title: [Test of attenuation correction in the imaging determination of left ventricular ejection fractions by the 1st-pass method].
mesh_terms: D002302:Cardiac Output; D011756:Diphosphates; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D008961:Models, Structural; D011877:Radionuclide Imaging; D013318:Stroke Volume; D013667:Technetium; D016698:Technetium Tc 99m Pyrophosphate
chemical_list: D011756:Diphosphates; D016698:Technetium Tc 99m Pyrophosphate; D013667:Technetium