From: A short 18F-FDG imaging window triple injection neuroimaging protocol for parametric mapping in PET
 | 2TCM (short window) | Patlak (validation window) | Relative error (%) in \({\boldsymbol{K}}_{i}\) (short window against validation window) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
 | \({\boldsymbol{K}_{1}}\)(ml/g/min) | \({\boldsymbol{k}}_{2}\)(1/min) | \({\boldsymbol{k}}_{3}\)(1/min) | \({\boldsymbol{K}}_{i}\)(ml/g/min) | \({\boldsymbol{K}}_{i}\)(ml/g/min) | |||||||
 | GM | WM | GM | WM | GM | WM | GM | WM | GM | WM | GM | WM |
P1 | 0.07 | 0.04 | 0.10 | 0.06 | 0.05 | 0.03 | 0.025 | 0.014 | 0.024 | 0.015 | 3.1 | − 4.4 |
P2 | 0.06 | 0.03 | 0.08 | 0.05 | 0.03 | 0.02 | 0.015 | 0.007 | 0.016 | 0.010 | − 1.1 | − 26.0 |
P3 | 0.09 | 0.05 | 0.13 | 0.07 | 0.05 | 0.01 | 0.022 | 0.006 | 0.021 | 0.011 | 6.4 | − 44.3 |
P4 | 0.07 | 0.04 | 0.10 | 0.06 | 0.05 | 0.03 | 0.025 | 0.014 | 0.024 | 0.015 | 3.1 | − 4.4 |
P5 | 0.06 | 0.05 | 0.12 | 0.07 | 0.02 | 0.04 | 0.010 | 0.016 | 0.011 | 0.018 | − 7.2 | − 11.0 |
P6 | 0.10 | 0.06 | 0.15 | 0.10 | 0.04 | 0.02 | 0.021 | 0.012 | 0.020 | 0.014 | 7.0 | − 13.6 |
Mean ± SD | 0.08  ± 0.02 | 0.05  ± 0.01 | 0.11  ± 0.03 | 0.07  ± 0.02 | 0.04  ± 0.01 | 0.03  ± 0.01 | 0.020  ± 0.006 | 0.012  ± 0.004 | 0.019  ± 0.005 | 0.014  ± 0.003 | 1.9  ± 5.3 | − 17.3  ± 15.4 |