Realistic Estimation of the Local Specific Absorption Rate of Human Head in MR Scanner at 7T

被引:0
|
作者
Fontana, Nunzia [1 ]
Monorchio, Agostino [1 ]
Stara, Riccardo [2 ]
Retico, Alessandra [2 ]
Tiberi, Gianluigi [4 ]
Tosetti, Michela [3 ]
机构
[1] Univ Pisa, Dipartimento Ingn Informaz, Via G Caruso 16, I-56122 Pisa, Italy
[2] Univ Pisa, INFN, Dipartimento Fis, I-56122 Pisa, Italy
[3] Stella Maris Sci Inst, Pisa, Italy
[4] Fondazione Imago7, Pisa, Italy
关键词
D O I
暂无
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
The evaluation of the local Specific Absorption Rate (local SAR) is a major concern in high field Magnetic Resonance (MR) systems. The investigation here presented is focused on the estimation of the Specific Absorption Rate in human head excited by a 7T surface coil. The aim of our work is to evaluate the maximum local SAR of the sample inside the scanner under realistic condition of use. The proposed methodology can be adopted to avoid the over-exposure of the body during the MR exam.
引用
收藏
页码:2024 / +
页数:2
相关论文
共 50 条
  • [1] Local SAR in Adults and Children at 7T MR: Realistic Estimation by the Using of Simulations
    Fontana, N.
    Tiberi, G.
    Stara, R.
    Monorchio, A.
    Retico, A.
    Tosetti, M.
    2014 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA), 2014, : 260 - 263
  • [2] Specific Absorption Rate Intersubject Variability in 7T Parallel Transmit MRI of the Head
    de Greef, Martijn
    Ipek, Ozlem
    Raaijmakers, Alexander J. E.
    Crezee, Johannes
    van den Berg, Cornelis A. T.
    MAGNETIC RESONANCE IN MEDICINE, 2013, 69 (05) : 1476 - 1485
  • [3] Evaluation of specific absorption rate and heating in children exposed to a 7T MRI head coil
    Malik, Shaihan J.
    Hand, Jeffrey W.
    Carmichael, David W.
    Hajnal, Joseph, V
    MAGNETIC RESONANCE IN MEDICINE, 2022, 88 (03) : 1434 - 1449
  • [4] Specific absorption rate and temperature in neonate models resulting from exposure to a 7T head coil
    Malik, Shaihan J.
    Hand, Jeffrey W.
    Satnarine, Ryan
    Price, Anthony N.
    Hajnal, Joseph, V
    MAGNETIC RESONANCE IN MEDICINE, 2021, 86 (03) : 1299 - 1313
  • [5] Safety for Human MR Scanners at 7T
    Okada, Tomohisa
    Akasaka, Thai
    Thuy, Dinh H. D.
    Isa, Tadashi
    MAGNETIC RESONANCE IN MEDICAL SCIENCES, 2022, 21 (04) : 531 - 537
  • [6] Intersubject specific absorption rate variability analysis through construction of 23 realistic body models for prostate imaging at 7T
    Meliado, Ettore F.
    van den Berg, Cornelis A. T.
    Luijten, Peter R.
    Raaijmakers, Alexander J. E.
    MAGNETIC RESONANCE IN MEDICINE, 2019, 81 (03) : 2106 - 2119
  • [7] Comparison of tight-fitting 7T parallel-transmit head array designs using excitation uniformity and local specific absorption rate metrics
    Kazemivalipour, Ehsan
    Wald, Lawrence L.
    Guerin, Bastien
    MAGNETIC RESONANCE IN MEDICINE, 2024, 91 (03) : 1209 - 1224
  • [8] 7T Transmit/Receive Arrays Using ICE Decoupling for Human Head MR Imaging
    Yan, Xinqiang
    Zhang, Xiaoliang
    Feng, Baotong
    Ma, ChuangXin
    Wei, Long
    Xue, Rong
    IEEE TRANSACTIONS ON MEDICAL IMAGING, 2014, 33 (09) : 1781 - 1787
  • [9] Investigation of maximum local specific absorption rate in 7T magnetic resonance with respect to load size by use of electromagnetic simulations
    Tiberi, Gianluigi
    Fontana, Nunzia
    Costagli, Mauro
    Stara, Riccardo
    Biagi, Laura
    Symms, Mark Roger
    Monorchio, Agostino
    Retico, Alessandra
    Cosottini, Mirco
    Tosetti, Michela
    BIOELECTROMAGNETICS, 2015, 36 (05) : 358 - 366
  • [10] Specific absorption rate studies of the parallel transmission of inner-volume excitations at 7T
    Zelinski, Adam C.
    Angelone, Leonardo M.
    Goyal, Vivek K.
    Bonmassar, Giorgio
    Adalsteinsson, Elfar
    Wald, Lawrence L.
    JOURNAL OF MAGNETIC RESONANCE IMAGING, 2008, 28 (04) : 1005 - 1018