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Bland-Altman analysis showing (1) a high agreement between all planar methods for the measurement of the heart-to-background (H:B) uptake ratio (a-c) and (2) an underestimation of the high H:B uptake ratio using planar methods as shown by the increased difference between 3D-H:B and planar H:B ratios for high H:B ratio values (d–f). WB, whole-body H:B; Ant, anterior planogram H:B; LAO, left anterior oblique planogram H:B
