title: Evaluation of techniques for assessing portosystemic shunt patency.
mesh_terms: D000641:Ammonia; D000792:Angiography; D001466:Barium Sulfate; D004947:Esophagus / Q000000981:diagnostic imaging; D006801:Humans; D011168:Portal System / Q000000981:diagnostic imaging; D011170:Portasystemic Shunt, Surgical; D011183:Postoperative Complications / Q000175:diagnosis; D013395:Sucrose
chemical_list: D001466:Barium Sulfate; D013395:Sucrose; D000641:Ammonia