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Table 1 Original ppIF-derived VT calculated over various intervals versus original ppIF-derived VT calculated using the 90-min datasets, via voxelwise SA

From: Simplifying [18F]GE-179 PET: are both arterial blood sampling and 90-min acquisitions essential?

  0–60 min 0–70 min 0–80 min 0–90 min
Mean ± SD ρ % Mean ± SD ρ % Mean ± SD ρ % Mean ± SD
Cerebelli 9.3 ± 2.4 1.00 − 6.7 9.6 ± 2.5 1.00 − 4.4 9.8 ± 2.5 1.00 − 2.2 10.0 ± 2.5
Hippocampi 9.6 ± 1.8 0.98 − 14.1 10.2 ± 2.0 0.99 − 9.0 10.8 ± 2.1 1.00 − 3.9 11.2 ± 2.2
Occipital lobes 9.9 ± 2.4 0.98 − 8.3 10.2 ± 2.5 0.98 − 5.1 10.5 ± 2.5 1.00 − 2.4 10.7 ± 2.5
Parahippocampal gyri 8.5 ± 2.0 0.98 − 13.8 9.0 ± 2.1 0.99 − 8.8 9.5 ± 2.2 0.99 − 4.1 9.9 ± 2.3
Putamina 11.7 ± 2.6 0.99 − 7.3 12.1 ± 2.7 1.00 − 4.7 12.4 ± 2.8 1.00 − 2.2 12.7 ± 2.9
Superior frontal gyri 9.4 ± 2.2 0.97 − 8.2 9.7 ± 2.3 0.98 − 5.5 10.0 ± 2.3 0.99 − 2.7 10.3 ± 2.3
Thalami 11.4 ± 2.4 0.97 − 10.1 11.9 ± 2.6 0.98 − 6.2 12.3 ± 2.6 0.99 − 2.9 12.7 ± 2.7
Seven pooled ROIs 10.0 ± 2.5 0.98 CI
(0.97–0.99)
− 9.8 10.4 ± 2.6 0.99 CI
(0.98–0.99)
− 6.2 10.7 ± 2.6 1.00 CI
(1.00–1.00)
− 2.9 11.1 ± 2.7
  1. % mean percentage difference, relative to 90-min SA original ppIF-derived VT; ρ Spearman’s rank correlation coefficient; CI 95% confidence interval; SD standard deviation