ABC | Volume 111, Nº2, August 2018

Original Article Marino et al 123 I-MIBG Scintigraphy in Heart Failure Arq Bras Cardiol. 2018; 111(2):182-190 Figure 4 – Dispersion graph to assess the correlation between LVEF and early HMR in CCC or non-CCC or HT patients. Early HMR: ratio of the heart/mediastinum radioactive counts estimated on 15-minute images (early uptake); LVEF: left ventricular ejection fraction. (A) CCC: chronic Chagas cardiomyopathy; (B) non-CCC: cardiomyopathy etiology other than Chagas disease; (C) HT: heart transplant. 2.5 2.0 1.5 1.0 0.5 0.0 2.5 2.0 1.5 1.0 0.5 0.0 0 10 20 30 LVEF LVEF LVEF 40 50 60 70 80 0 10 20 30 40 50 60 70 80 0 10 20 30 40 50 60 70 80 early HMR early HMR 2.5 2.0 1.5 1.0 0.5 0.0 early HMR A B C r = 0.23 (p = 0.300) r = 0.15 (p = 0.555) r = 0.46 (p = 0.023) early HMR = 1.5123 + 0.007xLVEF R 2 = 0.0496 early HMR = 1.3107 + 0.0121xLVEF R 2 = 0.2108 early HMR = 1.1641 + 0.0018xLVEF R 2 = 0.023 Figure 3 – Cardiac washout (WO%) of 123 I-MIBG in CCC or non-CCC or HT patients. Groups: CCC: chronic Chagas cardiomyopathy; non-CCC: cardiomyopathy etiology other than Chagas disease; HT: heart transplant. CCC non-CCC HT Group p = 0.577 75.00 50.00 25.00 0.00 WO% -25.00 * 186