An inverse methodology for high-frequency RF coil design for MRI with de-emphasized B1 fields

IEEE Transactions on Biomedical Engineering

Volumn 52, Issue 9, 2005, Pages 1582-1587

  Xu, Bin ^a   Wei, Qing ^a,b   Liu, Feng ^a   Crozier, Stuart ^a,b  

^a UNIVERSITY OF QUEENSLAND   (Australia)

^b Australian Institute of Bioengineering and Nanotechnology   (Australia)

Author keywords

FDTD; Green's function; Human model; Inverse methodology; MRI; Pre emphasis; RF coil

Indexed keywords

BIOLOGICAL ORGANS; ELECTROMAGNETIC WAVES; FINITE DIFFERENCE METHOD; GREEN'S FUNCTION; MAGNETIC RESONANCE IMAGING; MATHEMATICAL MODELS;

HIGH-FREQUENCY RF COIL; INVERSE METHODOLOGY; SPACE TIME-HARMONIC ELECTROMAGNETIC GREEN'S FUNCTIONS;

MAGNETIC RESONANCE;

ARTICLE; ELECTROMAGNETIC FIELD; MAGNETIC FIELD; METHODOLOGY; NUCLEAR MAGNETIC RESONANCE IMAGING; RADIOFREQUENCY ABLATION; SIGNAL TRANSDUCTION; TISSUE INTERACTION;

BRAIN; COMPUTER-AIDED DESIGN; ELECTROMAGNETICS; EQUIPMENT DESIGN; EQUIPMENT FAILURE ANALYSIS; FEASIBILITY STUDIES; HUMANS; MAGNETIC RESONANCE IMAGING; MODELS, BIOLOGICAL; RADIO WAVES; TRANSDUCERS;

EID: 26844541700     PISSN: 00189294     EISSN: None     Source Type: Journal    
DOI: 10.1109/TBME.2005.851514     Document Type: Article

References (22)

1. J. M. Jin, Electromagnetic Design and Analysis in Magnetic Resonance Imaging. Boca Raton, FL: CRC, 1999.
2. S. Crozier, I. M. Brereton, F. O. Zelaya, W. U. Roffmann, and D. M. Doddrell, "Sample-Induced RF perturbations in high-field, high-resolution NMR spectroscopy," J. Magn. Reson., vol. 126, pp. 39-47, 1997.
3. M. Alecci, C. M. Collins, M. B. Smith, and P. Jezzard, "Radio frequency magnetic field mapping of 3 T birdcage coils: Experimental and theoretical dependence on sample properties," Magn. Reson. Med., vol. 46, pp. 1037-1042, 2002.
4. T. Tofts, "Standing wave in uniform water phantoms," J. Magn. Reson., vol. 104(B), pp. 143-147, 1994.
5. X. L. Zhang, K. Ugurbill, and W. Chen, "A microstrip transmission line volume coil for human head MR imaging at 4T," J. Magn. Reson., vol. 161, pp. 242-251, 2003.
6. B. L. Beck, J. R. Fitzsimmons, S. Crozier, and S. J. Blackband, "Quadrature coaxial re-entrant cavity (ReCav) coils for high-frequency large volume MRI/S," in Proc. 10th Annu. Meeting ISMRM, Honolulu, HI, 2002, pp. 765-765.
7. B. A. Baertlein, O. Ozbay, T. Ibrahim, R. Lee, Y. Yu, A. Kangarlu, and P-M. L. Robitaille, "Theoretical model for an MRI radio frequency resonator," IEEE Trans. Biomed. Eng., vol. 47, no. 4, pp. 535-546, Apr. 2000.
8. J. F. Bridges, "Cavity Resonator With Improved Magnetic Field Uniformity for High Frequency Operation and Reduced Dielectric Heating in NMR Imaging Devices," U.S. Patent 4 751 464, Jun. 14, 1988.
9. J. T. Vaughan, M. Garwood, C. M. Collins, W. Liu, L. DelaBarre, G. Adriany, P. Andersen, H. Merkle, R. Goebel, M. B. Smith, and K. Ugurbil, "7T versus 4T: RF power, homogeneity, and signal-to-noise comparison in head images," Magn. Reson. Med., vol. 46, pp. 24-30, 2001.
10. 1-field inhomogeneity of shielded RF coils loaded with a human head," IEEE Trans. Biomed. Eng., vol. 45, no. 5, pp. 650-659, May 1998.
11. C. A. Balanis, Advanced Engineering Electromagnetic. New York: Wiley, 1989.
12. R. Turner, "Minimum inductance coils," J. Phys. (E): Sci. Instrum., vol. 21, pp. 948-952, 1988.
13. H. Fujita, L. S. Petropoulos, M. A. Morich, S. M. Shvartsman, and R. W. Brown, "A hybrid inverse approach applied to the design of lumped-element RF coils," IEEE Trans. Biomed., vol. 46, no. 3, pp. 353-361, Mar. 1999.
14. B. G. Lawrence, S. Crozier, D. Yau, and D. M. Doddrell, "A time-harmonic inverse methodology for the design of RF coils in MRI," IEEE Trans. Biomed. Eng., vol. 49, no. 1, pp. 64-71, Jan. 2002.
15. B. G. Lawrence, S. Crozier, G. Cowin, and D. Yau, "An inverse design of an open, head/neck RF coil for MRI," IEEE Trans. Biomed. Eng., vol. 49, no. 9, pp. 1024-1030, Sep. 2002.
16. D. Yau, B. G. Lawrence, and S. Crozier, "A method for the design of MRI radiofrequency coils based on triangular and pulse basis functions," Magn. Reson. Mater. Phys., Biol. Med., vol. 13, pp. 145-151, 2002.
17. F. Liu, S. Crozier, H. Zhao, and B. G. Lawrence, "Finite-difference time-domain-based studies of MRI pulsed field gradient-induced eddy currents inside the human body," Concepts Magn. Reson. (Magn. Reson. Eng., vol. 15, no. 1(B), pp. 26-36, 2002.
18. F. Liu, B. L. Beck, B. Xu, J. R. Fitzsimmons, S. J. Blackband, and S. Crozier, "Numerical modeling of 11.1T MRI of human head using a MOM/FDTD method," Concepts Magn. Reson. (Magnetic Reson. Eng.), vol. 24, no. 1(B), pp. 28-38, 2005.
19. C. M. Collins and M. B. Smith, "Signal-to-noise ration and absorbed power as functions of main magnetic field strength, and definition of "90" RF pulse for the head in the birdcage coil," Magn. Reson. Med., vol. 45, pp. 684-691, 2001.
20. R. Turner, "Target field distributed coils," in SMRM 6th Annu. Meeting Abstracts, 1987, pp. 179-179.
21. D. I. Hoult, "The principle of reciprocity in signal strength calculations - a mathematical guide," Concepts Magn. Reson., vol. 12, pp. 173-87, 2000.
22. Q. Wei, F. Liu, L. Xia, and S. Crozier, "An object-oriented designed finite-difference time-domain simulator for electromagnetic analysis and design in MRI - Applications to high field analyses," J. Magn. Reson, vol. 172, no. 2, pp. 222-230, 2005.