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Table 2 Effect of graphical modeling start-times (t*) on measured VT and goodness-of-fit values (N = 5)

From: Reproducible quantification of cardiac sympathetic innervation using graphical modeling of carbon-11-meta-hydroxyephedrine kinetics with dynamic PET-CT imaging

t* (min) Logan VT Logan r2 MA1 VT MA1 1 − rSEE
1.5 11.2 0.90 13.0 0.85
2 12.1 0.91 13.6 0.87
2.5 13.2 0.92 14.6 0.89
3 14.6 0.94 15.4 0.92
4 16.4 0.94 17.0 0.94
5 18.2 0.96 19.8 0.97
10 18.8 0.95 21.4 0.97
15 19.2 0.92 22.2 0.97
20 17.6 0.92 21.4 0.98
  1. The start-time of 5 min (values shown in italics) was selected with the MA1 VT value closest to the 1TC model reference value of 20 mL/cm3 and the highest Logan r2