Browse > Article
http://dx.doi.org/10.4313/JKEM.2010.23.10.820

Modified Fermi Filter Design to Improve the MR Image of Knee in the Rheumatoid Arthritis Patient  

Kim, Dong-Hyun (Department of Diagnostic Radiology, Pusan National University Hospital)
Ye, Soo-Young (Department of Mechatronics Engineering, Dongseo University)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.23, no.10, 2010 , pp. 820-825 More about this Journal
Abstract
In this study, we intended to design the optimal Fermi filter to apply the k-space date that is knee image of the rheumatoid arthritis patient acquired from the MRI (magnetic resonance imaging) instrument. After deciding the suitable coefficient for the Fermi filter, the results were compared with modified Fermi filter and inverse Chebyshev filter, Chebyshev filter, Elliptic filter and Butterworth filter. Firstly, in comparison to the results, the radiologist confirmed that modified Fermi filter was best decision for boundary of the rheumatoid arthritis images. The number of the black voxels of the histogram showed the quantity of the results. At the proposed filter images, numbers of the blacks voxels were statistically decreased. That meant voxels only appeared the black color were changed to others voxels color. Because the number of the total voxels was fixed, the area appeared block color could be effected to the other areas. If the modified Fermi filter were used for rheumatoid arthritis patient, the result will be better than other filters.
Keywords
Modified Fermi filter; Rheumatoid arthritis patient; MR image;
Citations & Related Records
연도 인용수 순위
  • Reference
1 B. Chen1 and E. W. Hsu, Magnet. Reson. Med. 54, 393 (2005).   DOI
2 A. Jeffrey, IEEE Signal Process. Mag. 27, 81 (2010).   DOI
3 J. Song and Q. H. Liu, Proceedings of the 28th IEEE EMBS Annual international Conference, (IEEE, NY, USA, 2006) p. 3767.
4 N. Aggarwal and Y. Bresler, IEEE International Symposium on Biomedical Imaging: Nano to Macro, (IEEE, VA, USA, 2006) p. 41.
5 Bin Chen1 and Edward W. Hsu, Magnet. Reson. Med. 54, 393 (2005).   DOI
6 K. P. Pruessmann, M. Weiger, P. Bornert, and P. Boesiger, Magnet. Reson. Med. 46, 638 (2001).   DOI
7 H. S. Kragh, Dirac: a scientific biography (Cambridge University Press, NY, USA, 1990) p. 2.
8 S. Kim, K. Kwon, I. Park, B. Han, and D. Kim, Conf. Proc IEEE Eng. Med. Biol. Soc. (IEEE, Lyon, 2007) p. 3454.
9 M. A. Brown and R. C. Semelka, MRI: Basic Principles and Application (Wiley-Liss, NY, 1995).
10 M. T. Vlaardingerbroek, J. A. den Boer, Magnetic Resonance Imaging, (Springer, Berlin, 1996).
11 P. Spincemaille, T. D. Nguyen, M. R. Prince, and Y. Wang, Magn. Reson. Med. 60, 158 (2008).   DOI
12 I. Guler, A. Toprak, A. Demirhan, and R. Karakis, J. Med. Syst. 32, 229 (2008).   DOI
13 K. F. Malczewski, IEEE International Journal of Advanced Media and Communication 3, 25 (2009).   DOI