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Updated: Jul 11, 2026

Surgical Models of Gastroesophageal Reflux with Mice
Published on: August 25, 2015
Sonographic demonstration of duodenobiliary reflux with soda enhancement
Chien-Hsien Wu1, Han-Mo Chiu, Kao-Lang Liu
1Department of Internal Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, No. 7, Chung-Shan South Road, Taipei 10016, Taiwan, Republic of China.
Abstract:
Cholangitis rarely occurs after sphincteroplasty if there is no biliary obstruction. We report the case of a patient who developed recurrent cholangitis despite having a patent biliary tract after sphincteroplasty. Duodenobiliary reflux was demonstrated on sonography after enhancement of the reflux flow with a novel oral contrast agent, a carbonated soda beverage. Sonography with contrast enhancement provided by soda solution may prove satisfactory to detect duodenobiliary reflux after sphincteroplasty safely, effectively, and economically.
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