FIGURE 1. Schematic of heart phantom showing variable-volume internal chamber filled with water and sealed, fixed-volume dual-layer wall filled with ¹⁸F-FDG. Phantom can accommodate endocardial volume ranging from 150 to 1,000 µL. Shown on right is example of systolic (300 µL) and diastolic (900 µL) images extracted by QGS analysis of simulated series of gated PET images of phantom. SA = short axis; HLA = horizontal long axis; VLA = vertical long axis.

Return to article