Figure 4 | Scientific Reports

Figure 4

From: Feasibility and robustness of dynamic 18F-FET PET based tracer kinetic models applied to patients with recurrent high-grade glioma prior to carbon ion irradiation

Figure 4

Goodness of fit compared to model stability. The left plot shows \({{\chi }^{2}}_{red}\) for the 1TCM and 2TCM on a zoomed scale for better comparison. The right plot shows the values for the corrected Akaike information criterion (cAIC) that accounts for model complexity by panelizing the fit quality (sum of squared residuals) with the number of parameters in the model. Lower cAIC indicates a better representation of the fitted data by the model. cAIC from the 2TCM were lowest, even though \({{\chi }^{2}}_{red}\) of this model was slightly higher compared to the 1TCM.

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