Table 2.

Measured standard deviation of reconstructed conductivity from Figure 5. ROI (region of interest) was located in the normal gray, white matter, and anomalies with the voxel size of 5 × 5 × 5 mm³. Note CoReHA provides only conductivity contrast information. We therefore show standard deviation of conductivity values as a quantitative criterion representing an improvement in conductivity images.

Current	Measured standard deviation in conductivity (mS/m)
	White (gray) matter			Anomaly 1			Anomaly 2
	1 NEX	4 NEX	8 NEX	1 NEX	4 NEX	8 NEX	1 NEX	4 NEX	8 NEX
1 mA	1.4 (6.3)	0.9 (3.1)	0.6 (2.6)	1.3	0.6	0.4	5.4	2.7	2.4
3 mA	1.1 (5.9)	0.6 (2.4)	0.4 (2.1)	0.8	0.4	0.3	5.2	2.4	2.0
5 mA	0.9 (4.7)	0.4 (1.9)	0.3 (1.4)	0.6	0.4	0.2	3.2	2.3	1.9