Radionuclide assessment of right ventricular ejection fraction: a comparison of first pass studies with 133Xe and 99Tcm.
Right ventricular ejection fraction (RVEF) was determine in 26 patients using the first pass radionuclide angiocardiography with 133Xe and 99Tcm as tracers. A good correlation (r = 0.88) was found. Duplicate determinations in 13 patients with 133Xe showed good reproducibility, the absolute value for the standard error of a single determination being 2.6% and the coefficient of variation 5.7%. In a reference group of 17 individuals RVEF was 49 +/- 5% (range 42-61%). It is concluded that 133Xe can be used for RVEF determinations. Due to the rapid elimination and the low radiation dose 133Xe is preferable when repeated determinations of RVEF are desired.
D000328:Adult; D002302:Cardiac Output; D006321:Heart / Q000000981:diagnostic imaging* / Q000503:physiopathology; D006331:Heart Diseases / Q000000981:diagnostic imaging; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008171:Lung Diseases / Q000000981:diagnostic imaging; D008875:Middle Aged; D011877:Radionuclide Imaging; D013670:Sodium Pertechnetate Tc 99m; D013318:Stroke Volume; D013667:Technetium; D014980:Xenon Radioisotopes
D014980:Xenon Radioisotopes; D013667:Technetium; D013670:Sodium Pertechnetate Tc 99m