Influence of a Metallic Shield on RF-Induced Heating of a Lead with Straight and Helical Wires

被引：0
|
作者：
Kozlov, Mikhail [1 ]
Kainz, Wolfgang [2 ]
Daniel, Luca [3 ]
机构：
[1] Max Plank Inst Human Cognit & Brain Sci, Leipzig, Germany
[2] US FDA, Silver Spring, MD USA
[3] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA
来源：
2019 IEEE MTT-S INTERNATIONAL CONFERENCE ON NUMERICAL ELECTROMAGNETIC AND MULTIPHYSICS MODELING AND OPTIMIZATION (NEMO 2019) | 2019年
关键词：
electromagnetics; RF safety; heating; active implantable medical devices; transfer functions;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present results including a lead electromagnetic model (LEM), power deposition, and RF-induced heating for a set of single electrode leads with straight and helical wires, as regular unshielded lead, and leads with a metallic shield. Our results were obtained numerically, employing 3D electromagnetic and thermal co-simulations at 128 MHz. We observe that the metallic shield raises the LEM calibration factor and thereby it increases the RF-induced heating of the lead with helical wires, a circumstance that previously had mostly been neglected.
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页数：4
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