. 2022 Oct 19;121(22):4247–4259. doi: 10.1016/j.bpj.2022.10.020

Table 1.

Intracellular and extracellular conductivity for different regions of the atrial tissue along fiber direction and anisotropy

Region	Intracellular conductivity (S/m)	Extracellular conductivity (S/m)	Anisotropy ratio
SAN (center)	0.0052 $(V_{i})$	0.0188 $(V_{i})$	1:1.45
Right atrium	0.3114	1.1186	1:1.75
CT	0.7060 $(V_{f})$	2.5361 $(V_{f})$	1:2.6

$V_{i}$ and $V_{f}$ are defined in Eq. 1.