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| Glossary of symbols | |
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| |
| b(t) | Input function |
| B(t) | Tracer concentration in whole-blood |
| R(t) | Modeled time-activity curve |
| fB | Fractional contribution of B(t) to the imaging measurement |
| K1, k2 − k5 | Rate constants for 1K-5K serial compartment models |
| κB, κb, κ1, κ2 | Linear parameters of the separable parameter space formulations |
| υ1, υ2 | Nonlinear parameters of the separable parameter space formulations |
| b̆(t) | Temporal term (integral of b(t)), present in 1K, 3K, and 5K models |
| S1(t; υ1; b(t)) | Temporal term present in 2K–5K compartment models |
| S2(t; υ1, υ2; b(t)) | Temporal term present in 4K–5K compartment models |
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