首页|植入物射频热效应评估的测试环境构建研究

植入物射频热效应评估的测试环境构建研究

Research on Construction of Test Environment for Assessment of RF-Induced Heating Effects of Implants

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在磁共振检查中,植入物与射频场相互作用会引起周围人体组织发热,甚至造成组织损伤.评估植入物射频热效应需要进行植入物电磁建模、电磁模型验证和虚拟人体仿真.其中,构建用于电磁模型验证的测试环境是射频热效应评估的重要环节.研究建立了包括射频发生系统、电磁场量测系统和机械臂定位系统的硬件环境,使用基于Python的软件开发平台实现了自动化控制软件环境,形成了高精度、自动化的集成测试环境.研究结果表明,该测试环境形成的电场与计算机仿真得到的电场具有较好的一致性,可以用于植入物射频热效应评估.
In magnetic resonance examination,the interaction between implants and the radio frequency(RF)fields induces heating in human tissue and may cause tissue damage.To assess the RF-induced heating of implants,three steps should be executed,including electromagnetic model construction,electromagnetic model validation,and virtual human body simulations.The crucial step of assessing RF-induced heating involves the construction of a test environment for electromagnetic model validation.In this study,a hardware environment,comprised of a RF generation system,electromagnetic field measurement system,and a robotic arm positioning system,was established.Furthermore,an automated control software environment was developed using a Python-based software development platform to enable the creation of a high-precision automated integrated test environment.The results indicate that the electric field generated in this test environment aligns well with the simulated electric field,making it suitable for assessing the RF-induced heating effects of implants.

implantsmagnetic resonance imagingRF-induced heatingPython

李永华、陆凌峰、王晶、李铖铃、杨鹏飞、汪志超、吴大晶、刘勋、胡晟

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上海市医疗器械检验研究院,上海市,201318

国家药品监督管理局医用电气设备重点实验室,上海市,201318

国家药品监督管理局医疗器械技术审评中心,北京市,100081

植入物 磁共振成像 射频热效应 Python

上海市科技创新行动计划自然科学基金申报指南面上项目(2021)

21ZR1459600

2024

中国医疗器械杂志
上海市医疗器械检测所

中国医疗器械杂志

CSTPCD
影响因子:0.503
ISSN:1671-7104
年,卷(期):2024.48(3)
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