title: Noninvasive beat to beat monitoring of left ventricular function by a nonimaging nuclear detector during premature ventricular contractions.
mesh_terms: D000328:Adult; D000368:Aged; D000818:Animals; D004285:Dogs; D004562:Electrocardiography; D006352:Heart Ventricles / Q000000981:diagnostic imaging / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D011877:Radionuclide Imaging; D012212:Rheology; D013318:Stroke Volume; D013997:Time Factors