Contrast-enhanced MRI sequence in the diagnosis of cholangiocarcinoma
10.3760/cma.j.issn.1007-631X.2013.11.005
- VernacularTitle:MRI增强序列对胆管细胞癌的诊断价值
- Author:
Xinlong PEI
;
Jing SU
;
Jianyu LIU
- Publication Type:Journal Article
- Keywords:
Bile duct neoplasms;
Magnetic resonance imaging
- From:
Chinese Journal of General Surgery
2013;28(11):829-832
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate contrast-enhanced MRI sequence for diagnosing cholangiocarcinoma.Methods Cholangiocarcinoma was confirmed by surgery and pathology in 17 cases,all underwent preoperative CT and MRI T1-VIBE scan with contrast-enhancement sequence.We retrospectively analyzed imaging signs in two scan methods,including lesion position,number,size,enhancement degree,expansion degree of bile duct,invasion of adjacent artery and portal vein,and portal vein tumor thrombosis.The differences on detecting lesions between two methods were compared.Results The contrast to noise ratio (CNR) between tumor and liver tissue in MRI T1-VIBE images was obviously superior to that in CT images.Peripheral lesion boundary in T1-VIBE enhanced images was clearer than CT.One hemorrhage lesion was shown in T1-VIBE images,and tumor thrombosis was visible in the left branch of portal vein in 1 case.Bile duct wall lesions in T1-VIBE enhanced images was more evident than CT in hilar cholangiocarcinoma and extrahepatic cholangiocarcinoma.The VIBE enhanced images find more lesions in 9 out of 11 multiple focus cases,compared with CT images.Conclusions Contrast-enhanced MRI T1-VIBE sequence can give more comprehensive and clear evaluation on cholangiocarcinoma,and has important clinical diagnostic values.
