Author(s)

Weiming Sun, Xiangli Dong, Guohua Yu and Lang Shuai

Corresponding Author

Weiming Sun

ABSTRACT

Decompressive craniectomy is used to treat the patients with brain swelling and the patient’s skull is partly removed. Finite element simulation of transcranial direct current stimulation is a mathematical analysis method based on three-dimensional head model analysis of transcranial direct current stimulation current distribution. The impact factors to the including the influence of different electrode shapes, different electrode areas are explored to transcranial direct current stimulation after decompressive craniectomy. when anode area is 10 cm2 and cathode areas vary from 2 cm2 to 30 cm2, the electric field strength of the cathode is hardly affected by the anode area. when cathode area is 10 cm2 and anode areas vary from 2 cm2 to 30 cm2, the smaller the anode area is, the larger the electric field intensity of the cathode is. The stimulation of the circular electrode is better than the square electrode stimulation. The smaller the electrode area, the larger the change of the electric field near the internal electric field electrode. In practice, this study has certain reference value for the choice of tDCS.

KEYWORDS

Finite element method; decompressive craniectomy; electric field strength