Conductivity imaging with low level current injection using transversal J-substitution algorithm in MREIT

Physics in Medicine and Biology

Volumn 52, Issue 22, 2007, Pages 6717-6730

  Nam, Hyun Soo ^a   Lee, Byung Il ^b   Choi, Jongsung ^c   Park, Chunjae ^a   Kwon, Oh In ^a  

^a Konkuk University   (South Korea)

^b Kyung Hee University   (South Korea)

^c Kwangwoon University   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

ELECTRIC CURRENTS; ELECTRIC IMPEDANCE; ELECTRODES; ITERATIVE METHODS; MAGNETIC FLUX; VISUALIZATION;

CURRENT INJECTION; ITERATIVE ALGORITHMS; SUBSTITUTION ALGORITHMS;

BIOMEDICAL ENGINEERING;

AGAROSE;

ALGORITHM; AMPLITUDE MODULATION; ARTICLE; COMPUTER ASSISTED IMPEDANCE TOMOGRAPHY; CONDUCTANCE; DENSITY; ELECTRODE; HUMAN; IMAGE ANALYSIS; IMAGE RECONSTRUCTION; MAGNETIC FIELD; MATHEMATICAL MODEL; MEASUREMENT; NUCLEAR MAGNETIC RESONANCE IMAGING; PHANTOM; PRIORITY JOURNAL; SIGNAL NOISE RATIO;

ALGORITHMS; ELECTRIC CONDUCTIVITY; MAGNETIC RESONANCE IMAGING; TOMOGRAPHY;

EID: 35848936960     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/52/22/011     Document Type: Article

References (26)

1. Birgul O, Eyuboglu B M and Ider Y Z 2003 Current constrained voltage scaled reconstruction (CCVSR) algorithm for MR-EIT and its performance with different probing current patterns Phys. Med. Biol. 48 653-71
2. Birgul O, Hamamura M, Muftuler L and Nalcioglu O 2006 Contrast and spatial resolution in MREIT using low amplitude current Phys. Med. Biol. 51 5035-49
3. Hamamura M, Muftuler L, Birgul O and Nalcioglu O 2006 Measurement of ion diffusion using magnetic resonance electrical impedance tomography Phys. Med. Biol. 51 2753-62
4. Holder D (ed) 2005 Electrical Impedance Tomography: Methods, History and Applications (Bristol, UK: IOP Publishing)
5. Ider Y Z and Birgul O 1998 Use of the magnetic field generated by the internal distribution of injected currents for electrical impedance tomography (MR-EIT) Elektrik 6 215-25
6. Ider Y Z and Onart S 2004 Algebraic reconstruction for 3D MR-EIT using one component of magnetic flux density Physiol. Meas. 25 281-94
7. Joy M L G, Scott G C and Henkelman R M 1989 In vivo detection of applied electric currents by magnetic resonance imaging Magn. Reson. Imag. 7 89-94
8. Joy M L G 2004 MR current density and conductivity imaging: the state of the art Proc. 26th Ann. Int. Conf. IEEE EMBS (San Francisco, CA,USA) pp 5315-9
9. Kwon O, Woo E J, Yoon J R and Seo J K 2002 Magnetic resonance electrical impedance tomography (MREIT): simulation study of J-substitution algorithm IEEE Trans. Biomed. Eng. 48 160-7
10. Lee B I, Oh S H, Woo E J, Lee S Y, Cho M H, Kwon O, Seo J K, Lee J Y and Baek W S 2003 Three-dimensional forward solver and its performance analysis in magnetic resonance electrical impedance tomography (MREIT) using recessed electrodes Phys. Med. Biol. 48 1971-86
11. Lee B I, Park C, Pyo H C, Kwon O and Woo E J 2007 Optimization of current injection pulse width in MREIT Physiol. Meas. 28 N1-7
12. Lee B I, Lee S H, Kim T S, Kwon O, Woo E J and Seo J K 2005 Harmonic decomposition in PDE-based denoising technique for magnetic resonance electrical impedance tomography IEEE Trans. Biomed. Eng. 52 1912-20
13. Muftuler L, Hamamura M, Birgul O and Nalcioglu O 2004 Resolution and contrast in magnetic resonance electrical impedance tomography (MREIT) and its application to cancer imaging Tech. Cancer Res. Treat. 3 599-609
14. z algorithm in magnetic resonance electrical impedance tomography Phys. Med. Biol. 48 3101-16
15. Oh S H, Lee B I, Park T S, Lee S Y, Woo E J, Cho M H, Kwon O and Seo J K 2004 Magnetic resonance electrical impedance tomography at 3 Tesla field strength Mag. Reson. Med. 51 1292-6
16. Oh S H, Lee B I, Woo E J, Lee S Y, Kim T S, Kwon O and Seo J K 2005 Electrical conductivity images of biological tissue phantoms in MREIT Physiol. Meas 26 S279-88
17. z algorithm in magnetic resonance electrical impedance tomography Physiol. Meas. 25 275-69
18. z decomposition algorithm in magnetic resonance electrical impedance tomography (MREIT) IEEE Trans. Med. Imag. 23 388-94
19. Sadleir R et al 2005a Noise analysis in MREIT at 3 and 11 Tesla field strength Physiol. Meas. 26 875-84
20. Scott G C, Joy M L G, Armstrong R L and Henkelman R M 1991 Measurement of nonuniform current density by magnetic resonance IEEE Trans. Med. Imag. 10 362-74
21. Scott G C, Joy M L G, Armstrong R L and Hankelman R M 1992 Sensitivity of magnetic resonance current density imaging J. Magn. Reson. 97 235-54
22. Seo J K, Pyo H C, Park C J, Kwon O and Woo E J 2004 Image reconstruction of anisotropic conductivity tensor distribution in MREIT: computer simulation study Phys. Med. Biol. 49 4371-82
23. Seo J K, Yoon J R, Woo E J and Kwon O 2003 Reconstruction of conductivity and current density images using only one component of magnetic field measurements IEEE Trans. Biomed. Eng. 50 1121-4
24. Woo E J, Lee S Y and Mun C W 1994 Impedance tomography using internal current density distribution measured by nuclear magnetic resonance SPIE 2299 377-85
25. Woo E J, Seo J K and Lee S Y 2005 Magnetic resonance electrical impedance tomography (MREIT) Electrical Impedance Tomography: Methods, History and Applications ed D Holder (Bristol, UK: IOP Publishing)
26. Zhang N 1992 Electrical impedance tomography based on current density imaging MS Thesis Dept. of Elec. Eng., Univ. of Toronto, Toronto, Canada