메뉴 건너뛰기




Volumn 68, Issue 4, 2012, Pages 1117-1126

Patient-individual local SAR determination: In vivo measurements and numerical validation

Author keywords

local SAR; RF safety; SAR measurement; SAR validation; transmit phase

Indexed keywords

ANTENNAS;

EID: 84864121005     PISSN: 07403194     EISSN: 15222594     Source Type: Journal    
DOI: 10.1002/mrm.23322     Document Type: Article
Times cited : (90)

References (46)
  • 5
    • 0032252606 scopus 로고    scopus 로고
    • SAR and B1 field distributions in a heterogeneous human head model within a birdcage coil
    • Collins C, Li S, Smith M,. 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.1    Li, S.2    Smith, M.3
  • 7
    • 84894021661 scopus 로고
    • Numerical solution of initial boundary value problems involving Maxwell's equations in isotropic media
    • Yee K,. Numerical solution of initial boundary value problems involving Maxwell's equations in isotropic media. IEEE Trans Antennas Propag 1966; 14: 302-307.
    • (1966) IEEE Trans Antennas Propag , vol.14 , pp. 302-307
    • Yee, K.1
  • 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 J,. Numerical simulation of SAR and B1-field inhomogeneity of shielded RF coils loaded with the human head. IEEE Trans Biomed Eng 1998; 45: 650-659.
    • (1998) IEEE Trans Biomed Eng , vol.45 , pp. 650-659
    • Chen, J.1    Feng, Z.2    Jin, J.3
  • 10
    • 76149119483 scopus 로고    scopus 로고
    • Numerical study of RF exposure and the resulting temperature rise in the foetus during a magnetic resonance procedure
    • Hand J, Li Y, Hajnal J,. Numerical study of RF exposure and the resulting temperature rise in the foetus during a magnetic resonance procedure. Phys Med Biol 2010; 55: 913-930.
    • (2010) Phys Med Biol , vol.55 , pp. 913-930
    • Hand, J.1    Li, Y.2    Hajnal, J.3
  • 11
    • 34547890652 scopus 로고    scopus 로고
    • SAR and temperature: Simulations and comparison to regulatory limits for MRI
    • Wang Z, Lin J, Mao W, Liu W, Smith M, Collins C,. SAR and temperature: simulations and comparison to regulatory limits for MRI. J Magn Reson Imaging 2007; 26: 437-441.
    • (2007) J Magn Reson Imaging , vol.26 , pp. 437-441
    • Wang, Z.1    Lin, J.2    Mao, W.3    Liu, W.4    Smith, M.5    Collins, C.6
  • 12
    • 3242718767 scopus 로고    scopus 로고
    • Numerical evaluation of heating of the human head due to magnetic resonance imaging
    • Nguyen U, Brown J, Chang I, Krycia J, Mirotznik M,. Numerical evaluation of heating of the human head due to magnetic resonance imaging. IEEE Trans Biomed Eng 2004; 51: 1301-1309.
    • (2004) IEEE Trans Biomed Eng , vol.51 , pp. 1301-1309
    • Nguyen, U.1    Brown, J.2    Chang, I.3    Krycia, J.4    Mirotznik, M.5
  • 13
    • 0034900050 scopus 로고    scopus 로고
    • Radio frequency magnetic field mapping of a 3 Tesla birdcage coil: Experimental and theoretical dependence on sample properties
    • Alecci M, Collins C, Smith M, Jezzard P,. Radio frequency magnetic field mapping of a 3 Tesla birdcage coil: experimental and theoretical dependence on sample properties. Magn Reson Med 2001; 46: 379-385.
    • (2001) Magn Reson Med , vol.46 , pp. 379-385
    • Alecci, M.1    Collins, C.2    Smith, M.3    Jezzard, P.4
  • 15
    • 0003996952 scopus 로고    scopus 로고
    • National Library of Medicine National Institutes of Health. Bethesda, MD
    • National Library of Medicine. The Visible Human Project, National Institutes of Health. Bethesda, MD; 1996.
    • (1996) The Visible Human Project
  • 16
    • 0029957193 scopus 로고    scopus 로고
    • The dielectric properties of biological tissues. III. Parametric models for the dielectric spectrum of tissues
    • Gabriel S, Lau R, Gabriel C,. The dielectric properties of biological tissues. III. Parametric models for the dielectric spectrum of tissues. Phys Med Biol 1996; 41: 2271-2293.
    • (1996) Phys Med Biol , vol.41 , pp. 2271-2293
    • Gabriel, S.1    Lau, R.2    Gabriel, C.3
  • 18
    • 26044442541 scopus 로고    scopus 로고
    • Calculations of B1 distribution, specific energy absorption rate, and intrinsic signal-to-noise ratio for a body-size birdcage coil loaded with different human subjects at 64 and 128 MHz
    • Liu W, Collins C, Smith M,. Calculations of B1 distribution, specific energy absorption rate, and intrinsic signal-to-noise ratio for a body-size birdcage coil loaded with different human subjects at 64 and 128 MHz. Appl Magn Reson 2005; 29: 5-18.
    • (2005) Appl Magn Reson , vol.29 , pp. 5-18
    • Liu, W.1    Collins, C.2    Smith, M.3
  • 19
    • 84866733411 scopus 로고    scopus 로고
    • Numerical simulation of SAR for 3T whole body coil: Effect of patient loading positions on local SAR hotspot
    • Stockholm, Sweden
    • Chen X, Hamamura Y, Steckner M,. Numerical simulation of SAR for 3T whole body coil: effect of patient loading positions on local SAR hotspot. In: Proceedings of the 18th Annual Meeting of ISMRM, Stockholm, Sweden; 2010, p 3879.
    • (2010) Proceedings of the 18th Annual Meeting of ISMRM , pp. 3879
    • Chen, X.1    Hamamura, Y.2    Steckner, M.3
  • 20
    • 0034058842 scopus 로고    scopus 로고
    • Variability in EMF Permittivity Values: Implications for SAR Calculations
    • Hurt W, Ziriax J, Mason P,. Variability in EMF Permittivity Values: implications for SAR Calculations. IEEE Trans Biomed Eng 2000; 47: 396-401.
    • (2000) IEEE Trans Biomed Eng , vol.47 , pp. 396-401
    • Hurt, W.1    Ziriax, J.2    Mason, P.3
  • 25
    • 73349094324 scopus 로고    scopus 로고
    • Experimental and numerical assessment of MRI-induced temperature change and SAR distributions in phantoms and in vivo
    • Oh S, Webb A, Neuberger T, Park B, Collins C,. Experimental and numerical assessment of MRI-induced temperature change and SAR distributions in phantoms and in vivo. Magn Reson Med 2010; 63: 218-223.
    • (2010) Magn Reson Med , vol.63 , pp. 218-223
    • Oh, S.1    Webb, A.2    Neuberger, T.3    Park, B.4    Collins, C.5
  • 26
    • 79960584785 scopus 로고    scopus 로고
    • Quantitative conductivity and permittivity imaging of the human brain using electric properties tomography
    • Voigt T, Katscher U, Doessel O,. Quantitative conductivity and permittivity imaging of the human brain using electric properties tomography. Magn Reson Med 2011; 66: 456-466.
    • (2011) Magn Reson Med , vol.66 , pp. 456-466
    • Voigt, T.1    Katscher, U.2    Doessel, O.3
  • 27
  • 28
    • 33846078031 scopus 로고    scopus 로고
    • Actual flip-angle imaging in the pulsed steady state: A method for rapid three-dimensional mapping of the transmitted radiofrequency field
    • Yarnykh VL,. Actual flip-angle imaging in the pulsed steady state: a method for rapid three-dimensional mapping of the transmitted radiofrequency field. Magn Reson Med 2007; 57: 192-200.
    • (2007) Magn Reson Med , vol.57 , pp. 192-200
    • Yarnykh, V.L.1
  • 32
    • 0042376260 scopus 로고    scopus 로고
    • Noninvasive quantitative mapping of conductivity and dielectric distributions using RF wave propagation effects in high-field MRI
    • Wen H,. Noninvasive quantitative mapping of conductivity and dielectric distributions using RF wave propagation effects in high-field MRI. Proc SPIE 2003; 5030: 471-477.
    • (2003) Proc SPIE , vol.5030 , pp. 471-477
    • Wen, H.1
  • 35
    • 57349118673 scopus 로고    scopus 로고
    • Eddy current compensation
    • Bernstein M.A. King K.F. Zhou X.J. Academic Press, Burlington, MA
    • King KF,. Eddy current compensation. In:, Bernstein MA, King KF, Zhou XJ,. Handbook of MRI Pulse Sequences. Academic Press, Burlington, MA; 2004. pp 316-331.
    • (2004) Handbook of MRI Pulse Sequences , pp. 316-331
    • King, K.F.1
  • 36
    • 0003031074 scopus 로고    scopus 로고
    • An algorithm for computations of the power deposition in human tissue
    • Caputa K, Okoniewski M, Stuchly M,. An algorithm for computations of the power deposition in human tissue. IEEE Trans Antennas Propag 1999; 41: 102-107.
    • (1999) IEEE Trans Antennas Propag , vol.41 , pp. 102-107
    • Caputa, K.1    Okoniewski, M.2    Stuchly, M.3
  • 37
    • 0042553279 scopus 로고
    • Smoothing and differentiation of data by simplified least square procedures
    • Savitzky A, Golay MJ,. Smoothing and differentiation of data by simplified least square procedures. Anal Chem 1964; 36: 1627-1639.
    • (1964) Anal Chem , vol.36 , pp. 1627-1639
    • Savitzky, A.1    Golay, M.J.2
  • 38
    • 0025831477 scopus 로고
    • Three-point Dixon technique for true water/fat decomposition with B0 inhomogeneity correction
    • Glover GH, Schneider E,. Three-point Dixon technique for true water/fat decomposition with B0 inhomogeneity correction. Magn Reson Med 1991; 18: 371-383.
    • (1991) Magn Reson Med , vol.18 , pp. 371-383
    • Glover, G.H.1    Schneider, E.2
  • 39
    • 0041326692 scopus 로고    scopus 로고
    • Spatial resolution of numerical models of man and calculated specific absorption rate using the FDTD method: A study at 64 MHz in a magnetic resonance imaging coil
    • Collins, C, Smith, M,. Spatial resolution of numerical models of man and calculated specific absorption rate using the FDTD method: a study at 64 MHz in a magnetic resonance imaging coil. J Magn Reson Imaging 2003; 18: 383-388.
    • (2003) J Magn Reson Imaging , vol.18 , pp. 383-388
    • Collins, C.1    Smith, M.2
  • 41
    • 79954774065 scopus 로고    scopus 로고
    • Calculation of radiofrequency electromagnetic fields and their effects in MRI of human subjects
    • Collins C, Wang Z,. Calculation of radiofrequency electromagnetic fields and their effects in MRI of human subjects. Magn Reson Med 2011; 65: 1470-1482.
    • (2011) Magn Reson Med , vol.65 , pp. 1470-1482
    • Collins, C.1    Wang, Z.2
  • 42
    • 12844266240 scopus 로고    scopus 로고
    • Measurement and correction of transmitter and receiver induced nonuniformities in vivo
    • Wang J, Qiu M, Yang QX, Smith MB, Constable RT,. Measurement and correction of transmitter and receiver induced nonuniformities in vivo. Magn Reson Med 2005; 53: 408-417.
    • (2005) Magn Reson Med , vol.53 , pp. 408-417
    • Wang, J.1    Qiu, M.2    Yang, Q.X.3    Smith, M.B.4    Constable, R.T.5
  • 45
    • 2442570617 scopus 로고    scopus 로고
    • Temperature and SAR calculations for a human head within volume and surface coils at 64 and 300 MHz
    • Collins C, Liu W, Wang J, Gruetter R, Vaughan J, Ugurbil K, Smith M,. Temperature and SAR calculations for a human head within volume and surface coils at 64 and 300 MHz. J Magn Reson Imaging 2004; 19: 650-656.
    • (2004) J Magn Reson Imaging , vol.19 , pp. 650-656
    • Collins, C.1    Liu, W.2    Wang, J.3    Gruetter, R.4    Vaughan, J.5    Ugurbil, K.6    Smith, M.7
  • 46
    • 84888360034 scopus 로고
    • Analysis of tissue and arterial blood temperatures in the resting human forearm
    • Pennes H,. Analysis of tissue and arterial blood temperatures in the resting human forearm. J Appl Physiol 1948; 1: 93-122.
    • (1948) J Appl Physiol , vol.1 , pp. 93-122
    • Pennes, H.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.