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[Research on the brain phantom for transcranial electromagnetic neuromodulation]
Zhen Wu1,2, Nianshuang Wu1,2, Cheng Zhang1,2
1Beijing Key Laboratory of Bioelectromagnetism, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100190, P. R. China.
Summary
Researchers developed a novel brain phantom to accurately measure electric fields from transcranial magnetic stimulation (TMS), overcoming limitations of direct human brain measurements for neurological disorder treatments.
Area of Science:
- Neuroscience
- Biomedical Engineering
Context:
- Transcranial magnetic stimulation (TMS) is a key neuroregulatory technique for treating neurological and psychiatric disorders.
- The therapeutic efficacy of TMS is directly linked to the intracranial electric field it generates.
- Direct measurement of intracranial electric fields in humans is hindered by safety, ethical, and technical challenges.
Purpose:
- To create a realistic brain phantom for measuring TMS-induced intracranial electric fields.
- To overcome the limitations of in-vivo human brain measurements for TMS research.
Summary:
- A brain phantom was constructed using materials that mimic real brain tissue conductivity.
- Magnetic resonance imaging data was used for segmentation, 3D reconstruction, and 3D printing of distinct brain layers.
- The phantom's conductivity was validated by measuring the electric field induced by a TMS coil.
Impact:
- Provides a safe and effective experimental tool for studying TMS-induced electric fields.
- Facilitates research into the precise distribution of intracranial electric fields for optimizing TMS therapies.
- Enables advancements in understanding and improving treatments for neurological and psychiatric conditions using TMS.
