Table 1.

Timings for evaluation (eval) of the forward model and the gradient, running on 1 computing node with 8 cores for the different subjects with different mesh resolutions

Patient ID	Elements	Forward eval time, s	Forward eval	Gradient eval time, s	Gradient eval	Total run time, h
CASE1	7362	32 ± 19.8	9 ± 1.6	9 ± 0.1	8 ± 1.5	1.97
	58 896	668 ± 529.8	9 ± 1.7	81 ± 1.3	7 ± 1.6	36.1
CASE2	4755	19 ± 9.6	9 ± 2.1	8 ± 0.1	8 ± 2.0	1.88
	38 040	387 ± 325.8	9 ± 2.5	47 ± 0.4	8 ± 2.2	32.6
CASE3	4377	17 ± 5.3	10 ± 2.1	8 ± 0.9	8 ± 2.1	1.35
	35 016	259 ± 146.3	9 ± 2.4	42 ± 0.7	8 ± 2.2	15.6

The average number of forward and gradient evaluations for each measurement points are also shown along with the standard deviations.