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전기전도도의 비균질성을 고려한 정밀 두뇌 모형 내부에서 유기되는 유도 전기장 분포해석
Numerical Analysis of Electric Field Distribution Induced Inside a Realistic Brain Model Considering Conductivity Heterogeneity

김동훈   (경북대학교 전기공학과UU0000096  ); 이일호   (경북대학교 전기공학과UU0000096  ); 원철호   (경일대학교UU0000128  );
  • 초록

    In this paper, the electric field distribution induced inside the brain during Transcranial Magnetic Stimulation(TMS) has been thoroughly investigated in terms of tissue heterogeneity and anisotropy as well as different head models. To achieve this, first, an elaborate head model consisting of seven major parts of the head has been built based on the Magnetic Resonance(MR) image data. Then the Finite Element Method(FEM) has been used to evaluate the electric field distribution under different head models or three different conductivity conditions when the head model has been exposed to a time varying magnetic field achieved by utilizing the Figure-Of-Eight(FOE) stimulation coil. The results show that the magnitude as well as the distribution of the induced field is significantly affected by the degree of geometrical asymmetry of head models and conductivity conditions with respect to the center of the FOE coil.


  • 주제어

    Brain Model .   Finite Element Analysis .   Induced Electric Field .   Transcranial Magnetic Stimulation.  

  • 참고문헌 (12)

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