Linear regression analysis* | ||||||
Parameter (model) | Scan duration (min) | Robustness (%) | Slope | Intercept | R2 | ICC* |
K1 (1T1k+VB) | 5 | 100 | 0.98 | 0.05 | 0.82 | 0.84 |
10 | 100 | 0.98 | 0.03 | 0.94 | 0.95 | |
15 | 100 | 0.99 | 0.02 | 0.97 | 0.98 | |
20 | 100 | 1.01 | 0.01 | 0.99 | 0.99 | |
30 | 100 | 1.00 | 0.00 | 1.00 | 1.00 | |
Ki (2T3k+VB) | 5 | 60 | 0.82 | 0.09 | 0.59 | 0.75 |
10 | 65 | 0.93 | 0.03 | 0.97 | 0.98 | |
15 | 75 | 1.07 | −0.02 | 0.94 | 0.97 | |
20 | 75 | 1.05 | −0.01 | 0.90 | 0.95 | |
30 | 80 | 1.03 | −0.01 | 1.00 | 1.00 |
↵* Results for comparison of quantification parameters from short scan durations to those derived from full 40-min dynamic scan.