title: Visualization of inferior vena cava reflux during ECG-gated krypton-81m study.
mesh_terms: D000328:Adult; D004562:Electrocardiography; D005260:Female; D006801:Humans; D006976:Hypertension, Pulmonary / Q000000981:diagnostic imaging; D007726:Krypton; D011868:Radioisotopes; D011877:Radionuclide Imaging; D014262:Tricuspid Valve Insufficiency / Q000000981:diagnostic imaging; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging*
chemical_list: D011868:Radioisotopes; D007726:Krypton