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.
引用
收藏
页码：1013 / 1014
页数：2
相关论文
共 50 条
  • [1] Comparison Study of RF-induced Heating in Leg Phantom with Circular External Fixator for TEM and Birdcage Coils at 3 T
    Yang, Rui
    Zheng, Jianfeng
    Chen, Ji
    Kainz, Wolfgang
    [J]. 2017 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY & SIGNAL/POWER INTEGRITY (EMCSI), 2017,
  • [2] Numerical Investigations of MRI RF-Induced Heating for External Fixation Device in TEM and Birdcage Body Coils at 3 T
    Yang, Rui
    Zheng, Jianfeng
    Kainz, Wolfgang
    Chen, Ji
    [J]. IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 2018, 60 (03) : 598 - 604
  • [3] Numerical Investigations of MRI RF-induced Heating for Passive Implants in Birdcage and TEM Body Coils at 3 Tesla
    Yang, Rui
    Zheng, Jianfeng
    Song, Shuo
    Guo, Ran
    Chen, Ji
    [J]. 2020 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY AND SIGNAL & POWER INTEGRITY VIRTUAL SYMPOSIUM(IEEE EMC+SIPI), 2020, : 261 - 265
  • [4] Impacts of MRI frequency on RF-induced Heating for External Fixation with Insulating Material
    Yang, Rui
    Zheng, Jianfeng
    Wang, Yu
    Guo, Ran
    Chen, Ji
    [J]. 2019 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION AND USNC-URSI RADIO SCIENCE MEETING, 2019, : 529 - 530
  • [5] Reducing MRI RF-induced heating for the external fixation using capacitive structures
    Zheng, Jianfeng
    Yang, Rui
    Wang, Qingyan
    Guo, Ran
    Xu, Jian
    Shou, Xingxian
    Kainz, Wolfgang
    Chen, Ji
    [J]. PHYSICS IN MEDICINE AND BIOLOGY, 2020, 65 (15):
  • [6] A counterpoise design for RF-induced heating reduction
    Wang, Yu
    Zheng, Jianfeng
    Wang, Qingyan
    Chen, Ji
    [J]. 42ND ANNUAL INTERNATIONAL CONFERENCES OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY: ENABLING INNOVATIVE TECHNOLOGIES FOR GLOBAL HEALTHCARE EMBC'20, 2020, : 4200 - 4203
  • [7] RF-Induced Heating Comparison Between in-vivo and in-phantom for 1.5T MRI
    Guo, Ran
    Zheng, Jianfeng
    Chen, Ji
    Kainz, Wolfgang
    [J]. 2016 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC), 2016, : 121 - 125
  • [8] rf-induced heating dynamics of noncrystallized trapped ions
    van Mourik, Martin W.
    Hrmo, Pavel
    Gerster, Lukas
    Wilhelm, Benjamin
    Blatt, Rainer
    Schindler, Philipp
    Monz, Thomas
    [J]. PHYSICAL REVIEW A, 2022, 105 (03)
  • [9] RF-induced heating of interventional devices at 23.66 MHz
    Ali Caglar Özen
    Maximilian Frederik Russe
    Thomas Lottner
    Simon Reiss
    Sebastian Littin
    Maxim Zaitsev
    Michael Bock
    [J]. Magnetic Resonance Materials in Physics, Biology and Medicine, 2023, 36 : 439 - 449
  • [10] Mechanical performance of hybrid Ilizarov external fixator in comparison with Ilizarov circular external fixator
    Yilmaz, E
    Belhan, O
    Karakurt, L
    Arslan, N
    Serin, E
    [J]. CLINICAL BIOMECHANICS, 2003, 18 (06) : 518 - 522
12345