Figure 4.

The percentage of ventricular myocardial mass below discrete potential gradients in different anisotropic conductivity. The right diagram shows the case in Table 1 with different anisotropy ratios(${\sigma }_l/{\sigma }_t$), which are 1:1, 2:1, 2:1, 2.648:1, 3.74:1, 4:1 respectively. The units of conductivity ${\sigma }_l$ and ${\sigma }_t$ are S/m, the units of DFTs are V.