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. Author manuscript; available in PMC: 2013 Jul 7.
Published in final edited form as: Phys Med Biol. 2010 Apr 19;55(9):2761–2788. doi: 10.1088/0031-9155/55/9/022

Figure 2.

Figure 2

The simulated model for system NEC and resolution studies. A hot spherical heart with a 10 cm diameter and a warm torso of dimensions of 30 × 20 × 30 cm3 are adjacent to breast phantom. The breast phantom fills in the space between two panels and is not shown. The center of the heart phantom and the center of the breast phantom have the same Z value but are separated by 13 cm along the Y direction. This implies that the hot heart extends to within 2 cm of the edge of the panels. The center of the torso phantom and the center of the breast phantom have the same Z value but are separated by 7.5 cm along the X direction. For the NEC studies, the panel separation was 4 cm and the activity concentration ratio assumed for breast–heart–torso was 1:10:1.