Table 1.

NMI between CT_original and CBCT_original, ${\text{CT}}_{\text{deformed}}^{\text{demons}}$ and CBCT_original, ${\text{CT}}_{\text{deformed}}^{\text{DISC}}$ and CBCT_original, and ${\text{CT}}_{\text{deformed}}^{\text{DISC}}$ and CBCT_corrected.

	Case 1	Case 2	Case 3	Case 4	Case 5	Case 6
CToriginal-CBCToriginal	0.6034	0.6053	0.5972	0.6063	0.6481	0.6194
${\text{CT}}_{\text{deformed}}^{\text{demons}}-{\text{CBCT}}_{\text{original}}$	0.6089	0.6264	0.6032	0.6092	0.6566	0.6203
${\text{CT}}_{\text{deformed}}^{\text{DISC}}-{\text{CBCT}}_{\text{original}}$	0.6160	0.6266	0.6094	0.6191	0.6720	0.6302
${\text{CT}}_{\text{deformed}}^{\text{DISC}}-{\text{CBCT}}_{\text{corrected}}$	0.6811	0.6951	0.6939	0.6990	0.7454	0.6941