RF-induced Heating Comparison between TEM and Birdcage Coils for Circular External Fixator

被引：0
|
作者：
Yang, Rui [1 ]
Zheng, Jianfeng [1 ]
Huang, Xin [1 ]
Chen, Ji [1 ]
机构：
[1] Univ Houston, Dept Elect & Comp Engn, Houston, TX 77004 USA
来源：
2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING | 2017年
关键词：
MRI; RF-induced heating; Circular external fixator; TEM coil; birdcage coil;
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：
The objective of this study is to numerically compare the radio frequency (RF) -induced heating in transverse electromagnetic (TEM) coil and birdcage (BC) coil in the presence of circular leg fixator. We show that TEM coil generates a larger peak specific absorption rate averaged over 1 gram (SAR(1g)) than BC coil with circular external fixator. In the specific case, the peak SAR(1g) in TEM coil can be 1.5 times higher than it in BC coil. Moreover, it is found that enlarging the size of the fixator will further increase the peak SAR(1g) for both TEM and BC coils.
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页码：1013 / 1014
页数：2
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