Triple modality image reconstruction of PET data using SPECT, PET, CT information increases lesion uptake in images of patients treated with radioembolization with $$^{90}Y$$ micro-spheres

EJNMMI Physics

Table 2 MHKEM/HKEM optimal parameter values for the PET data

Neighbors	5 $\times$ 5 $\times$ 5
Functional edge iterative PET $\sigma _p$	1
Functional edge SPECT $\sigma _{s}$	3
Anatomical edge CT $\sigma _{c}$	0.5
Spatial distance $\sigma _{dp}$	5

Neighbors	5 \(\times\) 5 \(\times\) 5
Functional edge iterative PET \(\sigma _p\)	1
Functional edge SPECT \(\sigma _{s}\)	3
Anatomical edge CT \(\sigma _{c}\)	0.5
Spatial distance \(\sigma _{dp}\)	5