Table 4.

Comparison of the statistics of electric fields optimized by our method and by the comparison methods. Mean value for the electric field in a particular region was calculated by integrating the electric field magnitude over the region, divided by the region volume. All units are V/m except where noted. The numbers with asterisk (*) are used as the constraint bounds for the corresponding method.

	Dmochowski et al.	Ruffini et al.	Guler et al.
Brain
Max $\overrightarrow{E}$	0.12	0.17	0.13
Median $\overrightarrow{E}$	3.4E-4	1.3E-3	2.5E-4
Mean $\overrightarrow{E}$	3.8E-3	1.7E-3	1.5E-3
Electric power (ROI excluded) (V2m)	44.04	116.46	44.04*
ROI
Mean $\overrightarrow{E}$	0.05	0.07	0.06
Head
Max $\overrightarrow{E}$	70.08	70.93	74.38
Highest electrode current in magnitude (mA)	0.61	0.75	0.91
Individual electrode bound (mA)	1*	1*	1*
Total injected current (mA)	3.62	3.62*	3.62*