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. Author manuscript; available in PMC: 2016 Aug 21.
Published in final edited form as: Phys Med Biol. 2015 Aug 6;60(16):6479–6494. doi: 10.1088/0031-9155/60/16/6479

Figure 5.

Figure 5

Results for when the tumor size is known but the location of the tumor model employed in SLE and ROI estimation is shifted by 1 pixel (~ 0.47 cm) from the correct location of the tumor (as displayed in figure 2b). Average SLE and ROI estimated activities are plotted relative to the true activities for the uniform liver (1st row) and non-uniform liver (2nd row) backgrounds. The error bar for each data point is the standard deviation over 100 noise realizations. As indicated by the ensemble mean-square errors (EMSE), SLE dramatically outperformed ROI for all these cases.