Analysis Of The Clinical And Imaging Data About Hepatic Hydatid Cyst With Biliary Fistulain

Objective:To provide some images for diagnosis of hepatic cystic echinococcosis with biliary fistula basis by analyzing clinical and imaging data of hepatic hydatid disease of imaging,exploring the factors related to the occurrence of biliary fistula of hepatic cystic echinococcosis.Methods:Collect 176 cases of cystic echinococcosis those were received surgery and underwent preoperative imaging examination including CT and MRI from 2013 to2016.According to the operation result,there were 68 cases with biliary fistula group and 108 cases without biliary fistula,analysing data of biliary fistula group to provide images for diagnosis of biliary fistula.Statistics 7 risk factors of biliary fistula to determine the independent risk factors by univariate and multivariate variance.Results: In 176 cases,68 cases with biliary fistula confirmed by surgery,16 cases were diagnosed by CT,show the direct traffic between the bile duct and lesions or dilated bile duct.Of the 47 cases of biliary fistula examined by MRI,20 cases showed biliary fistula.the 4 cases without biliary fistulahe in CT,MRCP showed small lesions around the bile duct,and the local bile duct was not developed.Analysing the preoperative imaging data of bile fistula,found that conventional imaging examination could not find the related features of biliary fistula.We Focus on the part of the cystic fluid ADC measurement;a biliary fistula and biliary fistula group ADC =(2.89 + 0.97)* 10-3mm2/s(3.11 + 0.83)* 10-3mm2/s,The difference of ADC value between groups was statistically significant(P < 0.001).An analysis of variance was made on factors that might cause biliary fistula:primary or recurrent hydatid cyst,lesion size,lesion i.n the liver,there was difference between the 3 groups of data.gender,age,history of hepatitis and type are not factors of biliary fistula,and the statistical significance of univariate analysis was included in the logistic regression analysis showed that the total diameter larger cysts,located in the central section of the liver are the lonely factors.Each increase of hydatid cyst diameter total biliary fistula occurred almost 10 cm The rate increased 6.395 times,The cyst is located in the central segment of the liver and increases the risk of biliary fistula by 3.965 fold compared with the peripheral segment.Conclusion:The diagnostic value of biliary fistula is limited,the conventional imaging is not specific,MRCP can display clearly,diffusion weighted imaging has a certain diagnostic value,the biliary fistula has independent risk factors,understanding these risk factors contribute to the clinical choice,reducing the complications of biliary fistula rate in some extent.