Multiple-acquisition parallel imaging combined with a transceive array for the amelioration of high-field RF distortion: A modeling study

Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering

Volumn 29, Issue 2, 2006, Pages 95-105

  Li, Bing Keong ^a   Xu, Bin ^a   Liu, Feng ^a   Crozier, Stuart ^a  

^a UNIVERSITY OF QUEENSLAND   (Australia)

Author keywords

GRAPPA; Hybrid FDTD MoM; Parallel transmission phase cycling; Radio frequency field focusing; Transceive phased array head coil

Indexed keywords

EID: 33646383376     PISSN: 15525031     EISSN: 1552504X     Source Type: Journal    
DOI: 10.1002/cmr.b.20060     Document Type: Article

References (39)

1. Beck BL, Jenkins K, Caserta J, Padgett K, Fitzsimmons J, Blackband SJ. 2004. Observation of significant signal voids in images of large biological samples at 11.1 T. Magn Reson Med 51:1103-1107.
2. Liu F, Beck BL, Xu B, Fitzsimmons JR, Blackband SJ, Crozier S. 2005. Numerical modeling of 11.IT MRI of a human head using a MoM/FDTD method. Concepts Magn Reson B (Magn Reson Eng) 24B:28-38.
3. Hoult DI. 2000. Sensitivity and power deposition in a high-field imaging experiment. J Mag Reson Imaging 12:46-67.
4. Vaughan JT, Garwood M, Collins CM, Liu W, Dela-Barre L, Adriany G, et al. 2001. 7T vs. 4T: RF power, homogeneity, and signal-to-noise comparison in head images. Magn Reson Med 46:24-30.
5. 1shimming" with an eight element volume coil. Proc 11th Annual ISMRM, Toronto, p. 2390.
6. Ledden PJ, Cheng Y. 2004. Improved excitation homogeneity at high frequencies with RF pulses of time varying spatial characteristics. Proc 12th Annual ISMRM, Kyoto, p. 38.
7. Duensing CR, Beck BL, Goldburg RT, Fitzsimmons JR. 2005. Wave independence through serial excitation. Proc 13th Annual ISMRM, Miami, p. 904.
8. Adriany G, Van de Moortele PF, Wiesinger F, Moeller S, Strupp JP, Andersen P, et al. 2005. Transmit and receive transmission line arrays for 7 Tesla parallel imaging. Magn Reson Med 53:434-445.
9. Li BK, Liu F, Crozier S. 2005. Focused, eight-element transceive phased array coil for parallel magnetic resonance imaging of the chest-theoretical considerations. Magn Reson Med 53:1251-1257.
10. Lee RF, Foresto CM. 2004. A focused MRI with coupled phased array at 7T. Proc 12th Annual ISMRM, Kyoto, p. 34.
11. Yee KS. 1966. Numerical solution of initial boundary value problems involving Maxwell's equations in isotropic media. IEEE Trans Ant Prop 14:302.
12. Harrington RF. 1996. Field computation by moment methods. New York: John Wiley and Sons.
13. Griswold MA, Jakob PM, Heidemann RM, Nittka M, Jellus V, Wang JM, et al. 2002. Generalized autocalibrating partially parallel acquisitions (GRAPPA). Magn Reson Med 47:1202-1210.
14. Roemer PB, Edelstein WA, Hayes CE, Souza SP, Mueller OM. 1990. The NMR phased-array. Magn Reson Med 16:192-225.
15. Vaughan JT, Adriany G, Snyder CJ, Tian J, Thiel T, Bolinger L, et al. 2004. Efficient high-frequency body coil for high-field MRI. Magn Reson Med 52:851-859.
16. Boskamp EB, Lee RF. 2002. Whole body LPSA transceive array with optimized transmit homogeneity. Proc 10th Annual ISMRM, Honolulu, p. 904.
17. Kowalski ME, Jin JM. 2000. Determination of electromagnetic phased-array driving signals for hyperthermia based on a steady-state temperature criterion. IEEE Trans Microwave Theory Tech 48:1864-1873.
18. Kowalski ME, Behnia B, Webb AG, Jin HM. 2002. Optimization of electromagnetic phased-arrays for hyperthermia via magnetic resonance temperature estimation. IEEE Trans Biomed Eng 49:1229-1241.
19. Wang J. 1996. A novel method to reduce the signal coupling of surface coils for MRI. Proc 4th Annual ISMRM, New York, p. 1434.
20. Jevtic J. 2001. Ladder networks for capacitive decoupling in phased array coils. Proc 9th Annual ISMRM, Glasgow, p. 17.
21. Pinkerton RG, Barberi EA, Menon RS. 2005. Transceive surface coil array for magnetic resonance imaging of the human brain at 4 T. Magn Reson Med 54:499-503.
22. Pinkerton RG, Barberi EA, Menon RS. 2004. Noise properties of a NMR transceiver coil array. J Magn Reson 171:151-156.
23. Zhang XZ, Webb A. 2004. Design of a capacitively decoupled transmit/receive NMR phased array for high field microscopy at 14.1 T. J Magn Reson 170:149-155.
24. Lee RF, Giaquinto RO, Hardy CJ. 2002. Coupling and decoupling theory and its application to the MRI phased array. Magn Reson Med 48:203-213.
25. Lee RF, Westgate CR, Weiss RG, Newman DC, Bottomley PA. 2001. Planar strip array (PSA) for MRI. Magn Reson Med 45:673-683.
26. Baertlein BA, Ozbay O, Ibrahim T, Lee R, Yu Y, Kangarlu A, Robitaille PML. 2000. Theoretical model for an MRI radio frequency resonator. IEEE Trans Biomed Eng 47:535-546.
27. Beck BL, Crozier S, Blackband SJ. 2002. Quadrature coaxial reentrant cavity (ReCav) coils for high frequency large volume MRI/S. Proc 10th Annual ISMRM, Honolulu, p. 765.
28. Ong KC, Wen H, Chesnick AS, Duewell S, Jaffer FA, Balaban RS. 1995. Radiofrequency shielding of surface coils at 4.0 T. J Magn Reson Imaging 5:773-777.
29. Liu F, Crozier S. 2004. Electromagnetic fields inside a lossy, multilayered spherical head phantom excited by MRI coils: models and methods. Phys Med Biol 49:1835-1851.
30. Kim HW, Buckley DL, Peterson DM, Duensing GR, Caserta J, Fitzsimmons J, Blackband SJ. 2003. In vivo prostate magnetic resonance imaging and magnetic resonance spectroscopy at 3 Tesla using a transceive pelvic phased array coil-preliminary results. Invest Radio 38:443-451.
31. Wright SM. 2002. Full-wave analysis of planar radiofrequency coils and coil arrays with assumed current distribution. Concepts Magn Reson 15:2-14.
32. Meyer FJC, Davidson DB, Jakobus U, Stuchly MA. 2003. Human exposure assessment in the near field of GSM base-station antennas using a hybrid finite element/method of moments technique. IEEE Trans Biomed Eng 50:224-233.
33. Yau D, Lawrence B, Crozier S. 2002. A method for the design of MRI radiofrequency coils based on triangular and pulse basis functions. MAGMA 13:145-151.
34. Lin FH, Kuan WP, Jeng SK, Chen JH. 1999. Quantitative spectral/spatial analysis of phased array coil in magnetic resonance imaging based on method of moment. IEEE Trans Med Imag 18:1129-1137.
35. Wei Q, Liu F, Xia L, Crozier S. 2005. An object-oriented designed finite-difference time-domain simulator for electromagnetic analysis and design in MRI-applications to high field analyses. J Magn Reson 172:222-230.
36. Berenger JP. 1994. A perfectly matched layer for the absorption of electromagnetic waves. J Comp Phys 114:185-200.
37. Hoult DI. 2000. The principle of reciprocity in signal strength calculations-a mathematical guide. Concepts Magn Reson 12:173-187.
38. Collins CM, Smith MB. 2001. Signal-to-noise ratio and absorbed power as functions of main magnetic field strength, and definition of "90 degrees" RF pulse for the head in the birdcage coil. Magn Reson Med 45:684-691.
39. Jin JM. 1999. Electromagnetic design and analysis in magnetic resonance imaging. Boca Raton, FL: CRC.