Model | No. of parameters | Parameter | Range of density for parameters |
---|---|---|---|
13N-ammonia model | 2 | F | 0.1–5.0 (mL/min/g) |
f | 0.0–1.0 | ||
Input function | 4 | α | 2.0–9.0 |
β | 2.0–9.0 (s) | ||
Cmax | 1.0–5.0 (Bq/mL) | ||
C0 | 0.1–0.8 (Bq/mL) | ||
Proportional variance, gaussian noise models | 2 | ξi | 0–2 (%) |
ξo | 5–20 (%) |
ξi = constant for blood time–activity curve noise model; ξo = constant for tissue time–activity curve noise model. For example, blood time–activity curve noise has variance of ξi multiplied by the signal.