Optimization of torque-balanced asymmetric head gradient coils

Magnetic Resonance in Medicine

Volumn 35, Issue 6, 1996, Pages 875-886

  Alsop, David C ^a   Connick, Thomas J ^a  

^a HOSPITAL OF THE UNIVERSITY OF PENNSYLVANIA   (United States)

Author keywords

gradient coil; magnetic resonance; neuroimaging

Indexed keywords

BRAIN MAPPING; MAGNETIC RESONANCE; NEUROIMAGING; SINGULAR VALUE DECOMPOSITION;

BRAIN IMAGING; CLINICAL SCANNERS; GRADIENT COIL; LOCAL GRADIENTS; RAPID OPTIMIZATION; SINGULAR VALUE DECOMPOSITION ALGORITHMS; THEORETICAL EXPRESSION; TORQUE CONSTRAINTS;

TORQUE;

ARTICLE; BRAIN; CALCULATION; NUCLEAR MAGNETIC RESONANCE IMAGING; TECHNIQUE; TORQUE;

EID: 0029939717     PISSN: 07403194     EISSN: None     Source Type: Journal    
DOI: 10.1002/mrm.1910350614     Document Type: Article

References (31)

1. P. Mansfield, I. L. Pykett, Biological and medical imaging by NMR. J. Magn. Reson. 29, 355 (1978).
2. R. Turner, D. LeBihan, C. T. Moonen, D. Despres, J. Frank, Echo-Planar time course MRI of cat brain oxygenation changes. Magn. Reson. Med. 22, 159-166 (1991).
3. P. A. Bandettini, E. C. Wong, R. S. Hinks, R. S. Tikofsky, J. S. Hyde, Time course EPI of human brain function during task activation. Magn. Reson. Med. 25, 390-397 (1992).
4. K. K. Kwong, J. W. Belliveau, D. A. Chesler, I. E. Goldberg, R. M. Weisskoff, B. P. Poncelet, D. N. Kennedy, B. E. Hoppel, M. S. Cohen, R. Turner, H. M. Cheng, T. J. Brady, B. R. Rosen, Dynamic magnetic resonance imaging of human brain activity during primary sensory stimulation. Proc. Natl. Acad. Sci. U S A 89, 5675-5679 (1992).
5. J. W. Belliveau, B. R. Rosen, H. L. Kantor, R. R. Rzedzian, D. N. Kennedy, R. C. McKinstry, J. M. Vevea, M. S. Cohen, I. L. Pykett, T. J. Brady, Functional cerebral imaging by susceptibility contrast. Magn. Reson. Med. 14, 538-546 (1990).
6. R. R. Edelman, B. Siewert, D. G. Darby, V. Thangaraj, A. C. Nobre, M. M. Mesulam, S. Warach, Qualitative mapping of cerebral blood flow and functional localization with echo-planar MR imaging and signal targeting with alternating radio frequency. Radiology 192, 513-520 (1994).
7. R. Turner, D. LeBihan, Single-shot diffusion imaging at 2.0 Tesla. J. Magn. Reson. 86, 445-452 (1990).
8. E. C. Wong, A. Jesmanowicz, J. S. Hyde, High-resolution, Short echo time MR imaging of the fingers and wrist with a local gradient coil. Radiology 181, 393-397 (1991).
9. D. C. Alsop, H. Hatabu, M. Bonnet, W. Gefter, Multi-slice breath-hold imaging of the lung with sub-millisecond echo times. Magn. Reson. Med. 33, 678-682 (1995).
10. K. Oshio, D. A. Feinberg, GRASE (gradient- and spin-echo) imaging: a novel fast MRI technique. Magn. Reson. Med. 20, 344-349 (1991).
11. M. S. Cohen, R. M. Weisskoff, R. R. Rzedzian, M. L. Kantor, Sensory stimulation by time-varying magnetic fields. Magn. Reson. Med. 14, 409-414 (1990).
12. P. Mansfield, P. R. Harvey, Limits to neural stimulation in echo-planar imaging. Magn. Reson. Med. 29, 746-758 (1993).
13. R. Turner, R. Vavrek, J. Maier, D. LeBihan, EPI diffusion imaging of the brain using a localized head gradient coil, in "Proc., SMRM, 8th Annual Meeting, Amsterdam, 1989," p. 1123.
14. E. C. Wong, P. A. Bandettini, J. S. Hyde, Echo-planar imaging of the human brain using a three axis local gradient coil, in "Proc., SMRM, 11th Annual Meeting, Berlin, 1992," p. 105.
15. C. C. Myers, P. B. Roemer, Highly linear asymmetric transverse gradient coil design for head imaging, in "Proc., SMRM, 10th Annual Meeting, San Francisco, 1991," p. 711.
16. D. C. Alsop, A torque-balanced, asymmetric gradient coil for imaging of the brain, in "Proc., SMRM, 12th Annual Meeting, New York, 1993," p. 1359.
17. A. M. Abduljalil, A. H. Aletras, P. M. L. Robitaille, Torque free asymmetric gradient coils for echo planar imaging. Magn. Reson. Med. 31, 450-453 (1994).
18. L. S. Petropoulos, J. L. Patrick, M. A. Morich, M. R. Thompson, R. W. Brown, Torque-free asymmetric transverse gradient coil, in "Proc., SMRM, 12th Annual Meeting, New York, 1993," p. 1305.
19. E. C. Wong, J. S. Hyde, Short cylindrical transverse gradient coils using remote current return, in "Proc., SMRM, 11th Annual Meeting, Berlin, 1992," p. 583.
20. P. Mansfield, B. L. W. Chapman, R. Bowtell, P. Glover, R. Coxon, P. R. Harvey, Active acoustic screening: reduction of noise in gradient coils by Lorentz force balancing. Magn. Reson. Med. 33, 276-281 (1995).
21. R. Turner, R. M. Bowley, Passive screening of switched magnetic field gradients. J. Phys. E: Sci. Instrum. 19, 876-879 (1986).
22. R. Turner, A target field approach to optimal coil design. J. Phys. D: Appl. Phys. 19, 151 (1986).
23. R. Turner, Minimum inductance coils. J Phys E: Sci. Instrum. 21, 948-952 (1988).
24. J. D. Jackson, "Classical Electrodynamics," John Wiley & Sons, New York, 1975.
25. R. Turner, Gradient coil design: a review of methods. Magn. Reson. Imaging 11, 903-920 (1993).
26. J. W. Carlson, K. A. Derby, K. C. Hawryszko, M. Weideman, Design and evaluation of shielded gradient coils. Magn. Reson. Med. 26, 191-206 (1992).
27. E. C. Wong, A. Jesmanowicz, J. S. Hyde, Coil optimization for MRI by conjugate gradient descent. Magn. Reson. Med. 21, 39-48 (1991).
28. S. Pissanetzky, Minimum energy MRI gradient coils of general geometry. Meas. Sci. Technol. 3, 667-673 (1992).
29. W. H. Press, B. P. Flannery, S. A. Teukolsky, W. T. Vetterling, "Numerical Recipes," Cambridge University Press, Cambridge, 1986.
30. M. Abramowitz, I. A. Stegun, "Handbook of Mathematical Functions," Dover, New York, 1964.
31. W. R. Smythe, "Static and Dynamic Electricity," McGraw-Hill, New York, 1950.