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EJNMMI Physics

Table 3 CBF, OEF, and CMRO 2 values in Group-2 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

0.45 ± 0.17

0.42 ± 0.14*

0.39 ± 0.16

0.36 ± 0.14*

Frontal

0.44 ± 0.15

0.46 ± 0.17

0.36 ± 0.16

0.37 ± 0.16

Temporal

0.48 ± 0.18

0.48 ± 0.18

0.40 ± 0.13

0.40 ± 0.13

Occipital

0.47 ± 0.14

0.42 ± 0.11*

0.44 ± 0.13

0.39 ± 0.12*

Cerebellum

0.51 ± 0.17

0.48 ± 0.17

0.56 ± 0.15

0.53 ± 0.16

White matter

0.23 ± 0.07

0.24 ± 0.07

0.19 ± 0.05

0.20 ± 0.05

OEF

Parietal

0.48 ± 0.08

0.48 ± 0.09

0.52 ± 0.09

0.51 ± 0.09*

Frontal

0.47 ± 0.07

0.48 ± 0.07

0.53 ± 0.13

0.53 ± 0.13

Temporal

0.46 ± 0.08

0.46 ± 0.08

0.50 ± 0.10

0.50 ± 0.09

Occipital

0.48 ± 0.07

0.47 ± 0.08

0.51 ± 0.08

0.50 ± 0.08*

Cerebellum

0.50 ± 0.07

0.50 ± 0.06

0.50 ± 0.06

0.49 ± 0.05

White matter

0.47 ± 0.10

0.48 ± 0.10*

0.54 ± 0.14

0.54 ± 0.13

CMRO2 (ml/min/g)

Parietal

0.035 ± 0.017

0.032 ± 0.014*

0.032 ± 0.017

0.029 ± 0.013*

Frontal

0.033 ± 0.013

0.034 ± 0.015

0.029 ± 0.013

0.030 ± 0.012

Temporal

0.035 ± 0.015

0.035 ± 0.014

0.032 ± 0.014

0.032 ± 0.012

Occipital

0.035 ± 0.011

0.031 ± 0.008*

0.036 ± 0.014

0.030 ± 0.010*

Cerebellum

0.040 ± 0.012

0.037 ± 0.011

0.044 ± 0.012

0.041 ± 0.011

White matter

0.017 ± 0.005

0.018 ± 0.006*

0.016 ± 0.005

0.016 ± 0.005

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