title: [Simple method to estimate cardiac output using first-pass data on RI angiography].
abstract: In order to estimate cardiac output (CO) without using data equilibrium state, a simple index (cardiac output index, COI) was developed from the first-pass data as a ratio of the integrated radioactivity on the right ventricle to the total injected radioactivity. COI was well correlated with CO calculated by the conventional Stewart-Hamilton method (r = 0.894, p < 0.01), and thus, CO could be readily estimated from COI. This index might be useful to estimate CO since it can be obtained even with the agents which distribute to organs.
authors.affiliation: Section of Nuclear Medicine, Noto General Hospital.
authors.forename: Y
authors.initials: Y
authors.lastname: Miyazaki
authors.forename: S
authors.initials: S
authors.lastname: Kinuya
authors.forename: N
authors.initials: N
authors.lastname: Tonami
mesh_terms: D019797:3-Iodobenzylguanidine; D000368:Aged; D002302:Cardiac Output; D005227:Fatty Acids; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging*; D006801:Humans; D007457:Iodine Radioisotopes; D007462:Iodobenzenes; D008297:Male; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging / Q000503:physiopathology; D015646:Ventriculography, First-Pass
chemical_list: D005227:Fatty Acids; D007457:Iodine Radioisotopes; D007462:Iodobenzenes; C049338:iodofiltic acid; D019797:3-Iodobenzylguanidine