Skip to main content

Table 5 Calculated values of U c and corresponding Ett min , Ett max and E max for needle electrodes.

From: Analytical and numerical quantification and comparison of the local electric field in the tissue for different electrode configurations

Needle electrode Configuration Target tissue
Ettmax(V/cm)
Target tissue
Ettmin(V/cm)
Entire tissue
Emax(V/cm)
Needed voltage on the electrodes-Uc (V)
2 (Fig. 4a) 1983.3 U/d = 1300 16325.0 2466.8
4 (Fig. 4b) 1376.8 U/d = 1300 9727.4 1668.8
6 (Fig. 4c) 1496.9 U/d = 1300 7371.9 1427.0
6 (Fig. 4d) 1373.2 U/d = 1300 9625 1670.0
6 (Fig. 4f) 1653.7 U/d = 1300 11558.7 1557.0
7 (Fig. 4f) * / / / /
7 (Fig. 4g) 12536 U/d = 1300 12536 889.88
  1. *With this specific configuration of polarities (Fig. 4f) we can not achieve Et min = U/d (Et min ~0), since the electric field intensity inside the target tissue is almost zero (Et min ~0) and therefore is this configuration suitable only in a combination with the configuration as shown in Fig. 4g.