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. Author manuscript; available in PMC: 2008 Jul 1.
Published in final edited form as: Nucl Med Biol. 2007 Jul;34(5):483–492. doi: 10.1016/j.nucmedbio.2007.03.008

Fig. 8.

Fig. 8

Comparing the recovered input function by direct data fitting of the plasma samples (θ = 3.909) and by using the TTACS in the data fitting (7) (θ = 2.287), for representative subject 7. The use of the TTACS in the nested optimization yields a θ which leads to a much better fit of the recovered input function with the plasma samples.