajing WANG
;
Hui LI
;
Tao LIU
Author Information
1. 华北理工大学附属医院磁共振室
- Keywords:
rectal cancer;
dynamic contrast-enhanced magnetic resonance imaging;
preoperative staging
- From:
Journal of Practical Radiology
2018;34(12):1878-1881
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the application of dynamic contrast-enhanced MRI (DCE-MRI)in preoperative TN staging of rectal cancer. Methods Seventy-two patients with rectal cancer confirmed by surgery and pathology underwent preoperative conventional MRI and DCE-MRI.The consistencies between conventional MRI and pathology,conventional MRI combined with DCE-MRI and pathology in diagnosing the TN staging were analyzed retrospectively.The quantitative parameters of DCE-MRI including Ktrans,Veand Kepwere measured to analyze the correlation with T staging and lymph nodes metastasis.Results The accuracy of conventional MRI and conventional MRI combined with DCE-MRI in diagnosing the T staging were 72.2% and 84.7%,respectively,in diagnosing the N staging were 65.3% and 77.8%, respectively.The DCE-MRI quantitative parameters (Ktransvalue,Vevalue and Kepvalue)were positively related to the T staging and lymph nodes metastasis(P<0.05).Conclusion DCE-MRI can improve the accuracy of the preoperative TN staging of rectal cancer. DCE-MRI quantitative parameters of Ktrans,Ve,Kepvalues can help to determine T staging and lymph node properties of rectal cancer.
