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. Author manuscript; available in PMC: 2017 Jan 11.
Published in final edited form as: Tomography. 2016 Dec;2(4):295–307. doi: 10.18383/j.tom.2016.00217

Figure 3.

Figure 3

Illustration of the proposed model of DSC-MRI concentration–time curves. The representative ΔR2*(t) concentration–time curve is modeled by a γ-variate plus its cumulative integral scaled by a constant. The γ-variate is used to model the first pass of the tracer, whereas the cumulative integral is used to model recirculation and/or leakage of the tracer.