KT-points: Short three-dimensional tailored RF pulses for flip-angle homogenization over an extended volume

Magnetic Resonance in Medicine

Volumn 67, Issue 1, 2012, Pages 72-80

  Cloos, M A ^a,b   Boulant, N ^a   Luong, M ^b   Ferrand, G ^b   Giacomini, E ^a   Le Bihan, D ^a   Amadon, A ^a  

^a DIF   (France)

^b CEA SACLAY   (France)

Author keywords

non selective excitation; parallel transmission; tailored RF pulses

Indexed keywords

CIRCULARLY POLARIZED; EXPERIMENTAL VERIFICATION; FLIP-ANGLE UNIFORMITIES; NON-SELECTIVE EXCITATIONS; PARALLEL TRANSMISSION; RADIO-FREQUENCY ENERGY; RF PULSE; STANDARD DEVIATION;

RADIO WAVES;

ARTICLE; BRAIN; ENERGY; EXCITATION; FEASIBILITY STUDY; HUMAN; MEDICAL LITERATURE; RADIOFREQUENCY; SENSITIVITY ANALYSIS; THREE DIMENSIONAL IMAGING; VOLUNTEER; ALGORITHM; AUTOMATED PATTERN RECOGNITION; COMPUTER ASSISTED DIAGNOSIS; HISTOLOGY; IMAGE ENHANCEMENT; METHODOLOGY; NUCLEAR MAGNETIC RESONANCE IMAGING; ORGAN SIZE; REPRODUCIBILITY; SENSITIVITY AND SPECIFICITY;

ALGORITHMS; BRAIN; HUMANS; IMAGE ENHANCEMENT; IMAGE INTERPRETATION, COMPUTER-ASSISTED; IMAGING, THREE-DIMENSIONAL; MAGNETIC RESONANCE IMAGING; ORGAN SIZE; PATTERN RECOGNITION, AUTOMATED; REPRODUCIBILITY OF RESULTS; SENSITIVITY AND SPECIFICITY;

EID: 84355163085     PISSN: 07403194     EISSN: 15222594     Source Type: Journal    
DOI: 10.1002/mrm.22978     Document Type: Article

References (47)

1. Yang QX, Wang J, Zhang X, Collins CM, Smith MB, Liu H, Zhu X, Vaughan T, Ugurbil K, Chen W,. Analysis of wave behavior in lossy dielectric samples at high field. Magn Reson Med 2002; 47: 982-989.
2. 1 destructive interferences and spatial phase patterns at 7T with a head transceiver array coil. Magn Reson Med 2005; 54: 1503-1518. (Pubitemid 41740779)
3. Carr HY, Purcell EM,. Effects of diffusion on free precession in nuclear magnetic resonance experiments. Phys Rev 1954; 94: 630-638.
4. Meiboom S, Gill D,. Modified spin-echo method for measuring nuclear relaxation times. Rev Sci Instrum 1958; 29: 688-691.
5. Baum J, Tycko R, Pines A,. Broadband and adiabatic inversion of a two-level system by phase-modulated pulses. Phys Rev A 1985; 32: 3435-3447.
6. Silver MS, Joseph RI, Hoult DI,. Selective spin inversion in nuclear magnetic resonance and coherent optics through an exact solution of the Bloch-Riccati equation. Phys Rev A 1985; 31: 2753-2755.
7. Staewen RS, Johnson AJ, Ross BD, Parrish T, Merkle H, Garwood M,. 3D flash imaging using a single surface coil and a new adiabatic pulse, BIR-4. Invest Radiol 1990; 25: 559-567. (Pubitemid 20173102)
8. Boulant N, Le Bihan D, Amadon A,. Strongly modulating pulses for counteracting RF inhomogeneity at high fields. Magn Reson Med 2008; 60: 701-708.
9. Boulant N, Mangin N, Amadon A,. Counteracting radio frequency inhomogeneity in the human brain at 7 Tesla using strongly modulated pulses. Magn Reson Med 2009; 61: 1165-1172.
10. Pauly J, Nishimura D, Macovski A,. A k-space analysis of the small-tip-angle excitation. J Magn Reson 1998; 81: 43-56.
11. 1 inhomogeneity at 3T. Magn Reson Med 2005; 53: 479-484. (Pubitemid 40171064)
12. z three-dimensional tailored radiofrequency pulse for reduced B1 inhomogeneity. Magn Reson Med 2006; 55: 719-724.
13. Zelinski AC, Wald LL, Setsompop K, Alagappan V, Gagoski BA, Goyal VK, Adelsteinsson E,. Fast slice-selective radio-frequency excitation pulses for mitigating B1 inhomogeneity in the human brain at 7 Tesla. Magn Reson Med 2008; 59: 1355-1364. (Pubitemid 351813265)
14. Katscher U, Bornert P, Leussler C, vd Brink JS,. Transmit SENSE. Magn Reson Med 2003; 49: 144-150. (Pubitemid 36042344)
15. Zhu Y,. Parallel excitation with an array of transmit coils. Magn Reson Med 2004; 51: 775-784. (Pubitemid 38420455)
16. Grissom W, Yip CY, Zhang Z, Stenger VA, Fessler JA, Noll DC,. Spatial domain method for the design of RF pulses in multicoil parallel excitation. Magn Reson Med 2006; 56: 620-629. (Pubitemid 44338881)
17. Mao W, Smith MB, Collins C,. Exploring the limits of RF shimming for high-field MRI of the human head. Magn Reson Med 2006; 56: 918-922. (Pubitemid 44477676)
18. Setsompop K, Alagappan V, Gagoski B, Witzel T, Polimeni J, Potthast A, Hebrank F, Fontius U, Schmitt F, Wald LL, Adalsteinsson E.,. Slice-selective RF pulses for in vivo B1 inhomogeneity mitigation at 7 Tesla using parallel RF excitation with a 16-element coil. Magn Reson Med 2008; 60: 1422-1432.
19. Boulant N,. T1 and T2 effects during radio-frequency pulses in spoiled gradient echo sequences. J Magn Reson 2009; 197: 213-218.
20. Matson G, Liu H,. Computer simulations of 3D MPRAGE in human brain with inclusion of inadvertent magnetization transfer effects. In Proceedings of the 19th Annual Meeting of the ISMRM, Stockholm, Sweden, 2010, p 3008.
21. T points: Fast three-dimensional tailored RF pulses for flip-angle homogenization over an extended volume. In Proceedings of the 19th Annual Meeting of the ISMRM, Stockholm, Sweden, 2010, p 102.
22. Amadon A, Cloos MA,: Method and apparatus for compensating for B1 inhomogeneity in magnetic resonance imaging by non-selective three-dimensional tailored RF pulses, E.U. Patent Application n°10290205; 2010.
23. Zelinski AC, Wald LL, Setsompop K, Goyal VK, Adelsteinsson E,. Sparsity enforced slice-selective MRI RF excitation pulse design. IEEE Trans Med Imaging 2008; 27: 1213-1228.
24. Setsompop K, Wald LL, Alagappan V, Gagoski BA, Adalsteinsson E,. Magnitude least squares optimization for parallel radio frequency excitation design demonstrated at 7 Tesla with eight channels. Magn Reson Med 2008; 59: 908-915. (Pubitemid 351501959)
25. Yip CY, Fessler JA, Noll DC,. Advanced three-dimensional tailored RF pulse for signal recovery in T2-weighted functional magnetic resonance imaging. Magn Reson Med 2006; 56: 1050-1059. (Pubitemid 44691347)
26. Ma C, Xu D, King KF, Liang ZP,. Joined design of spoke trajectories and RF pulses for parallel excitation. Magn Reson Med 2011; 65: 973-985.
27. Hansen PC,. Analysis of discrete ill-posed problems by means of the L-curve. SIAM Rev 1992, 34: 561-580.
28. Cloos MA, Luong M., Ferrand G., Amadon A, Le Bihan D, Boulant N,. Local SAR reduction in parallel excitation based on channel-dependent tikhonov parameters. J Magn Reson Imaging 2010; 32: 1197-1208.
29. Berstein MA, King KF, Zhou XJ,. Handbook of MRI pulse sequences, London: Elsevier Academic Press; 2004.
30. Wiggins CJ, Marion C, Le Bihan D, Schmitt F, Eberlein E,. Use of opposed shim currents for infold reduction on a UHF MRI system with head gradient. In Proceedings of the 19th Annual Meeting of the ISMRM, Stockholm, Sweden, 2010, p 2339.
31. G. Ferrand, M., Luong, A,. France, Antenne pour système IRM, E.U. Patent Application n°1050905; 2010.
32. International Electrotechnical Commission. International standard, medical electrical equipment-Part 2: particular requirements for the safety of magnetic resonance equipment for medical diagnosis, 2nd ed, Geneva: International Electrotechnical Commission; 2002. pp 73-74.
33. Kozlov K, Turner R,. Fast MRI coil analysis based on 3-D electromagnetic and RF circuit co-simulation. J Magn Reson 2009; 200: 147-152.
34. Van de Moortele PF, Snyder C, DelaBarre L, Adriany G, Vaughan T, Ugurbil K,. Calibration tools for RF shim at very high field with multiple element rf coils: from ultra fast local relative phase to absolute magnitude B1+ mapping. In Proceedings of the 15th Annual Meeting of the ISMRM, Berlin, Germany, 2007, p 1676.
35. Rooney WD, Johnson G, Li X, Cohen ER, Kim SG, Ugurbil K, Springer CS,. Magnetic field and tissue dependencies of human brain longitudinal h2o relaxation in vivo. Magn Reson Med 2007; 57: 308-318. (Pubitemid 46214534)
36. Brunner DU, Pruessmann KP,. A matrix approach for mapping array transmit fields in under a minute. In Proceedings of the 16th Annual Meeting of the ISMRM, Toronto, Ontario, Canada, 2008, p 354.
37. 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. (Pubitemid 46067949)
38. Nehrke K,. On the steady-state properties of actual flip angle imaging (AFI). Magn Reson Med 2009; 61: 84-92.
39. Amadon A, Boulant N,. Simultaneous measurement of B0- and B1-maps with modified actual flip angle imaging sequence. In Proceedings of the 16th Annual Meeting of the ISMRM, Toronto, Ontario, Canada, 2008, p 1248.
40. 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. (Pubitemid 40171055)
41. Lee D, Lustig M, Grissom WA, Pauly JM,. Time-optimal design for multidimensional and parallel transmit variable-rate selective excitation. Magn Res Med 2009; 61: 1471-1479.
42. Lee J, Gebhardt M, Wald LL, Adalsteinsson,. Parallel transmit RF design with local sar constraints. In Proceedings of the 18th Annual Meeting of the ISMRM, Stockholm, Sweden, 2010, p 105.
43. Brunner DO, Pruessmann KP,. Optimal design of multiple-channel RF pulses under strict power and SAR constraints. Magn Reson Med 2010; 63: 1280-1291.
44. Grissom WA, Yip C-Y, Wright SM, Fessler JA, Noll DC,. Additive angle method for fast large-tip-angle RF pulse design in parallel excitation. Magn Reson Med 2008; 59: 779-787. (Pubitemid 351501943)
45. Xu D, King KF, Zhu Y, McKinnon GC, Liang Z-P,. Designing multichannel multidimensional, arbitrary flip angle RF pulses using an optimal control approach. Magn Reson Med 2008; 59: 547-560. (Pubitemid 351348226)
46. Gagoski BA, Gumbrecht R, Hamm M, Setsompop K, Keil B, Lee J, Makhoul K, Mareyam A, Fujimoto K, Witzel T, Fontius U, Pfeuffer J, Adalsteinsson E, Wald LL,. Real time RF monitoring in a 7T parallel transmit system. In Proceedings of the 18th Annual Meeting of the ISMRM, Stockholm, Sweden, 2010, p 781.
47. Busse RF, Hariharan H, Vu A, Brittain JH,. Fast spin echo sequences with very long echo trains: design of variable refocusing flip angle schedules and generation of clinical T2 contrast. Magn Reson Med 2006; 55: 1030-1037.