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. 2013 Mar 20;8(3):e59885. doi: 10.1371/journal.pone.0059885

Figure 7. Comparison of Inter-slice Variation of Tofts Fitting Results on A Primary Tumor.

Figure 7

Tofts model fittings on a primary tumor by using the individually extracted CTCs from each slice compared to the fitting results by using the slice-averaged CTCs as a reference. (a) Large deviations over 50% were found in the estimations of Ktrans, ve and vp by the use of individual artery CTCs from the interior slices (slices 8–12). (b) Relatively stable and consistent fitting results (<35% deviation) were achieved by using the individual CTCs in veins.