Electronic Science and Technology ›› 2021, Vol. 34 ›› Issue (6): 17-22.doi: 10.16180/j.cnki.issn1007-7820.2021.06.003

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Simulation Analysis of Induced Current Density of Transcranial Magnetic-Acoustical Electrical Stimulation Based on Realistic Human Head Model

LIU Yaze1,2,ZHANG Shuai1,2,GUO Liang1,2,CHEN Xintong1,2,WU Jiankang1,2   

  1. 1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment,Hebei University of Technology,Tianjin 300130, China
    2. Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province,Hebei University of Technology,Tianjin 300130,China
  • Received:2020-02-20 Online:2021-06-15 Published:2021-06-01
  • Supported by:
    National Natural Science Foundation of China(51877069)


The focusing characteristics of the induced current density is the key to precise neural regulation. The structure of the skull has an important influence on the induced current density distribution of TMAES. Therefore, a realistic human head model based on the CT data of the human head is established using the 3D calculating method. The finite element method is used to simulate the model during TMAES. The distribution of induced current density is obtained and subsequently evaluated. In order to further explore the relationship between the stimulus effect and the ultrasound frequency, ultrasonic waves with frequencies of 300 kHz, 400 kHz and 500 kHz are applied on the realistic human head model during TMAES. The results show that the increase of the frequency of the ultrasonic signal can increase the stimulation intensity, the stimulation length and the focus area. These results indicate that TMAES has good depth stimulation and focusing characteristics, and has the potential to noninvasively modulate neurons deep in the brain.

Key words: TMAES, realistic human head model, finite element method, magneto-acoustic coupling, induced current, focusing characteristics, ultrasound, 3D reconstruction

CLC Number: 

  • TP391.9