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Table 1 Ratio of five ROIs over the cerebellum for 20 min-scans

From: In vivo quantification of the [11C]DASB binding in the normal canine brain using positron emission tomography

Scanning time (min) Raphe nuclei Thalamus Basal ganglia Frontal cortex Occipital cortex Mean SE
0 to 20 1,51 ± 0,07 1,64 ± 0,06 1,32 ± 0,05 1,15 ± 0,03 1,09 ± 0,005 0.045
10 to 30 1,93 ± 0,06 2,02 ± 0,06 1,63 ± 0,05 1,31 ± 0,02 1,07 ± 0,003 0.042
20 to 40 2,37 ± 0,05 2,40 ± 0,04 1,95 ± 0,04 1,45 ± 0,02 1,05 ± 0,01 0.031
30 to 50 2,73 ± 0,04 2,69 ± 0,04 2,19 ± 0,03 1,53 ± 0,01 1,03 ± 0,01 0.026
40 to 60 3,00 ± 0,04 2,89 ± 0,03 2,36 ± 0,03 1,57 ± 0,01 1,01 ± 0,01 0.025
50 to 70 3,19 ± 0,04 2,99 ± 0,04 2,45 ± 0,03 1,57 ± 0,02 1,00 ± 0,01 0.029
60 to 80 3,32 ± 0,05 3,10 ± 0,04 2,55 ± 0,04 1,59 ± 0,02 1,00 ± 0,01 0.034
70 to 90 3,20 ± 0,07 3,03 ± 0,05 2,49 ± 0,06 1,58 ± 0,03 1,02 ± 0,02 0.046
  1. The values of the five ROIs correspond to the mean values of the five experiments ± standard error. Except for the raphe nuclei (in the sagittal plane), the mean values of the right and left sides were taken for the four other regions
  2. The standard error (SE) was the lowest for the values between 40 and 60 min of scanning, which was therefore determined as the optimal time interval
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