Fig. 5.

SPECT images of the phantom filled with a ^99mTc solution (top) and ¹²³I solution (bottom) in the grey matter compartment and a K₂HPO₄ solution in the bone compartment. Both images are aligned to the digital design shown in Fig. 4. SPECT images of the phantom filled with a ^99mTc solution (top) and ¹²³I solution (bottom) in the grey matter compartment and a K₂HPO₄ solution in the bone compartment. Both images are aligned to the digital design shown in Fig. 4