Axial anisotropic conductivity imaging based on projected current density in MREIT

IEEE Transactions on Medical Imaging

Volumn 29, Issue 3, 2010, Pages 781-789

  Nam, Hyun Soo ^a   Kwon, Oh In ^a  

^a Konkuk University   (South Korea)

Author keywords

Axial anisotropic conductivity; Current density; Magnetic resonance electrical impedance tomography (MREIT); Magnetic resonance imaging (MRI)

Indexed keywords

ANISOTROPIC CONDUCTIVITY; ANISOTROPIC PROPERTY; AXIAL ANISOTROPIC CONDUCTIVITY; IMAGING OBJECTS; INJECTED CURRENT; MAGNETIC FLUX DENSITIES; MAGNETIC RESONANCE ELECTRICAL IMPEDANCE TOMOGRAPHIES; MAGNETIC RESONANCE ELECTRICAL IMPEDANCE TOMOGRAPHY (MREIT); NUMERICAL SIMULATION; PRACTICAL IMPLEMENTATION; WHITE MATTER;

ALGORITHMS; COMPUTER SIMULATION; CURRENT DENSITY; DIAGNOSTIC RADIOGRAPHY; ELECTRIC IMPEDANCE; ELECTRIC IMPEDANCE MEASUREMENT; ELECTRIC IMPEDANCE TOMOGRAPHY; MAGNETIC FLUX; MAGNETIC RESONANCE; MAGNETIC RESONANCE IMAGING; MAGNETIC STRUCTURE; TENSORS;

ANISOTROPY;

ANIMAL; ANISOTROPY; ARTICLE; BRAIN; COMPUTER SIMULATION; DOG; IMAGE PROCESSING; IMAGE QUALITY; IMPEDANCE; METHODOLOGY; NUCLEAR MAGNETIC RESONANCE IMAGING; PHYSIOLOGY;

ANIMALS; ANISOTROPY; BRAIN; COMPUTER SIMULATION; DOGS; ELECTRIC IMPEDANCE; IMAGE PROCESSING, COMPUTER-ASSISTED; MAGNETIC RESONANCE IMAGING; PHANTOMS, IMAGING;

EID: 77749237109     PISSN: 02780062     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMI.2009.2036440     Document Type: Article

References (25)

1. P. J. Basser and C. Pierpaoli, "Microstructural and physiological features of tissues elucidated by quantitative-diffusion-tensor MRI," J. Magn. Reson. B, vol.111, pp. 209-219, 1996.
2. O. Birgul,B.M. Eyuboglu, andY.Z. Ider, "Current constrained voltage scaled reconstruction (CCVSR) algorithm for MR-EIT and its performance with different probing current patterns," Phys. Med. Biol., vol.48, pp. 653-671, 2003.
3. O. Birgul, M. Hamamura, L. Muftuler, and O. Nalcioglu, "Contrast and spatial resolution in MREIT using low amplitude current," Phys. Med. Biol., vol.51, pp. 5035-5049, 2006.
4. E. Degirmenci and B. M. Eyuboglu, "Anisotropic conductivity imaging with MREIT using equipotential projection algorithm," Phys. Med. Biol., vol.52, pp. 7229-7242, 2007.
5. D. Gilbarg and N. S. Trudinger, Elliptic Partial Differential Equations of Second Order. Berlin, Germany: Springer-Verlag, 1983.
6. M. Hamamura, L. Muftuler, O. Birgul, and O. Nalcioglu, "Measurement of ion diffusion using magnetic resonance electrical impedance tomography," Phys. Med. Biol., vol.51, pp. 2753-2762, 2006.
7. Y. Z. Ider and O. Birgul, "Use of the magnetic field generated by the internal distribution of injected currents for electrical impedance tomography (MR-EIT)," Elektrik, vol.6, pp. 215-225, 1998.
8. Y. Z. Ider and S. Onart, "Algebraic reconstruction for 3D MR-EIT using one component of magnetic flux density," Physiol. Meas., vol.25, pp. 281-294, 2004.
9. M. L. G. Joy, G. C. Scott, and R. M. Henkelman, "In vivo detection of applied electric currents by magnetic resonance imaging," Magn. Reson. Imag., vol.7, pp. 89-94, 1989.
10. M. L. G. Joy, "MR current density and conductivity imaging: The state of the art," in Proc. 26th Ann. Int. Conf. IEEE EMBS, San Francisco, CA, 2004, pp. 5315-5319.
11. H. J. Kim, B. I. Lee, Y. Cho, Y. T. Kim, B. T. Kang, H. M. Park, S. Y. Lee, J. K. Seo, and E. J. Woo, "Conductivity imaging of canine brain using a 3 T MREIT system: Postmortem experiments," Physiol. Meas., vol.28, pp. 1341-1353, 2007.
12. H. J. Kim, T. I. Oh, Y. T. Kim, B. I. Lee, E. J. Woo, J. K. Seo, S. Y. Lee, O. Kwon, C. Park, B. T. Kang, and H. M. Park, "In vivo electrical conductivity imaging of a canine brain using a 3T MREIT system," Physiol. Meas., vol.29, pp. 1145-1155, 2008.
13. O. Kwon, E. J. Woo, J. R. Yoon, and J. K. Seo, "Magnetic resonance electrical impedance tomography (MREIT): Simulation study of J-sub-stitution algorithm," IEEE Trans. Biomed. Eng., vol.48, no.2, pp. 160-167, Feb. 2002.
14. O. Kwon, J. Y. Lee, and J. R. Yoon, "Equipotential line method for magnetic resonance electrical impedance tomography," Inverse Probl., vol.18, pp. 1089-1100, 2002.
15. O. A. Ladyzhenskaya and N. N. Ural'ceva, Linear and Quasilinear Equations of Elliptic Type. Moscow, Russia: Izdat.Nauka, 1973.
16. B. I. Lee, S. H. Oh, E. J. Woo, S. Y. Lee, M. H. Cho, O. Kwon, J. K. Seo, J. Y. Lee, and W. S. Baek, "Three-dimensional forward solver and its performance analysis in magnetic resonance," Phys. Med. Biol., vol.48, pp. 1971-1986, 2003.
17. B. I. Lee, S. H. Lee, T. S. Kim, O. Kwon, E. J. Woo, and J. K. Seo, "Harmonic decomposition in PDE-based denoising technique for magnetic resonance electrical impedance tomography," IEEE Trans. Biomed. Eng., vol.52, no.11, pp. 1912-1920, Nov. 2005.
18. B. I. Lee, C. Park, H. C. Pyo, O. Kwon, and E. J. Woo, "Optimization of current injection pulse width in MREIT," Physiol. Meas., vol.28, pp. N1-N7, 2007.
19. L. Muftuler, M. Hamamura, O. Birgul, and O. Nalcioglu, "Resolution and contrast in magnetic resonance electrical impedance tomography (MREIT) and its application to cancer imaging," Tech. Cancer Res. Treat., vol.3, pp. 599-609, 2004.
20. x algorithm in magnetic resonance electrical impedance tomography," Phys. Med. Biol, vol.48, pp. 3101-3116, 2003.
21. S. H. Oh, B. I. Lee, T. S. Park, S. Y. Lee, E. J. Woo, M. H. Cho, O. Kwon, and J. K. Seo, "Magnetic resonance electrical impedance tomography at 3 Tesla field strength," Mag. Reson. Med., vol.51, pp. 1292-1296, 2004. (Pubitemid 38797018)
22. S. H. Oh, B. I. Lee, E. J. Woo, S. Y. Lee, T. S. Kim, O. Kwon, and J. K. Seo, "Electrical conductivity images of biological tissue phantoms in MREIT," Physiol. Meas., vol.26, pp. S279-S288, 2005.
23. z algorithm in magnetic resonance electrical impedance tomography," Physiol. Meas., vol.25, pp. 275-1269, 2004.
24. x decomposition algorithm in magnetic resonance electrical impedance tomography (MREIT)," IEEE Trans. Med. Imag., vol.23, no.3, pp. 388-394, Mar. 2004.
25. C. Park, B. I. Lee, O. Kwon, and E. J. Woo, "Measurement of induced magnetic flux density using injection current nonlinear encoding rfseq 1