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. 2018 Jun 4;6:e4921. doi: 10.7717/peerj.4921

Figure 11. Current density distribution for different stimulation intensities.

Figure 11

(A–C) Stimulation time = 0 mA. (D–F) Stimulation time = 5 mA. (G–I) Stimulation time = 10 mA. (J–L) Stimulation time = 20 mA. (M–O) Stimulation time = 30 mA. (P–R) Stimulation time = 40 mA. (A, D, G, J, M, P) The current density distribution on the cross-sectional surface for different stimulation intensities. (B, E, H, K, N, Q) the middle one is magnified detailed view of the circled area in (A, D, G, J, M, P) respectively, i.e. the skin and fat layers. (C, F, I, L, O, R) The temperature distribution of the vertebrae, epidural fat, CSF, WM, and GM. The stimulation electrode side length is 1 cm, and the blood perfusion rate of the dermis and WM/GM are 0.025 s−1 and 0.012 s−1 respectively. The maximum and minimum current density values are shown with the corresponding color bars in each panel. Unit: A/m2.