A counterpoise design for RF-induced heating reduction

被引：0

作者：

Wang, Yu ^{[1
]}

Zheng, Jianfeng ^{[1
]}

Wang, Qingyan ^{[1
]}

Chen, Ji ^{[1
]}

机构：

[1] Univ Houston, Dept Elect & Comp Engn, Houston, TX 77204 USA

来源：

42ND ANNUAL INTERNATIONAL CONFERENCES OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY: ENABLING INNOVATIVE TECHNOLOGIES FOR GLOBAL HEALTHCARE EMBC'20 | 2020年

关键词：

1.5; T; MRI; LEAD;

D O I：

暂无

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

This paper presents a novel lead body design for active implantable medical devices (AIMD) to reduce Radio-frequency (RF) induced heating during magnetic resonance imaging (MRI) scanning. By introducing a counterpoise electrode to the original lead construct, part of the RF-induced energy can be decoyed into the surrounding tissues while the therapy signal is intact. The numerical simulation studies of three leads with different configurations are presented to demonstrate the effectiveness of this technique. From simulation results at 1.5 T, the peak 1g average SAR value can be reduced by a factor of 3 when the length of the counterpoise electrode is properly designed.

引用

页码：4200 / 4203

页数：4

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