电磁场鸟笼式可穿戴设备治疗阿尔茨海默病的数值分析与设计:可行性研究。

Felipe P Perez, David Michael Arvidson, Tyler Phoenix Taylor, Maryam Rahmani, Maher Rizkalla
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引用次数: 1

摘要

在这项研究中,我们对一种用于治疗阿尔茨海默病(AD)的新型EMF Birdcage可穿戴设备进行了数值分析。我们设计的新装置产生并辐射频率为64 MHz,比吸收率(SAR)为0.6 W/kg的模拟人脑组织。我们从印第安纳大学医学院(usm)对人类初级大脑培养物的实验研究中确定了这些参数。我们发现这种频率和SAR降低了细胞培养中的毒性Aβ水平。64兆赫的频率具有良好的皮肤深度穿透性,可以很容易地穿过包括头发、皮肤、脂肪、硬脑膜、脑脊液(CSF)和灰质在内的头部各层,深入脑组织。在较低的功率输入和能量下实现了0.6 W/kg的SAR,降低了热损伤的可能性。因此,这些参数提高了这些潜在治疗的安全性。这个鸟笼装置模拟了一台小型核磁共振成像机,在低得多的工作输入功率下产生相同的64mhz频率。在这项工作中,我们利用高频仿真系统(HFSS/EMPro)软件来生成所需EMF参数的鸟笼结构。64 MHz的辐射频率产生的散射S11参数为-15 dbs。当输入功率为100 W时,我们获得了0.6 W/kg的SAR。线圈尺寸接近15厘米高,直径22厘米,适合可穿戴系统。我们发现电场和SAR的分布均匀地辐射在模拟人的头部上,并且很好地渗透到大脑中,这被证明是一种合适的潜在的治疗阿尔茨海默病的策略。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Numerical Analysis and Design of an EMF Birdcage Wearable Device for the Treatment of Alzheimer's Disease: A Feasibility Study.

Numerical Analysis and Design of an EMF Birdcage Wearable Device for the Treatment of Alzheimer's Disease: A Feasibility Study.

Numerical Analysis and Design of an EMF Birdcage Wearable Device for the Treatment of Alzheimer's Disease: A Feasibility Study.

Numerical Analysis and Design of an EMF Birdcage Wearable Device for the Treatment of Alzheimer's Disease: A Feasibility Study.

In this study, we performed a numerical analysis of a novel EMF Birdcage wearable device for the treatment of Alzheimer's disease (AD). We designed the new device to generate and radiate a frequency of 64 MHz and a specific absorption rate (SAR) of 0.6 W/kg to a simulated human brain tissue. We determined these parameters from our experimental studies on primary human brain cultures at the Indiana University School of Medicine (IUSM). We found that this frequency and SAR decreased the toxic Aβ levels in the cell cultures. The frequency of 64 MHZ has good skin depth penetration, which will easily pass through the various head layers, including hair, skin, fat, dura, the cerebrospinal (CSF), and grey matter, and reach deeply into the brain tissues. The SAR of 0.6 W/kg was achieved with lower power input and energy, decreasing the probability of thermal injury. Therefore, these parameters enhance the safety of these potential treatments. This Birdcage device emulates a small-scale MRI machine, producing the same 64 MHz frequency at much lower operating input power. In this work, we utilized a high-frequency simulation system (HFSS/EMPro) software to produce the birdcage structure for the required EMF parameters. The 64 MHz radiating frequency produced the scattering S11 parameter of -15 dbs. We obtained a SAR of 0.6 W/kg when an input power of 100 W was applied. The coil dimensions were found to be near 15 cm in height and 22 cm in diameter, which fits in wearable systems. We found that the distribution of the electric field and SAR radiate homogeneously over the simulated human head with good penetration into the brain, which proves to be an appropriate potential therapeutic strategy for Alzheimer's disease.

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