Differentiation of cystic biliary atresia and choledochal cysts using prenatal ultrasonography

Lizhu Chen; Fujiao He; Kaihui Zeng; Bing Wang; Jingyu Li; Dan Zhao; Zeyu Yang; Weidong Ren

doi:10.14366/usg.21028

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자료유형: 학술저널

저자정보: Lizhu Chen (Department of Ultrasound Shengjing Hospital of China Medical University) Fujiao He (Department of Ultrasound Shengjing Hospital of China Medical University) Kaihui Zeng (Department of Ultrasound Shengjing Hospital of China Medical University) Bing Wang (Department of Ultrasound Shengjing Hospital of China Medical University) Jingyu Li (Department of Ultrasound Shengjing Hospital of China Medical University) Dan Zhao (Department of Ultrasound Shengjing Hospital of China Medical University) Zeyu Yang (Department of Ultrasound Shengjing Hospital of China Medical University) Weidong Ren (Department of Ultrasound Shengjing Hospital of China Medical University)

저널정보: 대한초음파의학회 ULTRASONOGRAPHY ULTRASONOGRAPHY Vol.41 No.1

발행연도: 2022.1

수록면: 140 - 149 (10page)

DOI: 10.14366/usg.21028

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Purpose: This study explored the performance of prenatal ultrasonography in the differential diagnosis of cystic biliary atresia (CBA) and choledochal cyst (CC).Methods: Fetuses diagnosed with hepatic hilar cyst in the second trimester were included in this study. A series of prenatal ultrasound examinations were performed in the second and third trimesters. The diameter of the gallbladder (GB) and hepatic cyst were measured, as well as the wall thickness of the GB. The GB-cyst connection, visibility of the right hepatic artery (RHA), and other concomitant abnormalities were carefully evaluated. A neonatal transabdominal ultrasound examination was performed within 1 week after birth, and clinical data were followed up to 6 months after birth.Results: Between January 1, 2016 and January 31, 2020, 53 fetuses diagnosed with hepatic hilar cyst were recruited. Eight were excluded because they were lost to follow-up. Among the 45 cases included in this study, 10 were diagnosed with CBA and 35 with CC after birth. Statistically significant differences were found in GB width, wall thickness, change in GB width, change in cyst length, GB-cyst connection, and RHA visibility between the CBA and CC groups. GB width showed the best diagnostic performance with an area under the curve (AUC) of 0.899. The combination of GB width, GB wall thickness, and GB-cyst connection yielded a comparable AUC of 0.971.Conclusion: The GB should be carefully evaluated in fetuses with hepatic hilar cyst. Prenatal ultrasound findings could provide suggestive parameters for the differential diagnosis of CBA from CC.

#Ultrasonography #Cystic biliary atresia #Choledochal cyst #Fetus #Prenatal diagnosis

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