Magnetic resonance cholangiopancreatography digital quantitative diagnosis in the differential diagnosis of choledochal cyst type Ic
10.3760/cma.j.issn.1007-8118.2019.12.006
- VernacularTitle: 磁共振胆胰管造影数字量化诊断法在鉴别Ic型胆总管囊肿中的应用
- Author:
Chang XU
1
;
Qingbao CHENG
2
;
Xiaobing WU
2
;
Xiangji LUO
1
;
Bin LI
2
;
Chen LIU
2
;
Xiaoqing JIANG
2
Author Information
1. Department I of Biliary Tract Surgery, Eastern Hepatobiliary Surgery Hospital, Shanghai 200438, China
2. Department III of Biliary Tract Surgery, Eastern Hepatobiliary Surgery Hospital, Shanghai 200438, China
- Publication Type:Journal Article
- Keywords:
Choledochal cyst;
MRCP;
Differential diagnosis;
Digital quanlification
- From:
Chinese Journal of Hepatobiliary Surgery
2019;25(12):905-909
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study the use of MRCP digital quantitative diagnosis in the differential diagnosis of choledochal cyst type Ic.
Methods:The clinical data of 41 patients with choledochal cyst type Ic, 47 patients with distal choledochal obstruction and 43 patients with simple gallbladder stones or polyps who were treated at the Eastern Hepatobiliary Surgery Hospital, PLA Naval Medical University from January 2010 to June 2016 were retrospectively analyzed. The diameters of the common bile duct, the left and the right hepatic ducts were measured and compared.
Results:The maximum diameter of the left hepatic duct (LHD), right hepatic duct (RHD) and common bile duct (CBD) were significantly different (all P<0.05) in patients with choledochal cyst type Ic compared to patients with distal choledochal obstruction. The CBD/LHD ratio and CBD/RHD ratio were significantly larger (P<0.05). For patients with choledochal cyst type Ic, when compared with patients with simple gallbladder stones or polyps, the maximum diameter of CBD was significantly larger (P<0.05), but the maximum diameters of LHD and RHD were not significantly different (both P>0.05), while the ratios of CBD/LHD and CBD/RHD were significantly larger (P<0.05). For patients with choledochal cyst type Ic, when compared with patients with simple gallbladder stones or polyps, the maximum diameter of CBD was significantly larger (P<0.05), the maximum diameter of LHD and RHD was also significantly larger (P<0.05), while the ratios of CBD/LHD and CBD/RHD were not significantly different (P>0.05). The proportion of pancreaticobiliary maljunction (PBM) in patients with type Ic choledochal cyst was significantly higher than patients with distal choledochal obstruction and simple gallstone or polyp (P<0.05).
Conclusions:For patients with choledochal cyst type Ic, their CBD shows obvious dilation, while there is no obvious dilation in LHD and RHD. It is helpful to conduct differential diagnosis of choledochal cyst type Ic by the use of MRCP to observe the presence of PBM and to quantitatively compare the CBD/LHD and CBD/RHD ratios.
