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FIGURE 3. Correlation analysis of LVEF estimated with QGS (A) and 4D-MSPECT (C) from gated 18F-FDG PET and cMRI. Bland-Altman plots compare QGS versus cMRI (B) and 4D-MSPECT versus cMRI (D). 4DM = 4D-MSPECT; gFDG-PET and gPET = gated 18F-FDG PET.