H线圈在深部经颅磁刺激中的安全性评价

IF 1.1 4区物理与天体物理 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Magnetics Letters Pub Date : 2022-08-16 DOI:10.1109/LMAG.2022.3198370

Mai Lu;Shoogo Ueno

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引用次数: 1

摘要

本工作调查了护理人员使用H线圈进行深度经颅磁刺激（TMS）时的暴露情况。采用H线圈和真实人体模型进行安全评估。考虑了H线圈相对于TMS操作员身体的144个相对位置，包括距离和垂直高度。利用阻抗法获得了人体模型中磁通密度和感应电场的相关性。结果与国际非电离辐射防护委员会（ICNIRP）指南进行了比较。关于职业暴露，120和100厘米的安全距离分别来自ICNIRP参考水平（RL）和基本限制（BR）。在100cm的距离处，曝光水平不超过ICNIRP BR，尽管曝光水平超过RL，但允许继续曝光。研究结果表明，护理人员应站在距离H线圈至少100厘米的地方。

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Safety Assessment of H-Coil for Nursing Staff in Deep Transcranial Magnetic Stimulation

This work investigates the exposure experienced by the nursing staff executing deep transcranial magnetic stimulations (TMS) using H-coil. The safety assessment was implemented by employing the H-coil and realistic human model. The 144 relative positions of the H-coil with respect to the TMS operator body were considered, including the distance and vertical height. Dependence of the magnetic flux density and induced electric fields in the human model were obtained by using the impedance method. Results were compared with the International Commission on Non-Ionizing Radiation Protection (ICNIRP) guidelines. Regarding the occupational exposure, safe distances of 120 and 100 cm are derived from the ICNIRP reference level (RL) and basic restriction (BR), respectively. At the distance of 100 cm, the exposure level does not exceed the ICNIRP BR, and although the exposure level exceeds the RL, continued exposure is allowed. The findings suggest that nursing staff should stand at least 100 cm apart from the H-coil.

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来源期刊

IEEE Magnetics Letters PHYSICS, APPLIED-

CiteScore

2.40

自引率

0.00%

发文量

期刊介绍： IEEE Magnetics Letters is a peer-reviewed, archival journal covering the physics and engineering of magnetism, magnetic materials, applied magnetics, design and application of magnetic devices, bio-magnetics, magneto-electronics, and spin electronics. IEEE Magnetics Letters publishes short, scholarly articles of substantial current interest. IEEE Magnetics Letters is a hybrid Open Access (OA) journal. For a fee, authors have the option making their articles freely available to all, including non-subscribers. OA articles are identified as Open Access.