title: Influence of technical modifications on estimation of regurgitant fraction by radionuclide ventriculography.
mesh_terms: D001022:Aortic Valve Insufficiency / Q000000981:diagnostic imaging*; D003201:Computers; D004912:Erythrocytes; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging*; D011877:Radionuclide Imaging; D013318:Stroke Volume; D013667:Technetium
chemical_list: D013667:Technetium