메뉴 건너뛰기




Volumn 20, Issue 1, 2007, Pages 58-68

In-depth study of the electromagnetics of ultrahigh-field MRI

Author keywords

Electromagnetics; Polarization; TEM resonator; Ultrahigh field MRI

Indexed keywords

COMPUTER SIMULATION; ELECTROMAGNETIC WAVES; FINITE DIFFERENCE TIME DOMAIN METHOD; MAGNETIC RESONANCE IMAGING; NUMERICAL ANALYSIS; POLARIZATION; RESONATORS;

EID: 33847394130     PISSN: 09523480     EISSN: 10991492     Source Type: Journal    
DOI: 10.1002/nbm.1094     Document Type: Article
Times cited : (32)

References (34)
  • 4
    • 21844457678 scopus 로고    scopus 로고
    • Design and performance issues of RF coils utilized in ultra high field MRI: Experimental and numerical evaluations
    • Ibrahim TS, Kangarlu A, Chakeres DW. Design and performance issues of RF coils utilized in ultra high field MRI: experimental and numerical evaluations. IEEE Bio Med. Engng. 2005; 52: 1278-1284.
    • (2005) IEEE Bio Med. Engng. , vol.52 , pp. 1278-1284
    • Ibrahim, T.S.1    Kangarlu, A.2    Chakeres, D.W.3
  • 7
    • 0032252606 scopus 로고    scopus 로고
    • SAR and B1 field distributions in a heterogeneous human head model within a birdcage coil
    • Collins CM, Li S, Smith MB. SAR and B1 field distributions in a heterogeneous human head model within a birdcage coil. Magn. Reson. Med. 1998; 40: 847-856.
    • (1998) Magn. Reson. Med. , vol.40 , pp. 847-856
    • Collins, C.M.1    Li, S.2    Smith, M.B.3
  • 8
    • 0032080159 scopus 로고    scopus 로고
    • Numerical simulation of SAR and B1-field inhomogeneity of shielded RF coils loaded with the human head
    • Chen J, Feng Z, Jin JM. Numerical simulation of SAR and B1-field inhomogeneity of shielded RF coils loaded with the human head. IEEE Trans. Biomed. Engng 1998; 45: 650-659.
    • (1998) IEEE Trans. Biomed. Engng , vol.45 , pp. 650-659
    • Chen, J.1    Feng, Z.2    Jin, J.M.3
  • 9
    • 0029827185 scopus 로고    scopus 로고
    • Computation of electromagnetic fields for high-frequency magnetic resonance imaging applications
    • Jin JM, Chen J, Chew WC, Gan H, Magin RL, Dimbylow PJ. Computation of electromagnetic fields for high-frequency magnetic resonance imaging applications. Phys. Med. Biol. 1996; 41: 2719-2738.
    • (1996) Phys. Med. Biol. , vol.41 , pp. 2719-2738
    • Jin, J.M.1    Chen, J.2    Chew, W.C.3    Gan, H.4    Magin, R.L.5    Dimbylow, P.J.6
  • 10
    • 4043177599 scopus 로고    scopus 로고
    • A numerical analysis of radiofrequency power requirements in magnetic resonance imaging experiments
    • (special issue on Biological Effects and Medical Applications of RF/ Microwaves)
    • Ibrahim TS. A numerical analysis of radiofrequency power requirements in magnetic resonance imaging experiments. IEEE Trans. Microwave Theory and Techniques (special issue on Biological Effects and Medical Applications of RF/Microwaves) 2004; 52: 1999-2003.
    • (2004) IEEE Trans. Microwave Theory and Techniques , vol.52 , pp. 1999-2003
    • Ibrahim, T.S.1
  • 12
    • 0035685766 scopus 로고    scopus 로고
    • Effect of RF coil excitation on field inhomogeneity at ultra high fields: A field optimized TEM resonator
    • Ibrahim TS, Lee R, Baertlein BA, Robitaille P-ML. Effect of RF coil excitation on field inhomogeneity at ultra high fields: a field optimized TEM resonator. Magn. Res. Imag. 2001; 19: 1339-1347.
    • (2001) Magn. Res. Imag. , vol.19 , pp. 1339-1347
    • Ibrahim, T.S.1    Lee, R.2    Baertlein, B.A.3    Robitaille, P.-M.L.4
  • 14
    • 0344731407 scopus 로고    scopus 로고
    • Specific absorption rates and induced current densities for an anatomy-based model of the human for exposure to time-varying magnetic fields of MRI
    • Gandhi OP, Chen XB. Specific absorption rates and induced current densities for an anatomy-based model of the human for exposure to time-varying magnetic fields of MRI. Magn. Reson. Med. 1999; 41: 816-823.
    • (1999) Magn. Reson. Med. , vol.41 , pp. 816-823
    • Gandhi, O.P.1    Chen, X.B.2
  • 15
    • 3142535158 scopus 로고    scopus 로고
    • Reduction of wave phenomena in high-field MRI experiments using absorbing layers
    • Caserta J, Beck BL, Fitzsimmons JR. Reduction of wave phenomena in high-field MRI experiments using absorbing layers. J. Magn. Reson. 2004; 169: 187-195.
    • (2004) J. Magn. Reson. , vol.169 , pp. 187-195
    • Caserta, J.1    Beck, B.L.2    Fitzsimmons, J.R.3
  • 17
    • 11344249938 scopus 로고    scopus 로고
    • An object-oriented designed finite-difference time-domain simulator for electromagnetic analysis and design in MRI-applications to high field analyses
    • Wei Q, Liu F, Xia L, Crozier S. An object-oriented designed finite-difference time-domain simulator for electromagnetic analysis and design in MRI-applications to high field analyses. J. Magn. Reson. 2005; 172: 222-230.
    • (2005) J. Magn. Reson. , vol.172 , pp. 222-230
    • Wei, Q.1    Liu, F.2    Xia, L.3    Crozier, S.4
  • 18
    • 2942579258 scopus 로고    scopus 로고
    • Electromagnetic fields inside a lossy, multi-layered spherical head phantom excited by MRI coils: Models and methods
    • Liu F, Crozier S. Electromagnetic fields inside a lossy, multi-layered spherical head phantom excited by MRI coils: models and methods. Phys. Med. Biol. 2004; 49: 1835-1851.
    • (2004) Phys. Med. Biol. , vol.49 , pp. 1835-1851
    • Liu, F.1    Crozier, S.2
  • 20
    • 0033770165 scopus 로고    scopus 로고
    • Computational analysis of the high pass birdcage resonator: Finite difference time domain simulations for high-field MRI
    • Ibrahim TS, Lee R, Baertlein BA, Yu Y, Robitaille P-ML. Computational analysis of the high pass birdcage resonator: finite difference time domain simulations for high-field MRI. Magn. Res. Imag. 2000; 18: 835-843.
    • (2000) Magn. Res. Imag. , vol.18 , pp. 835-843
    • Ibrahim, T.S.1    Lee, R.2    Baertlein, B.A.3    Yu, Y.4    Robitaille, P.-M.L.5
  • 21
    • 84894021661 scopus 로고
    • Numerical solutions of the initial boundary value problems involving Maxwell's equations in isotropic media
    • Yee KS. Numerical solutions of the initial boundary value problems involving Maxwell's equations in isotropic media. IEEE Trans. Ant. Prop. 1966; 14: 302-317.
    • (1966) IEEE Trans. Ant. Prop. , vol.14 , pp. 302-317
    • Yee, K.S.1
  • 23
    • 0034405181 scopus 로고    scopus 로고
    • The principle of reciprocity in signal strength calculations: A mathematical guide
    • Hoult DI. The principle of reciprocity in signal strength calculations: a mathematical guide. Concepts Magn. Res. 2000; 12: 173-187.
    • (2000) Concepts Magn. Res. , vol.12 , pp. 173-187
    • Hoult, D.I.1
  • 24
    • 24144440068 scopus 로고    scopus 로고
    • Analytical approach to the MR signal
    • Ibrahim TS. Analytical approach to the MR signal. Magn. Res. Med. 2005; 54: 677-682.
    • (2005) Magn. Res. Med. , vol.54 , pp. 677-682
    • Ibrahim, T.S.1
  • 25
    • 0004025251 scopus 로고
    • High-frequency coil system for magnetic resonance imaging apparatus
    • US Patent 4,746,866
    • Roschmann PK. High-frequency coil system for magnetic resonance imaging apparatus. US Patent 4,746,866, 1988.
    • (1988)
    • Roschmann, P.K.1
  • 27
    • 0028067128 scopus 로고
    • The design and test of a new volume coil for high field imaging
    • Wen H, Chesnick AS, Balaban RS. The design and test of a new volume coil for high field imaging. Magn. Reson. Med. 1994; 32: 492-498.
    • (1994) Magn. Reson. Med. , vol.32 , pp. 492-498
    • Wen, H.1    Chesnick, A.S.2    Balaban, R.S.3
  • 29
    • 0034740525 scopus 로고    scopus 로고
    • Analysis of B1 field profiles and SAR values for multi-strut transverse electromagnetic RF coils in high field MRI application
    • Ibrahim TS, Abduljalil AM, Lee R, Baertlein BA, Robitaille P-ML. Analysis of B1 field profiles and SAR values for multi-strut transverse electromagnetic RF coils in high field MRI application. Phys. Med. Biol. 2001; 46: 2545-2555.
    • (2001) Phys. Med. Biol. , vol.46 , pp. 2545-2555
    • Ibrahim, T.S.1    Abduljalil, A.M.2    Lee, R.3    Baertlein, B.A.4    Robitaille, P.-M.L.5
  • 30
    • 0002622026 scopus 로고    scopus 로고
    • On the physical feasibility of achieving linear polarization at high-field: Study of the birdcage coil
    • In Philadelphia, PA
    • Ibrahim TS, Lee R, Baertlein BA, Robitaille P-ML. On the physical feasibility of achieving linear polarization at high-field: a study of the birdcage coil. In Proc. 7th Annual Meeting of ISMRM, Philadelphia, PA, 1999; 2058.
    • (1999) Proc. 7th Annual Meeting of ISMRM , pp. 2058
    • Ibrahim, T.S.1    Lee, R.2    Baertlein, B.A.3    Robitaille, P.-M.L.4
  • 31
    • 0033877307 scopus 로고    scopus 로고
    • Application of finite difference time domain method for the design of birdcage RF head coils using multiport excitations
    • Ibrahim TS, Lee R, Baertlein BA, Kangarlu A, Robitaille P-ML. Application of finite difference time domain method for the design of birdcage RF head coils using multiport excitations. Magn. Res, Imag. 2000; 18: 733-742.
    • (2000) Magn. Res, Imag. , vol.18 , pp. 733-742
    • Ibrahim, T.S.1    Lee, R.2    Baertlein, B.A.3    Kangarlu, A.4    Robitaille, P.-M.L.5
  • 33
    • 27644445167 scopus 로고    scopus 로고
    • Optimized whole-body RF coil for imaging applications at 7 Tesla
    • In Miami, FL
    • Ibrahim TS, Abraham R, Abraham D. Optimized whole-body RF coil for imaging applications at 7 Tesla. In Proc. Annual Meeting of ISMRM, Miami, FL, 2005; 820.
    • (2005) Proc. Annual Meeting of ISMRM , pp. 820
    • Ibrahim, T.S.1    Abraham, R.2    Abraham, D.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.