TABLE 3.

Hepatic V_max of Galactose Calculated from ¹⁸F-FDGal PET/CT

Subject no.	LC	CA (mmol/L blood)	${\mathrm{K}}_{+\text{gal}}^{*}$ (L blood/min/L liver tissue)	${\mathrm{V}}_{\text{max}}^{\text{PET}}$ (mmol/min/L liver tissue)
1	0.13 ± 0.02	10.1 ± 2.1	0.014 ± 0.002	1.10 ± 0.48
2	0.14 ± 0.01	6.5 ± 1.3	0.029 ± 0.002	1.85 ± 0.60
3	0.12 ± 0.02	11.7 ± 1.6	0.011 ± 0.002	1.16 ± 0.40
4	ND	7.1 ± 0.5	0.019 ± 0.002	ND
5	0.17 ± 0.03	ND	ND	ND
6	0.14 ± 0.02	10.1 ± 0.6	0.020 ± 0.002	1.51 ± 0.53
7	0.10 ± 0.03	7.2 ± 0.6	0.025 ± 0.006	2.02 ± 1.10
8	0.11 ± 0.03	9.2 ± 0.7	0.024 ± 0.001	2.11 ± 0.96
Mean ± SE	0.13 ± 0.01	8.3 ± 0.3	0.019 ± 0.001	1.41 ± 0.24

LC = lumped constant for ¹⁸F-FDGal; C_A = mean arterial blood concentration of galactose during the ¹⁸F-FDGal PET study with galactose infusion; ${\mathrm{K}}_{+\text{gal}}^{*}$ = systemic hepatic clearance of ¹⁸F-FDGal calculated from the PET study with galactose infusion; ${\mathrm{V}}_{\text{max}}^{\text{PET}}$ = maximum hepatic removal rate of galactose calculated from ¹⁸F-FDGal PET data with galactose infusion (Eq. 5); ND = not determined (in subject 4, no liver vein blood samples were obtained during PET study; in subject 5, the PET study with galactose infusion was not performed; mean ± SE, weighted mean ± SE of weighted mean.

Individual values are given as estimate ± SE of estimate.