√MSE calculated for the fitting of the Patlak line for the gold standard 90- to 240-second delayed acquisition and the truncated delayed acquisitions
| 90–120 Seconds | 90–150 Seconds | 90–180 Seconds | 90–210 Seconds | 90–240 Seconds | |
|---|---|---|---|---|---|
| Nonischemic | 4.84 (3.95–5.95) | 3.13 (2.65–3.71) | 2.16 (1.84–2.54) | 1.66 (1.41–1.95) | 1.35 (1.14–1.59) |
| Infarct | 5.17 (4.10–6.52) | 3.38 (2.73–4.19) | 2.31 (1.87–2.84) | 1.75 (1.43–2.15) | 1.41 (1.15–1.73) |
| Penumbra | 5.31 (4.31–6.55) | 3.42 (2.86–4.09) | 2.35 (1.99–2.78) | 1.79 (1.51–2.12) | 1.44 (1.21–1.72) |
Note:—√MSE indicates root-mean-square error.