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. Author manuscript; available in PMC: 2015 Jan 7.
Published in final edited form as: Mol Imaging Biol. 2009 Dec 1;12(3):286–294. doi: 10.1007/s11307-009-0273-5

TABLE 1.

Initial Values and Bounds for Input Function Estimation.

Parameter Initial Value Upper Bound Lower Bound
K1 (min−1) 0.89 2.0 0
k2 (min−1) 0.37 2.0 0
k3 (min−1) 0.17 0.5 0
k4 (min−1) 0.005 0.01 0
fcc 0.8 1.0 0.4
fmc 0.2 0.6 0
fcm 0.4 0.5 0
fmm 0.4 1.0 0.3
A1 (MBq·mL−1) 8.7 20.0 0
A2 (MBq·mL−1) 2.2 10.0 0
A3a (MBq·min−1·mL−1) 6,200.0 10,000.0 500.0
l1 (min−1) −5.2 0 −15.0
l2 (min−1) −0.04 0 −0.05
l3 a (min−1) −104.0 0 −250.0
t0 a (min) 0 0.3 0
w1 a 1.0 3.0 0
w2 a 1.0 3.0 0
w3 a 0.1 0.1 0.05
a

Only for input function estimation using Fang and Muzic’s method (CWRU) [3].