Figure 1

Current density distribution (A/m²) within patient’s body (mid-sagittal section) resulted by the FDTD analysis: (a) with a non-conductive operating table; (b) with a conductive operating table considered at ground potential. The active electrode is located about at sternum (note the high current-density spots in both figures) while the return electrode is at the patient’s back. For the reported example a 400 kHz frequency is assumed.