Diagnostic efficiency of abdominal CT,B-ultrasound and magnetic resonance cholangiopancreatography for calculus of extrahepatic bile duct
Objective:To compare diagnostic efficiency of abdominal CT,B-ultrasound and magnetic resonance cholangiopancreatography for calculus of extrahepatic bile duct.Methods:A prospective study was conducted on 100 patients with suspected calculus of extrahepatic bile duct admitted to this hospital from May 2021 to May 2022.Abdominal CT,B-ultrasound and magnetic resonance cholangiopancreatography were performed in all patients.Using the results of endoscopic retrograde cholangiopancreatography as the gold standard,the results of three examination methods in the diagnosis of calculus of extrahepatic bile duct were statistically analyzed.Further,the diagnostic efficiencies for calculus of extrahepatic bile duct,the detection rate for the calculus with diameter of≤8 cm and the examination time were compared.Results:In the 100 patients with suspected calculus of extrahepatic bile duct,endoscopic retrograde cholangiopancreatography showed that 91 cases were positive and 9 cases were negative;abdominal CT examination showed that 88 cases were positive and 12 cases were negative;abdominal B-ultrasound examination showed that 83 cases were positive and 17 cases were negative;and magnetic resonance cholangiopancreatography showed that 90 cases were positive and 10 cases were negative.There were no significant differences in the sensitivity,specificity and accuracy of abdominal CT and B-ultrasound in the diagnosis of calculus of extrahepatic bile duct(P>0.05).The sensitivity and the specificity of magnetic resonance cholangiopancreatography in the diagnosis of calculus of extrahepatic bile duct were higher than those of abdominal B-ultrasound,the accuracy was higher than that of abdominal CT and B-ultrasound,and the differences were statistically significant(P<0.05).The detection rate of magnetic resonance cholangiopancreatography for the calculus with diameter of≤8 cm was higher than that of abdominal CT and B-ultrasound,and the difference was statistically significant(P<0.05).Further,the examination time of magnetic resonance cholangiopancreatography was longer than that of abdominal CT and B-ultrasound,and the difference was statistically significant(P<0.05).Conclusions:The diagnostic efficiency of magnetic resonance cholangiopancreatography for calculus of extrahepatic bile duct is higher than that of CT and B-ultrasound,but the examination time is relatively long.
Calculus of extrahepatic bile ductMagnetic resonance cholangiopancreatographyAbdominal CTAbdominal B ultrasoundExaminationDiagnosisEfficiency
NETL
NSTL
万方数据
维普
