Fig. 2.

Functional liver tissue defined by TcSC SPECT images in three orientations (axial, sagittal, coronal, a–c), simulated ⁹⁰Y distribution defined by TcMAA SPECT images in three orientations (d–f), and the coregistered fused SPECT images in three orientations (g–i), resulting in the definition of four different compartments: tumour (red), tumour necrosis (black), irradiated functional liver (purple), and unirradiated functional liver (blue)