The value of MRCP combined with DWI in T-staging of gallbladder cancer
10.3969/j.issn.1002-1671.2017.11.010
- VernacularTitle:MRCP结合DWI对胆囊癌T分期的价值
- Author:
Yan LÜ
1
;
Chunhong HU
;
Shuang LAI
;
Yongmei LI
Author Information
1. 重庆医科大学附属第一医院放射科
- Keywords:
gallbladder cancer;
magnetic resonance imaging;
diffusion weighted imaging;
apparent diffusion coefficient
- From:
Journal of Practical Radiology
2017;33(11):1688-1691
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of conventional MRI,MR cholangiopancreatography(MRCP) and diffusion weighted imaging(DWI) in T-staging of gallbladder cancer(GBC).Methods 56 patients with histologically proven GBCs were analyzed retrospectively.Staging was performed according to MR findings and compared with pathological findings.The accuracy of the two methods with or without DWI sequence was also compared.Results The accuracy of staging of conventional MRI and MRCP was 87.5％ (49/56).The sensitivity,specificity and accuracy of conventional MRI and MRCP in the stage of lesions as T1 vs ≥T2,≤T2 vs ≥T3 and ≤T3 vs T4 were 83.3 ％/98.0 ％/96.4 ％,92.3 ％/97.7 ％/96.4 ％ and 93.1％/88.8 ％/91.1％,respectively.The accuracy of staging of conventional MRI and MRCP combined with DWI was 91.1％ (51/56).The sensitivity,specificity and accuracy of conventional MRI and MRCP combined with DWI in the stage of lesions as T1 vs ≥T2,≤T2 vs ≥T3 and ≤T3 vs T4 were 83.3％/98.0％/96.4％,92.3％/97.7％/96.4％ and 93.8％/100％/96.4％,respectively.There was no statistical difference between the two groups(P＞0.05).Conclusion Conventional MRI and MRCP provides excellent T-staging accuracy for GBC.The accuracy of T-staging can be improved by conventional MRI and MRCP combining with DWI,especially for T4 stage.
