Massively Parallelized Boundary Element Simulation of Voxel-Based Human Models Exposed to MRI Fields

被引：13

作者：

Bottauscio, Oriano ^{[1
]}

Chiampi, Mario ^{[2
]}

Zilberti, Luca ^{[1
]}

机构：

[1] Ist Nazl Ric Metrol INRIM, I-10135 Turin, Italy

[2] Politecn Torino, Dipartimento Energia, I-10129 Turin, Italy

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2014年 / 50卷 / 02期

关键词：

BEMs; electromagnetic radiation effects; magnetic resonance imaging; modeling; HUMAN-BODY; NUMERICAL-SIMULATION; COMPUTATION; SAR;

D O I：

10.1109/TMAG.2013.2280523

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：

Boundary element and hybrid boundary element-finite element approaches are applied to the computation of induced electric field and specific absorption rate in voxel-based human models undergoing magnetic resonance imaging. Due to the very large size of the algebraic system, the procedure uses an iterative GMRES solver recalculating the element matrix at each iteration. A suitable processing of the Green integrals and a massively parallelized algorithm, based on the use of graphical processing units, leads to a strong reduction of the computational time.

引用

收藏

页码：1029 / 1032

页数：4

相关论文

共 20 条

[1] Computation of specific absorption rate in the human body due to base-station antennas using a hybrid formulation [J].

Abd-Alhameed, RA ;

Excell, PS ;

Mangoud, MA .

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 2005, 47 (02) :374-381

[2] Numerical simulation of SAR and B1-field inhomogeneity of shielded RF coils loaded with the human head [J].

Chen, J ;

Feng, ZM ;

Jin, JM .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1998, 45 (05) :650-659

[3] Calculation of the SAR Induced in Head Tissues Using a High-Order DGTD Method and Triangulated Geometrical Models [J].

Fahs, Hassan ;

Hadjem, Abdelhamid ;

Lanteri, Stephane ;

Wiart, Joe ;

Wong, Man-Fai .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2011, 59 (12) :4669-4678

[4] Reduction of Artifact of Metallic Implant in Magnetic Resonance Imaging by Coating of Diamagnetic Material [J].

Gao, Yanhui ;

Muramatsu, Kazuhiro ;

Kushibe, Atsumichi ;

Yamazaki, Keita ;

Chiba, Akihiko ;

Yamamoto, Toru .

IEEE TRANSACTIONS ON MAGNETICS, 2009, 45 (10) :4837-4840

[5]

Giordano D., 2013, P 19 S IMEKO TC 4 S, P549

[6] Simulations of the Stent Artifacts in Magnetic Resonance Imaging [J].

Guo, Yan ;

Jiang, Xiaohua .

IEEE TRANSACTIONS ON MAGNETICS, 2012, 48 (02) :659-662

[7] GPU-accelerated indirect boundary element method for voxel model analyses with fast multipole method [J].

Hamada, Shoji .

COMPUTER PHYSICS COMMUNICATIONS, 2011, 182 (05) :1162-1168

[8] The European Federation of Organisations for Medical Physics Policy Statement No 14: The role of the Medical Physicist in the management of safety within the magnetic resonance imaging environment: EFOMP recommendations [J].

Hand, J. ;

Bosmans, H. ;

Caruana, C. ;

Keevil, S. ;

Norris, D. G. ;

Padovani, R. ;

Speck, O. .

PHYSICA MEDICA-EUROPEAN JOURNAL OF MEDICAL PHYSICS, 2013, 29 (02) :122-125

[9] Modelling the interaction of electromagnetic fields (10 MHz-10 GHz) with the human body: methods and applications [J].

Hand, J. W. .

PHYSICS IN MEDICINE AND BIOLOGY, 2008, 53 (16) :R243-R286

[10]

Hasgall P. A., 2013, IT IS DATABASE THERM