Parameter values derived from the five different WX kinetic models.

Note.—SD = standard deviation, WX = water-exchange-modified, TK = Tofts-Kety, ETK = extended Tofts-Kety, 2CX = two compartment exchange, AATH = adiabatic approximation to the tissue homogeneity, DP = distributed parameter, BF = total hepatic blood flow (in mL/min/100 g), γ = arterial flow fraction (unitless), BFA = arterial blood flow (in mL/min/100 g), BFPV = portal blood flow (in mL/min/100 g), BV = blood volume (in mL/100 g), MTT = mean transit time (in min), PS = capillary wall permeability-surface area product (in mL/min/100 g), vI = fractional interstitial volume (unitless), E = extraction fraction (unitless), τC = mean intracellular water molecule lifetime (sec), vC = fractional intracellular volume (unitless), and RMSE = root-mean-square error between original and fitted ET(t).Parameter values derived from the five different WX kinetic models.