y = y₀ + A₁ * (1 − exp(−x/t₁)) + A₂*(1 − exp(−x/t₂))

Equation

A₁ = −547.27256 ± 297.663,

t₁ = 30.5067 ± 27.86813

A₂ = −2879.33959 ± 285.98521

t₂ = 2.74288 ± 0.63698

y₀ = 3484.79465 ± 154.41194

R² = 0.96899

Blood

A₁ = −532.03603 ± 83.68513,

t₁ = 24.99708 ± 5.95676

A₂ = −1820.68153 ± 76.38709

t₂ = 2.60151 ± 0.26001

y₀ = 2406.28198 ± 48.37597

R² = 0.99562

Bone

A₁ = −2783.67273 ± 257.07815,

t₁ = 2.63706 ± 0.57406

A₂ = −545.29981 ± 267.99083

t₂ = 29.18129 ± 24.18423

y₀ = 3385.39947 ± 142.88887

R² = 0.97249

Brain

A₁ = −3277.41059 ± 176.80389,

t₁ = 1.99287 ± 0.25775

A₂ = −748.36646 ± 180.02577

t₂ = 22.17977 ± 9.59389

y₀ = 4090.93454 ± 116.68704

R² = 0.98946

Adipose tissue