EJNMMI Physics

Table 2 CBF, OEF, and CMRO ₂ values in Group-1 calculated applying the transmission- and emission-based attenuation correction

From: Applicability of emission-based attenuation map for rapid CBF, OEF, and CMRO₂ measurements using gaseous ¹⁵O-labeled compounds

		Contra-lateral hemisphere		Ipsi hemisphere
		Transmission	Emission	Transmission	Emission
CBF (ml/min/g)	Parietal	0.43 ± 0.10	0.40 ± 0.07	0.42 ± 0.07	0.38 ± 0.05
	Frontal	0.44 ± 0.07	0.45 ± 0.08	0.39 ± 0.04	0.41 ± 0.05
	Temporal	0.45 ± 0.05	0.47 ± 0.04	0.43 ± 0.06	0.46 ± 0.05*
	Occipital	0.46 ± 0.04	0.42 ± 0.04*	0.44 ± 0.08	0.40 ± 0.07*
	Cerebellum	0.54 ± 0.08	0.55 ± 0.07	0.54 ± 0.09	0.56 ± 0.07
	White matter	0.22 ± 0.05	0.23 ± 0.04*	0.24 ± 0.04	0.25 ± 0.04
OEF	Parietal	0.46 ± 0.03	0.45 ± 0.03	0.44 ± 0.05	0.44 ± 0.05
	Frontal	0.44 ± 0.03	0.44 ± 0.03	0.47 ± 0.04	0.47 ± 0.04
	Temporal	0.42 ± 0.03	0.43 ± 0.04	0.44 ± 0.03	0.45 ± 0.03
	Occipital	0.47 ± 0.03	0.46 ± 0.03*	0.46 ± 0.04	0.45 ± 0.04*
	Cerebellum	0.48 ± 0.03	0.49 ± 0.04	0.48 ± 0.04	0.49 ± 0.04
	White matter	0.44 ± 0.04	0.44 ± 0.04	0.43 ± 0.06	0.43 ± 0.06
CMRO₂ (ml/min/g)	Parietal	0.032 ± 0.006	0.029 ± 0.004*	0.030 ± 0.005	0.027 ± 0.005*
	Frontal	0.031 ± 0.007	0.032 ± 0.007	0.030 ± 0.005	0.031 ± 0.006
	Temporal	0.031 ± 0.003	0.032 ± 0.003	0.031 ± 0.003	0.033 ± 0.003
	Occipital	0.035 ± 0.002	0.030 ± 0.002*	0.033 ± 0.005	0.029 ± 0.004*
	Cerebellum	0.042 ± 0.003	0.043 ± 0.006	0.042 ± 0.005	0.043 ± 0.002
	White	0.016 ± 0.004	0.016 ± 0.003	0.016 ± 0.001	0.017 ± 0.001

Values are presented as means ± SD. *Significant difference (p < 0.05) between the transmission- and emission-based methods.

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