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Volumn 25, Issue 3, 2012, Pages 193-204

Local SAR management by RF Shimming: A simulation study with multiple human body models

Author keywords

Anatomical models; Chemical shift imaging; MRI; Safety

Indexed keywords

ALGORITHM; ARTICLE; BIOLOGICAL MODEL; COMPUTER ASSISTED DIAGNOSIS; COMPUTER SIMULATION; HUMAN; IMAGE ENHANCEMENT; IMAGE QUALITY; INSTRUMENTATION; METHODOLOGY; NUCLEAR MAGNETIC RESONANCE IMAGING; REPRODUCIBILITY; SENSITIVITY AND SPECIFICITY; WHOLE BODY IMAGING;

EID: 84862002241     PISSN: 09685243     EISSN: None     Source Type: Journal    
DOI: 10.1007/s10334-011-0281-8     Document Type: Article
Times cited : (57)

References (43)
  • 2
    • 1842586446 scopus 로고    scopus 로고
    • Parallel Excitation with an Array of Transmit Coils
    • DOI 10.1002/mrm.20011
    • Y Zhu 2004 Parallel excitation with an array of transmit coils Magn Reson Med 51 4 775 784 15065251 10.1002/mrm.20011 (Pubitemid 38420455)
    • (2004) Magnetic Resonance in Medicine , vol.51 , Issue.4 , pp. 775-784
    • Zhu, Y.1
  • 4
    • 0033945956 scopus 로고    scopus 로고
    • Sensitivity and power deposition in a high-field imaging experiment
    • D Hoult 2000 Sensitivity and power deposition in a high-field imaging experiment J Magn Reson Imaging 12 1 46 67 10931564 10.1002/1522-2586(200007)12: 1<46::AID-JMRI6>3.0.CO;2-D 1:STN:280:DC%2BD3M%2FksVahsQ%3D%3D (Pubitemid 30437264)
    • (2000) Journal of Magnetic Resonance Imaging , vol.12 , Issue.1 , pp. 46-67
    • Hoult, D.I.1    Phil, D.2
  • 5
    • 0035685766 scopus 로고    scopus 로고
    • Effect of RF coil excitation on field inhomogeneity at ultra high fields: A field optimized TEM resonatior
    • DOI 10.1016/S0730-725X(01)00404-0, PII S0730725X01004040
    • T Ibrahim R Lee B Baertlein A Abduljalil H Zhu P Robitaille 2001 Effect of RF coil excitation on field inhomogeneity at ultra high fields: a field optimized TEM resonator Magn Reson Imaging 19 10 1339 1347 11804762 10.1016/S0730-725X(01)00404-0 1:STN:280:DC%2BD38%2FnvVymsw%3D%3D (Pubitemid 34081298)
    • (2001) Magnetic Resonance Imaging , vol.19 , Issue.10 , pp. 1339-1347
    • Ibrahim, T.S.1    Lee, R.2    Baertlein, B.A.3    Abduljalil, A.M.4    Zhu, H.5    Robitaille, P.-M.L.6
  • 9
    • 77954683399 scopus 로고    scopus 로고
    • Determination of electric conductivity and local SAR via B1 mapping
    • 19369153 10.1109/TMI.2009.2015757
    • U Katscher T Voigt C Findeklee P Vernickel K Nehrke O Dössel 2009 Determination of electric conductivity and local SAR via B1 mapping IEEE Trans Med Imaging 28 9 1365 1374 19369153 10.1109/TMI.2009.2015757
    • (2009) IEEE Trans Med Imaging , vol.28 , Issue.9 , pp. 1365-1374
    • Katscher, U.1    Voigt, T.2    Findeklee, C.3    Vernickel, P.4    Nehrke, K.5    Dössel, O.6
  • 11
    • 73349106624 scopus 로고    scopus 로고
    • A conservative method for ensuring safety within transmit arrays
    • Berlin, Germany
    • Collins C, Wang Z, Smith M (2007) A conservative method for ensuring safety within transmit arrays. In: Proceedings of the ISMRM, Berlin, Germany, p 1092
    • (2007) Proceedings of the ISMRM , pp. 1092
    • Collins, C.1    Wang, Z.2    Smith, M.3
  • 13
    • 79961061978 scopus 로고    scopus 로고
    • SAR assessment of transmit arrays: Deterministic calculation of worst- and best-case performance
    • Honolulu, Hawaii, USA
    • Brunner D, Paska J, Fröhlich J, Prüssmann K (2009) SAR assessment of transmit arrays: deterministic calculation of worst- and best-case performance. In: Proceedings of the ISMRM, Honolulu, Hawaii, USA, p 4803
    • (2009) Proceedings of the ISMRM , pp. 4803
    • Brunner, D.P.1
  • 15
    • 78349289287 scopus 로고    scopus 로고
    • Local SAR reduction in parallel excitation based on channel-dependent Tikhonov parameters
    • 21031527 10.1002/jmri.22346
    • M Cloos M Luong G Ferrand A Amadon D Le Bihan N Boulant 2010 Local SAR reduction in parallel excitation based on channel-dependent Tikhonov parameters J Magn Reson Imaging 32 5 1209 1216 21031527 10.1002/jmri.22346
    • (2010) J Magn Reson Imaging , vol.32 , Issue.5 , pp. 1209-1216
    • Cloos, M.1    Luong, M.2    Ferrand, G.3    Amadon, A.4    Le Bihan, D.5    Boulant, N.6
  • 18
    • 77955297704 scopus 로고    scopus 로고
    • Optimal design of multiple-channel RF pulses under strict power and SAR constraints
    • 20432299 10.1002/mrm.22330
    • D Brunner K Prüssmann 2010 Optimal design of multiple-channel RF pulses under strict power and SAR constraints Magn Reson Med 63 5 1280 1291 20432299 10.1002/mrm.22330
    • (2010) Magn Reson Med , vol.63 , Issue.5 , pp. 1280-1291
    • Brunner, D.1    Prüssmann, K.2
  • 19
    • 51649124376 scopus 로고    scopus 로고
    • Designing RF pulses with optimal specific absorption rate (SAR) characteristics and exploring excitation fidelity, SAR and pulse duration tradeoffs
    • Berlin, Germany
    • Zelinski A, Goyal V, Angelone L, Bonmassar G, Wald L, Adalsteinsson E (2007) Designing RF pulses with optimal specific absorption rate (SAR) characteristics and exploring excitation fidelity, SAR and pulse duration tradeoffs. In: Proceedings of the ISMRM, Berlin, Germany, p 1699
    • (2007) Proceedings of the ISMRM , pp. 1699
    • Zelinski, A.1    Goyal, V.2    Angelone, L.3    Bonmassar, G.4    Wald, L.5    Adalsteinsson, E.6
  • 20
    • 26044442541 scopus 로고    scopus 로고
    • 1 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
    • W Liu C Collins M Smith 2005 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 29 1 5 18 10.1007/BF03166953 (Pubitemid 41405608)
    • (2005) Applied Magnetic Resonance , vol.29 , Issue.1 , pp. 5-18
    • Liu, W.1    Collins, C.M.2    Smith, M.B.3
  • 21
    • 79960592611 scopus 로고    scopus 로고
    • A comparison of local SAR using individual patient data and a patient template
    • Honolulu, Hawaii, USA
    • Buchenau S, Haas M, Hennig J, Zaitsev M (2009) A comparison of local SAR using individual patient data and a patient template. In: Proceedings of the ISMRM, Honolulu, Hawaii, USA, p 4798
    • (2009) Proceedings of the ISMRM , pp. 4798
    • Buchenau, S.1    Haas, M.2    Hennig, J.3    Zaitsev, M.4
  • 22
    • 81355157180 scopus 로고    scopus 로고
    • A study of the relationship between B1-field uniformity, body aspect ratio and SAR for whole-body RF Shimming at 3.0T
    • Honolulu, Hawaii, USA
    • Zhai Z, Morich M, DeMeester G, Harvey P (2009) A study of the relationship between B1-field uniformity, body aspect ratio and SAR for whole-body RF Shimming at 3.0T. In: Proceedings of the ISMRM, Honolulu, Hawaii, USA, p 3045
    • (2009) Proceedings of the ISMRM , pp. 3045
    • Zhai, Z.1    Morich, M.2    Demeester, G.3    Harvey, P.4
  • 24
    • 79954873213 scopus 로고    scopus 로고
    • Poseable male and female numerical body models for field calculations in MRI
    • Toronto, Canada
    • Wang Z, Penney C, Luebbers R, Collins C (2008) Poseable male and female numerical body models for field calculations in MRI. In: Proceedings of the ISMRM, Toronto, Canada, p 75
    • (2008) Proceedings of the ISMRM , pp. 75
    • Wang, Z.1    Penney, C.2    Luebbers, R.3    Collins, C.4
  • 25
    • 79955397165 scopus 로고    scopus 로고
    • Local specific absorption rate in high-pass birdcage and transverse electromagnetic body coils for multiple human body models in clinical landmark positions at 3T
    • 21509880 10.1002/jmri.22544
    • D Yeo Z Wang W Loew M Vogel I Hancu 2011 Local specific absorption rate in high-pass birdcage and transverse electromagnetic body coils for multiple human body models in clinical landmark positions at 3T J Magn Reson Imaging 33 5 1209 1217 21509880 10.1002/jmri.22544
    • (2011) J Magn Reson Imaging , vol.33 , Issue.5 , pp. 1209-1217
    • Yeo, D.1    Wang, Z.2    Loew, W.3    Vogel, M.4    Hancu, I.5
  • 26
    • 81355147745 scopus 로고    scopus 로고
    • Towards individualized SAR models and in vivo validation
    • (in early view). doi: 10.1002/mrm.22948
    • Homann H, Börnert P, Eggers H, Nehrke K, Dössel O, Graesslin I (2011a) Towards individualized SAR models and in vivo validation. Magn Reson Med (in early view). doi: 10.1002/mrm.22948
    • (2011) Magn Reson Med
    • Homann, H.B.1
  • 27
    • 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
    • DOI 10.1002/mrm.21120
    • V Yarnykh 2007 Actual flip-angle imaging in the pulsed steady state: a method for rapid three-dimensional mapping of the transmitted radiofrequency field Magn Reson Med 57 1 192 200 17191242 10.1002/mrm.21120 (Pubitemid 46067949)
    • (2007) Magnetic Resonance in Medicine , vol.57 , Issue.1 , pp. 192-200
    • Yarnykh, V.L.1
  • 31
    • 0029411984 scopus 로고
    • SAR optimization in a phased array radiofrequency hyperthermia system
    • 8550062 10.1109/10.476127 1:STN:280:DyaK287islOhuw%3D%3D
    • F Bardati A Borrani A Gerardino G Lovisolo 1995 SAR optimization in a phased array radiofrequency hyperthermia system IEEE Trans Biomed Eng 42 12 1201 1207 8550062 10.1109/10.476127 1:STN:280:DyaK287islOhuw%3D%3D
    • (1995) IEEE Trans Biomed Eng , vol.42 , Issue.12 , pp. 1201-1207
    • Bardati, F.1    Borrani, A.2    Gerardino, A.3    Lovisolo, G.4
  • 32
    • 80054824687 scopus 로고    scopus 로고
    • Evaluation of maximum local SAR for parallel transmission (pTx) pulses based on pre-calculated field data using a selected subset of virtual observation points
    • Stockholm, Sweden
    • Gebhardt M, Diehl D, Adalsteinsson E, Wald L, Eichfelder G (2010) Evaluation of maximum local SAR for parallel transmission (pTx) pulses based on pre-calculated field data using a selected subset of virtual observation points. In: Proceedings of the ISMRM, Stockholm, Sweden, p 1441
    • (2010) Proceedings of the ISMRM , pp. 1441
    • Gebhardt, M.1    Diehl, D.2    Adalsteinsson, E.3    Wald, L.4    Eichfelder, G.5
  • 33
    • 80054808213 scopus 로고    scopus 로고
    • Local specific absorption rate control for parallel transmission by virtual observation points
    • (in early view). doi: 10.1002/mrm.22927
    • Eichfelder G, Gebhardt M (2011) Local specific absorption rate control for parallel transmission by virtual observation points. Magn Reson Med (in early view). doi: 10.1002/mrm.22927
    • (2011) Magn Reson Med
    • Eichfelder, G.1    Gebhardt, M.2
  • 34
    • 51649087790 scopus 로고    scopus 로고
    • RF Shimming considering both excitation homogeneity and SAR
    • Berlin, Germany
    • Wang Z, Oh S, Smith M, Collins C (2007b) RF Shimming considering both excitation homogeneity and SAR. In: Proceedings of the ISMRM, Berlin, Germany, p 1022
    • (2007) Proceedings of the ISMRM , pp. 1022
    • Wang, Z.1    Oh, S.2    Smith, M.3    Collins, C.4
  • 35
    • 41849141981 scopus 로고    scopus 로고
    • Magnitude least squares optimization for parallel radio frequency excitation design demonstrated at 7 tesla with eight channels
    • DOI 10.1002/mrm.21513
    • K Setsompop L Wald V Alagappan B Gagoski E Adalsteinsson 2008 Magnitude least squares optimization for parallel radio frequency excitation design demonstrated at 7 Tesla with eight channels Magn Reson Med 59 4 908 915 18383281 10.1002/mrm.21513 1:STN:280:DC%2BD1c3isFOrsA%3D%3D (Pubitemid 351501959)
    • (2008) Magnetic Resonance in Medicine , vol.59 , Issue.4 , pp. 908-915
    • Setsompop, K.1    Wald, L.L.2    Alagappan, V.3    Gagoski, B.A.4    Adalsteinsson, E.5
  • 38
    • 0003031074 scopus 로고    scopus 로고
    • An algorithm for computations of the power deposition in human tissue
    • 10.1109/74.789742
    • K Caputa M Okoniewski M Stuchly 1999 An algorithm for computations of the power deposition in human tissue IEEE Antennas Propag Mag 41 4 102 107 10.1109/74.789742
    • (1999) IEEE Antennas Propag Mag , vol.41 , Issue.4 , pp. 102-107
    • Caputa, K.1    Okoniewski, M.2    Stuchly, M.3
  • 39
    • 84862000940 scopus 로고    scopus 로고
    • Method and tool for improved, rapid N-gram average SAR determination
    • Montreal, Canada
    • Oh S, Carluccio G, Collins C (2011) Method and tool for improved, rapid N-gram average SAR determination. In: Proceedings of the ISMRM, Montreal, Canada, p 3868
    • (2011) Proceedings of the ISMRM , pp. 3868
    • Oh, S.1    Carluccio, G.2    Collins, C.3
  • 40
    • 0022362343 scopus 로고
    • Estimating radiofrequency power deposition in body NMR imaging
    • DOI 10.1002/mrm.1910020404
    • P Bottomley R Redington W Edelstein J Schenck 1985 Estimating radiofrequency power deposition in body NMR imaging Magn Reson Med 2 4 336 349 4094551 10.1002/mrm.1910020404 1:STN:280:DyaL287ks1Wqsw%3D%3D (Pubitemid 15228815)
    • (1985) Magnetic Resonance in Medicine , vol.2 , Issue.4 , pp. 336-349
    • Bottomley, P.A.1    Redington, R.W.2    Edelstein, W.A.3    Schenck, J.F.4
  • 41
    • 84862016524 scopus 로고    scopus 로고
    • The influence of body size on the specific absorption rate (SAR)
    • Homann H, Graesslin I, Voigt T, Börnert P, Dössel O (2009) The influence of body size on the specific absorption rate (SAR). In: Proceedings of the ESMRMB (Magma 22, Suppl 1), p 522
    • (2009) Proceedings of the ESMRMB (Magma 22, Suppl 1) , pp. 522
    • Homann, H.G.1
  • 43
    • 84862010484 scopus 로고    scopus 로고
    • A robust concept for real-time SAR calculation in parallel transmission
    • Montreal, Canada
    • Homann H, Börnert P, Dössel O, Graesslin I (2011b) A robust concept for real-time SAR calculation in parallel transmission. In: Proceedings of the ISMRM, Montreal, Canada, p 3843
    • (2011) Proceedings of the ISMRM , pp. 3843
    • Homann, H.1    Börnert, P.2    Dössel, O.3    Graesslin, I.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.