Ion mobility imaging and contrast mechanism of apparent conductivity in MREIT

Physics in Medicine and Biology

Volumn 56, Issue 7, 2011, Pages 2265-2277

  Oh, Tong In ^a   Kim, Young Tae ^a   Minhas, Atul ^a   Seo, Jin Keun ^b   Kwon, Oh In ^c   Woo, Eung Je ^a  

^a Kyung Hee University   (South Korea)

^b Yonsei University   (South Korea)

^c Konkuk University   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

APPARENT CONDUCTIVITY; CONDUCTIVITY DISTRIBUTIONS; CONDUCTIVITY IMAGE; CONTRAST MECHANISM; CROSS SECTIONAL IMAGE; HIGH RESOLUTION; HOLE DIAMETER; HOLLOW CYLINDERS; HUMAN BODIES; IMAGING EXPERIMENTS; IMAGING METHOD; IMAGING OBJECTS; IMAGING PARAMETERS; INJECTED CURRENT; ION DIFFUSION; ION MOBILITY; MAGNETIC FLUX DENSITIES; MAGNETIC RESONANCE ELECTRICAL IMPEDANCE TOMOGRAPHIES; MRI SCANNERS; NUMERICAL SIMULATION; STABLE CONDUCTIVITY;

COMPUTER SIMULATION; CYLINDERS (SHAPES); DIAGNOSTIC RADIOGRAPHY; ELECTRIC IMPEDANCE; ELECTRIC IMPEDANCE TOMOGRAPHY; EXPERIMENTS; IMAGING SYSTEMS; IONS; MAGNETIC FLUX; MAGNETIC RESONANCE; MAGNETIC STRUCTURE; SCANNING;

MAGNETIC RESONANCE IMAGING;

ARTICLE; ELECTRIC CONDUCTIVITY; FEASIBILITY STUDY; IMAGE PROCESSING; IMAGE QUALITY; IMPEDANCE; MAGNETISM; METHODOLOGY; TOMOGRAPHY;

ELECTRIC CONDUCTIVITY; ELECTRIC IMPEDANCE; FEASIBILITY STUDIES; IMAGE PROCESSING, COMPUTER-ASSISTED; MAGNETICS; PHANTOMS, IMAGING; TOMOGRAPHY;

EID: 79952978296     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/56/7/022     Document Type: Article

References (32)

1. Birgul O and Ider Y Z 1995 Use of the magnetic field generated by the internal distribution of injected currents for electrical impedance tomography Proc. 9th Int. Conf. Elec. Bio Impedance (Heidelberg, Germany) pp 418-9
2. Grimnes S and Martinsen O G 2008 Bioimpedance and Bioelectricity Basics 2nd edn (Oxford: Academic)
3. Hamamura M J, Muftuler L T, Birgul O and Nalcioglu O 2006 Measurement of ion diffusion using magnetic resonance electrical impedance tomography Phys. Med. Biol. 51 2753-62 (Pubitemid 43832934)
4. Holder D 2005 Electrical Impedance Tomography: Methods, History and Applications (Bristol: Institute of Physics Publishing)
5. z algorithm for MREIT imaging of intact animals Phys. Med. Biol. 55 7541-56
6. Jeon K, Lee C-O, Kim H J, Woo E J and Seo J K 2009a CoReHA: conductivity reconstructor using harmonic algorithms for magnetic resonance electrical impedance tomography (MREIT) J. Biomed. Eng. Res. 30 279-87
7. Jeon K, Minhas A S, Kim Y T, Jeong W C, Kim H J, Kang B T, Park H M, Lee C-O, Seo J K and Woo E J 2009b MREIT conductivity imaging of the postmortem canine abdomen using CoReHA Physiol. Meas. 30 957-66
8. 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. Imaging 7 89-94
9. Kim H J, Kim Y T, Minhas A S, Jeong W C, Woo E J, Seo J K and Kwon O J 2009 In vivo high-resolution conductivity imaging of the human leg using MREIT: the first human experiment IEEE Trans. Med. Imaging 28 1681-7
10. Kim H J, Lee B I, Cho Y, Kim Y T, Kang B T, Park H M, Lee S Y, Seo J K and Woo E J 2007 Conductivity imaging of canine brain using a 3 T MREIT system: postmortem experiments Physiol. Meas. 28 1341-53 (Pubitemid 350058965)
11. Kim Y T, Oh T I and Woo E J 2010 Experimental verification of contrast mechanism in magnetic resonance electrical impedance tomography (MREIT) IEEE EMBC2010 (Buenos Aires, Argentina)
12. Kim H J et al 2008 In vivo electrical conductivity imaging of a canine brain using a 3 T MREIT system Physiol. Meas. 29 1145-55
13. z-based MREIT model in electrical impedance imaging Int. J. Comput. Math. Appl. 51 817-28 (Pubitemid 44062285)
14. 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 (Pubitemid 36874803)
15. z algorithm in magnetic resonance electrical impedance tomography SIAM J. Appl. Math. 67 1259-82 (Pubitemid 47613206)
16. Liu J J, Seo J K and Woo E J 2010 A posteriori error estimate and convergence analysis for conductivity image reconstruction in MREIT SIAM J. Appl. Math. 70 2883-903
17. Minhas A S, Jeong W C, Kim Y T, Kim H J, Lee T H and Woo E J 2008 MREIT of postmortem swine legs using carbon-hydrogel electrodes J. Biomed. Eng. Res. 29 436-42
18. Muftuler L T, Hamamura M J, Birgul O and Nalcioglu O 2006 In vivo MRI electrical impedance tomography (MREIT) of tumors Technol. Cancer Res. Treat. 5 381-7 (Pubitemid 44300252)
19. Oh T I, Koo W, Lee K H, Kim S M, Lee J, Kim S W, Seo J K and Woo E J 2008 Validation of a multi-frequency electrical impedance tomography (mfEIT) system KHU Mark1: impedance spectroscopy and time-difference imaging Physiol. Meas. 29 295-307 (Pubitemid 351423041)
20. z algorithm in magnetic resonance electrical impedance tomography Phys. Med. Biol. 48 3101-16 (Pubitemid 37258357)
21. 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
22. Sadleir R J, Grant S C and Woo E J 2010 Can high-field MREIT be used to directly detect neural activity? Theoretical considerations NeuroImage 52 205-16
23. Sadleir R et al 2005 Noise analysis in MREIT at 3 and 11 Tesla field strength Physiol. Meas. 26 875-84
24. 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. Imaging 10 362-74 (Pubitemid 21728000)
25. Scott G C, Joy M L G, Armstrong R L and Henkelman R M 1992 Sensitivity of magnetic resonance current density imaging J. Magn. Reson. 97 235-54
26. Seo J K and Woo E J 2011 Magnetic resonance electrical impedance tomography (MREIT) SIAM Rev. 53 40-68
27. 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 (Pubitemid 37047562)
28. Tsai J Z, Cao H, Tungjitkusolmun S, Woo E J, Vorperian V R and Webster J G 2000 Dependence of apparent resistance of four-electrode probes on insertion depth IEEE Trans. Biomed. Eng. 47 41-8 (Pubitemid 30043999)
29. Tsai J Z, Will J A, Stelle S H, Cao H, Tungjitkusolmun S, Choy Y B, Haemmerich D, Vorperian V R and Webster J G 2002 In vivo measurement of swine myocardial resistivity IEEE Trans. Biomed. Eng. 49 472-83 (Pubitemid 34411816)
30. Woo E J, Lee S Y and Mun C W 1994 Impedance tomography using internal current density distribution measured by nuclear magnetic resonance Proc. SPIE 2299 377-85
31. Woo E J and Seo J K 2008 Magnetic resonance electrical impedance tomography (MREIT) for high-resolution conductivity imaging Physiol. Meas. 29 R1-26
32. Zhang N 1992 Electrical impedance tomography based on current density imaging MS Thesis Department of Electrical Engineering, University of Toronto