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EJNMMI Research

Table 3 Relative rCBF grey matter measurements from PET and perfusion CT scanning normalized to white matter

From: Brain perfusion CT compared with15O-H2O-PET in healthy subjects

  

PET

COV

CT

COV

ΔCBF

 

Side

ROI

Mean ± SD

%

Mean ± SD

%

Mean ± SD

p Value

Right

Caudate nucleus

2.77 ± 0.26

9.4

3.32 ± 0.55

16.6

0.56 ± 0.40

< 0.05

 

Putamen

2.90 ± 0.30

10.4

3.39 ± 0.62

18.3

0.44 ± 0.65

NS

 

Frontal cortex

2.81 ± 0.30

10.5

3.47 ± 0.60

17.2

0.66 ± 0.52

< 0.05

 

Parietal cortex

2.56 ± 0.35

13.6

3.37 ± 0.67

19.8

0.81 ± 0.67

< 0.05

 

Occipital cortex

2.58 ± 0.34

13.3

3.17 ± 0.64

20.2

0.59 ± 0.72

NS

Left

Caudate nucleus

2.84 ± 0.33

11.6

3.24 ± 0.62

19

0.40 ± 0.45

NS

 

Putamen

2.96 ± 0.28

9.4

3.36 ± 0.66

19.7

0.37 ± 0.66

NS

 

Frontal cortex

2.94 ± 0.31

10.4

3.41 ± 0.56

16.3

0.48 ± 0.52

NS

 

Parietal cortex

2.67 ± 0.34

12.7

3.43 ± 0.64

18.5

0.76 ± 0.70

< 0.05

 

Occipital cortex

2.65 ± 0.40

15

3.12 ± 0.77

24.8

0.47 ± 0.69

NS

 

Volume weighted grey matter

2.78 ± 0.25

9.1

3.34 ± 0.48

14.3

0.56 ± 0.47

< 0.05

  1. CBF, cerebral blood flow; PET, positron-emission tomography; CT, computed tomography; ROI, region of interest; SD, standard deviation; COV, coefficient of variance; NS, non-significant. N = 12. The p values are Bonferroni-corrected.
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