Table 1.

Errors of estimated SAR amplitude and FWHM, and thermal diffusivity for different voxel-fitting regions. Simulations repeated 400 times with a noise standard deviation of 2°C. Errors are presented as the median percent error of the 400 simulations and the breadth of the interquartile range.

Size of voxel- fitting region	Maximum SAR Median % Error (IQR)	SAR FWHM Median % Error (IQR)	Thermal diffusivity Median % Error (IQR)
3×3	7.6 (35.4)	−6.3 (40.2)	5.4 (88.7)
5×5	8.2 (21.8)	−7.0 (9.4)	4.6 (23.3)
7×7	7.2 (18.9)	−7.2 (6.7)	3.0 (15.8)
9×9	7.5 (18.2)	−7.3 (6.1)	2.4 (13.1)
11×11	8.3 (17.6)	−6.9 (6.3)	6.0 (11.2)