TABLE 2

¹⁸F-FDG PET Values for Predetermined ROIs in Brain

	18-Gy ALL		24-Gy ALL
ROI	Mean	SD	Mean	SD	P
Lateral frontal lobe (R)	1.15	0.03	1.14	0.03	0.41
Lateral frontal lobe (L)	1.13	0.03	1.11	0.03	0.20
Medial frontal lobe (R)	1.04	0.02	1.02	0.03	0.08
Medial frontal lobe (L)	1.03	0.03	1.02	0.03	0.12
Lateral parietal lobe (R)	1.09	0.03	1.08	0.03	0.65
Lateral parietal lobe (L)	1.07	0.03	1.06	0.04	0.25
Medial parietal lobe (R)	1.07	0.03	1.07	0.04	0.69
Medial parietal lobe (L)	1.07	0.04	1.07	0.06	0.66
Occipital lobe (R)	1.14	0.04	1.16	0.05	0.20
Occipital lobe (L)	1.11	0.04	1.12	0.05	0.63
Temporal lobe (R)	1.04	0.03	1.04	0.03	0.94
Temporal lobe (L)	1.01	0.03	1.02	0.03	0.71
Parahippocampus (R)	0.72	0.04	0.74	0.03	0.11
Parahippocampus (L)	0.73	0.03	0.73	0.03	0.36
Anterior cingulate gyrus (R)	0.92	0.05	0.91	0.04	0.63
Anterior cingulate gyrus (L)	0.92	0.05	0.91	0.04	0.28
Posterior cingulate gyrus (R)	1.08	0.05	1.08	0.03	0.93
Posterior cingulate gyrus (L)	1.06	0.05	1.06	0.04	0.92
Cerebellum (R)	0.89	0.05	0.89	0.06	0.85
Cerebellum (L)	0.88	0.05	0.88	0.06	0.94
Caudate (R)	1.22	0.10	1.23	0.07	0.84
Caudate (L)	1.21	0.07	1.23	0.07	0.26
Putamen (R)	1.08	0.06	1.12	0.06	0.05
Putamen (L)	1.09	0.07	1.14	0.07	0.03
Amygdala (R)	0.63	0.04	0.65	0.05	0.20
Amygdala (L)	0.64	0.05	0.66	0.04	0.45
Thalamus (R)	1.03	0.06	1.05	0.04	0.27
Thalamus (L)	1.04	0.06	1.06	0.05	0.17

Values normalized to global PET activity.