A time-harmonic target-field method for designing shielded RF coils in MRI

Measurement Science and Technology

Volumn 16, Issue 6, 2005, Pages 1381-1393

  While, Peter T ^a   Forbes, Larry K ^a   Crozier, Stuart ^b  

^a UNIVERSITY OF TASMANIA   (Australia)

^b UNIVERSITY OF QUEENSLAND   (Australia)

Author keywords

Coil design; MRI; RF coil; Winding patterns

Indexed keywords

CURRENT DENSITY; ELECTRIC FIELDS; ELECTRIC WINDINGS; FOURIER TRANSFORMS; FUNCTIONS; MAGNETIC FIELDS;

COIL WINDING PATTERNS; FOURIER SERIES EXPANSION; PENALTY FUNCTIONS; RF COILS;

ELECTRIC COILS;

DESIGN; MAGNETIC RESONANCE IMAGING;

EID: 19944407920     PISSN: 09570233     EISSN: 09570233     Source Type: Journal    
DOI: 10.1088/0957-0233/16/6/021     Document Type: Article

References (29)

1. Barberi E A, Gati J S, Rutt B K and Menon R S 2000 A transmit-only/ receive-only (TORO) RF system for high-field MRI/MRS applications Magn. Reson. Med. 43 284-9
2. Brideson M A, Forbes L K and Crozier S 2002 Determining complicated winding patterns for shim coils using streamfunctions and the target-field method Concepts Magn. Reson. 14 9-18
3. Brown R W, Fujita H, Shvartsman S M, Thompson M R, Morich M A, Petropoulos L S and Srivastava V C 1998 New applications of inverse methods in the design of MRI coils Int. J. Appl. Electromagn. Mech. 9 277-90
4. Chronik B A and Rutt B K 1998 Constrained length minimum inductance gradient coil design Magn. Reson. Med. 39 270-8
5. Crozier S, Brereton I M, Zelaya F O, Roffmann W U and Doddrell D M 1997a Sample-induced RF perturbations in high-field, high-resolution NMR spectroscopy J. Magn. Reson. 126 39-47
6. Crozier S and Doddrell D M 1993 Gradient-coil design by simulated annealing J. Magn. Reson. A 103 354-7
7. Crozier S, Forbes L K, Roffmann W U, Luescher K and Doddrell D M 1997b A methodology for current density calculations in high-frequency RF resonators Concepts Magn. Reson. 9 195-210
8. Deichmann R, Good C D and Turner R 2002 RF inhomogeneity compensation in structural brain imaging Magn. Reson. Med. 47 398-402
9. Delves L M and Mohamed J L 1985 Computational Methods for Integral Equations (Cambridge: Cambridge University Press)
10. de Zwart J A, Ledden P J, Kellman P, van Gelderen P and Duyn J H 2002 Design of a SENSE-optimized high-sensitivity MRI receive coil for brain imaging Magn. Reson. Med. 47 1218-27
11. Doty F D, Entzminger G Jr and Hauck C D 1999 Error-tolerant RF litz coils for nMR/MRI J. Magn. Reson. 140 17-31
12. Forbes L K and Crozier S 2002 A novel target-field method for finite-length magnetic resonance shim coils: II. Tesseral shims J. Phys. D: Appl. Phys. 35 839-49
13. Forbes L K, Crozier S and Doddrell D M 1997 Calculating current densities and fields produced by shielded MRI probes SIAM J. Appl. Math. 57 401-25
14. Fujita H, Petropoulos L S, Morich M A, Shvartsman S M and Brown R W 1999 A hybrid inverse approach applied to the design of lumped-element RF coils IEEE Trans. Biomed. Eng. 46 353-61
15. Hoult D I and Deslauriers R 1994 Accurate shim-coil design and magnet-field profiling by a power-minimization-matrix method J. Magn. Reson. A 108 9-20
16. Jackson J D 1999 Classical Electrodynamics 3rd edn (New York: Wiley)
17. Jin J 1999 Electromagnetic Analysis and Design in Magnetic Resonance Imaging (FL: CRC Press)
18. Lawrence B G, Crozier S, Yau D D and Doddrell D M 2002 A time-harmonic inverse methodology for the design of RF coils in MRI IEEE Trans. Biomed. Eng. 49 64-71
19. Liu F and Crozier S 2004 Electromagnetic fields inside a lossy, multilayered spherical head phantom excited by MRI coils: models and methods Phys. Med. Biol. 49 1835-51
20. Mahony C, Forbes L K, Crozier S and Doddrell D M 1995 A novel approach to the calculation of RF magnetic and electric fields for NMR coils of arbitrary geometry J. Magn. Reson. B 107 145-51
21. Martens M A, Petropoulos L S, Brown R W, Andrews J H, Morich M A and Patrick J L 1991 Insertable biplanar gradient coils for magnetic resonance imaging Rev. Sci. Instrum. 62 2639-45
22. Pan H and Shen G X 2003 Application of artificial neural network methods in HTS RF coil design for MRI Concepts Magn. Reson. B 18 9-14
23. Ramo S, Whinnery J R and van Duzer T 1967 Fields and Waves in Communication Electronics (New York: Wiley)
24. Shvartsman S M, Brown R W, Cheng Y C N, Eagan T P, Fujita H, Morich M A, Petropoulos L S and Willig J D 2001 Application of the SUSHI method to the design of gradient coils Magn. Reson. Med. 45 147-55
25. Turner R 1986 A target field approach to optimal coil design J. Phys. D: Appl. Phys. 19 L147-51
26. Turner R 1993 Gradient coil design: a review of methods Magn. Reson. Imag. 11 903-20
27. While P T and Forbes L K 2004 Electromagnetic fields in the human body due to switched transverse gradient coils in MRI Phys. Med. Biol. 49 2779-98
28. While P T, Forbes L K and Crozier S 2005 A time-harmonic target-field method for designing unshielded RF coils in MRI Meas. Sci. Technol. 16 997-1006
29. Zhang X, Ugurbil K and Chen W 2001 Microstrip RF surface coil design for extremely high-field MRI and spectroscopy Magn. Reson. Med. 46 443-50