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BioMed Research International
Volume 2016 (2016), Article ID 8659298, 11 pages
http://dx.doi.org/10.1155/2016/8659298
Research Article

Development of High-Field Permanent Magnetic Circuits for NMRI/MRI and Imaging on Mice

1College of Science, North China University of Science and Technology, Tangshan 063000, China
2Shanghai Shining Global Science and Education Equipment Corporation, Ltd., Shanghai 201806, China
3Fundamental Medical College, North China University of Science and Technology, Tangshan 063000, China

Received 15 October 2015; Revised 24 January 2016; Accepted 27 January 2016

Academic Editor: Guang Jia

Copyright © 2016 Guangxin Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. C.-N. Chen, V. J. Sank, S. M. Cohen, and D. I. Hoult, “The field dependence of NMR imaging. I. Laboratory assessment of signal-to-noise ratio and power deposition,” Magnetic Resonance in Medicine, vol. 3, no. 5, pp. 722–729, 1986. View at Publisher · View at Google Scholar
  2. Y. Lvovsky, E. W. Stautner, and T. Zhang, “Novel technologies and configurations of superconducting magnets for MRI,” Superconductor Science and Technology, vol. 26, no. 9, Article ID 093001, 2013. View at Publisher · View at Google Scholar · View at Scopus
  3. C. K. Kang, M. K. Woo, S. M. Hong, Y. B. Kim, and Z. H. Cho, “Intracranial microvascular imaging at 7 T MRI with transceiver RF coils,” Magnetic Resonance Imaging, vol. 32, no. 1, pp. 1133–1138, 2014. View at Publisher · View at Google Scholar
  4. T. Tominaka, M. Okamura, and T. Katayama, “Analytical field calculation of helical magnets with an axially symmetric iron yoke,” Nuclear Instruments and Methods in Physics Research Section: A, vol. 484, no. 1–3, pp. 36–44, 2002. View at Publisher · View at Google Scholar · View at Scopus
  5. Z. Jin, X. Tang, B. Meng, D. L. Zu, and W. M. Wang, “A SQP optimization method for shimming a permanent MRI magnet,” Progress in Natural Science, vol. 19, no. 10, pp. 1439–1443, 2009. View at Publisher · View at Google Scholar · View at Scopus
  6. Y. Cheng, W. He, L. Xia, and F. Liu, “Design of shimming rings for small permanent MRI magnet using sensitivity-analysis-based particle swarm optimization algorithm,” Journal of Medical and Biological Engineering, vol. 35, no. 4, pp. 448–454, 2015. View at Publisher · View at Google Scholar
  7. D.-H. Kim, B.-S. Kim, J.-H. Lee, W.-S. Nah, and I.-H. Park, “3-D optimal shape design of ferromagnetic pole in MRI magnet of open permanent-magnet type,” IEEE Transactions on Applied Superconductivity, vol. 12, no. 1, pp. 1467–1470, 2002. View at Publisher · View at Google Scholar · View at Scopus
  8. U. Rapport, “Field adjusting mechanisms and methods for permanent magnet arrangement with backplate,” US Patent, US20020097122 A1, 2002-07-25.
  9. T. Shirai, T. Haishi, S. Utsuzawa, Y. Matsuda, and K. Kose, “Development of a compact mouse MRI using a yokeless permanent magnet,” Magnetic Resonance in Medical Sciences, vol. 4, no. 3, pp. 137–143, 2005. View at Publisher · View at Google Scholar
  10. Q. L. Wang, W. H. Yang, Z. P. Ni et al., “Advances in NMRI technology,” High-Technology & Industrialization, vol. 211, no. 12, pp. 46–53, 2013. View at Google Scholar
  11. D. L. Longo, F. Arena, L. Consolino et al., “Gd-AAZTA-MADEC, an improved blood pool agent for DCE-MRI studies on mice on 1 T scanners,” Biomaterials, vol. 75, pp. 47–57, 2016. View at Publisher · View at Google Scholar
  12. S. Kännälä, T. Toivo, T. Alanko, and K. Jokela, “Occupational exposure measurements of static and pulsed gradient magnetic fields in the vicinity of MRI scanners,” Physics in Medicine and Biology, vol. 54, no. 7, pp. 2243–2257, 2009. View at Publisher · View at Google Scholar · View at Scopus
  13. M. Yamada, K. Takano, Y. Kawai, and R. Kato, “Hemodynamic-based mapping of neural activity in medetomidine-sedated rats using a 1.5T compact magnetic resonance imaging system: a preliminary study,” Magnetic Resonance in Medical Sciences, vol. 14, no. 3, pp. 243–250, 2015. View at Publisher · View at Google Scholar
  14. T. Haishi, M. Aoki, and E. Sugiyama, “Development of a 2.0 Tesla permanent magnetic circuit for NMR/MRI,” in Proceedings of the International Society for Magnetic Resonance in Medicine (ISMRM ’13), vol. 13, p. 869, May 2005.
  15. D. Tamada, K. Kose, and T. Haishi, “Magnetic field shimming of a 2.0 T permanent magnet using a bi-planar single-channel shim coil,” in Proceedings of the International Society for Magnetic Resonance in Medicine (ISMRM '12), vol. 20, p. 2579, 2012.
  16. The Magnetic Materials Research Center of Shin-Etsu Chemical, “Development of world’s largest Halbach-type magnetic circuit,” http://www.shinetsu.co.jp/serem/e/rd/mc.html.
  17. C. Juchem, B. Muller-Bierl, F. Schick, N. K. Logothetis, and J. Pfeuffer, “Combined passive and active shimming for in vivo MR spectroscopy at high magnetic fields,” Journal of Magnetic Resonance, vol. 183, no. 2, pp. 278–289, 2006. View at Publisher · View at Google Scholar · View at Scopus
  18. H. Sanchez, F. Liu, A. Trakic, and S. Crozier, “A magnetization mapping approach for passive shim design in MRI,” in Proceedings of the 28th Annual International Conference Engineering in Medicine and Biology Society (EMBS '06), vol. 1, pp. 1893–1896, New York, NY, USA, September 2006. View at Publisher · View at Google Scholar
  19. B. Dorri, “Method for passively shimming a magnet,” US Patent, US5677854A, 1995.
  20. K. M. Koch, P. B. Brown, D. L. Rothman, and R. A. de Graaf, “Sample-specific diamagnetic and paramagnetic passive shimming,” Journal of Magnetic Resonance, vol. 182, no. 1, pp. 66–74, 2006. View at Publisher · View at Google Scholar · View at Scopus
  21. A. Belov, V. Bushuev, M. Emelianov et al., “Passive shimming of the superconducting magnet for MRI,” IEEE Transactions on Applied Superconductivity, vol. 5, no. 2, pp. 679–681, 1995. View at Publisher · View at Google Scholar · View at Scopus
  22. B. Dorri, M. E. Vermilyea, and W. E. Toffolo, “Passive shimming of MR magnets: algorithm, hardware, and results,” IEEE Transactions on Applied Superconductivity, vol. 3, no. 1, pp. 254–257, 1993. View at Publisher · View at Google Scholar · View at Scopus
  23. D. X. Xie, E. L. Wang, and Y. L. Zhang, “Passive shimming of permanent magnet for MRI based on dynamic programming,” Journal of Shenyang University of Technology, vol. 29, no. 4, pp. 396–399, 2007. View at Google Scholar
  24. Z. Ren, D. Xie, and H. Li, “Shimming method for open MRI permanent main magnet,” Transactions of China Electrotechnical Society, vol. 25, no. 3, pp. 1–5, 2010. View at Google Scholar · View at Scopus
  25. X. F. You, Z. Wang, X. B. Zhang, W. Yang, and T. Song, “Passive shimming based on mixed integer programming for MRI magnet,” Science China Technological Sciences, vol. 56, no. 5, pp. 1208–1212, 2013. View at Publisher · View at Google Scholar · View at Scopus
  26. G. Aubert, “Permanent magnet device for generating an offset uniform magnetic field,” US Patent, US20130193973, 2013.
  27. Z. Jin, X. Tang, B. Meng, D. Zu, and W. Wang, “A SQP optimization method for shimming a permanent MRI magnet,” Progress in Natural Science, vol. 19, no. 10, pp. 1439–1443, 2009. View at Publisher · View at Google Scholar · View at Scopus
  28. J. Lee and J. Yoo, “Topology optimization of the permanent magnet type MRI considering the magnetic field homogeneity,” Journal of Magnetism and Magnetic Materials, vol. 322, no. 9–12, pp. 1651–1654, 2010. View at Publisher · View at Google Scholar · View at Scopus
  29. H. S. Lopez, F. Liu, E. Weber, and S. Crazier, “Passive shim design and a shimming approach for bi-planar permanent magnetic resonance imaging magnets,” IEEE Transactions on Magnetics, vol. 44, no. 3, pp. 394–402, 2008. View at Publisher · View at Google Scholar · View at Scopus
  30. D. Tamada, K. Kose, and T. Haishi, “A new planar single-channel shim coil using multiple circular currents for magnetic resonance imaging,” Applied Physics Express, vol. 5, no. 5, pp. 6701–6706, 2012. View at Publisher · View at Google Scholar · View at Scopus
  31. D. L. Zu, L. M. Hong, X. M. Cao et al., “Permanent magnet MRI pulsed eddy current magnetic field gradient background analysis,” Scientia Sinica Technologica, vol. 40, no. 10, pp. 1221–1226, 2010. View at Google Scholar
  32. J. O. Nieminen, P. T. Vesanen, K. C. J. Zevenhoven et al., “Avoiding eddy-current problems in ultra-low-field MRI with self-shielded polarizing coils,” Journal of Magnetic Resonance, vol. 212, no. 1, pp. 154–160, 2011. View at Publisher · View at Google Scholar · View at Scopus
  33. C. P. Bidinosti, I. S. Kravchuk, and M. E. Hayden, “Active shielding of cylindrical saddle-shaped coils: application to wire-wound RF coils for very low field NMR and MRI,” Journal of Magnetic Resonance, vol. 177, no. 1, pp. 31–43, 2005. View at Publisher · View at Google Scholar · View at Scopus
  34. G. Sinha and S. S. Prabhu, “Analytical model for estimation of eddy current and power loss in conducting plate and its application,” Physical Review Special Topics—Accelerators and Beams, vol. 14, no. 6, pp. 62401–62416, 2011. View at Google Scholar
  35. H. T. Xie, “Self-shielding gradient coils used in magnetic resonance imaging,” CN, Patent, CN 202189140 U, 2012.
  36. H. T. Xie, “RF coil apparatus for magnetic resonance imaging,” CN Patent, CN 202189138 U, 2012.
  37. H. T. Xie, Huantong 3 Dimensional NMR Integration, People's Republic of China National Copyright Administration of Integrated Software Computer, 2012.
  38. P. H. Xia, The Permanent Magnet Mechanism, Beijing Industrial University Press, 2000.
  39. Ningbo Jinyu Magnet, “N33–N52 Strong Rare Earth Sintered Neodymium Magnets Ring With Epoxy Coated,” http://www.sinteredneodymiummagnets.com/sale-5908666-n33-n52-strong-rare-earth-sintered-neodymium-magnets-ring-with-epoxy-coated.html.
  40. S. L. Hou, H. T. Xie, W. Hou, S. Y. Li, and W. Chen, “Gradient coil of permanent magnet mini-magnetic resonance imager and image quality,” Chinese Journal of Magnetic Resonance, vol. 29, no. 4, pp. 508–520, 2012. View at Google Scholar
  41. G. X. Wang, H. T. Xie, S. L. Hou, W. Chen, Q. Zhao, and S. Y. Li, “Development of the 1.2 T~1.5 T permanent magnetic resonance imaging device and its application for mouse imaging,” BioMed Research International, vol. 2015, Article ID 858694, 8 pages, 2015. View at Publisher · View at Google Scholar
  42. T. Haishi, T. Uematsu, Y. Matsuda, and K. Kose, “Development of a 1.0 T MR microscope using a Nd-Fe-B permanent magnet,” Magnetic Resonance Imaging, vol. 19, no. 6, pp. 875–880, 2001. View at Publisher · View at Google Scholar