Contrast and spatial resolution in MREIT using low amplitude current

Physics in Medicine and Biology

Volumn 51, Issue 19, 2006, Pages 5035-5049

  Birgul, Ozlem ^a   Hamamura, Mark J ^a   Muftuler, L Tugan ^a   Nalcioglu, Orhan ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

MATRIX EQUATIONS; PHANTOMS; SPATIAL RESOLUTIONS; TIKHONOV METHODS;

ALGORITHMS; ELECTRIC CURRENTS; ELECTRIC IMPEDANCE; FINITE ELEMENT METHOD; IMAGE RECONSTRUCTION; MAGNETIC FIELDS; OPTICAL RESOLVING POWER; PROBLEM SOLVING; TOMOGRAPHY;

MAGNETIC RESONANCE IMAGING;

AGAROSE;

ALGORITHM; ARTICLE; COMPUTER ASSISTED IMPEDANCE TOMOGRAPHY; CONDUCTANCE; ELECTRIC CURRENT; FINITE ELEMENT ANALYSIS; INSULATOR ELEMENT; MAGNETIC FIELD; NUCLEAR MAGNETIC RESONANCE; NUCLEAR MAGNETIC RESONANCE IMAGING; PRIORITY JOURNAL; SENSITIVITY ANALYSIS;

ALGORITHMS; CONTRAST MEDIA; ELECTRIC IMPEDANCE; GELS; HUMANS; IMAGE ENHANCEMENT; IMAGE PROCESSING, COMPUTER-ASSISTED; MAGNETIC RESONANCE IMAGING; MODELS, STATISTICAL; PHANTOMS, IMAGING; SEPHAROSE; SODIUM CHLORIDE; TOMOGRAPHY, EMISSION-COMPUTED;

EID: 33748932489     PISSN: 00319155     EISSN: 13616560     Source Type: Journal    
DOI: 10.1088/0031-9155/51/19/020     Document Type: Article

References (22)

1. Birgul O, Eyuboglu B M and Ider Y Z 2003a Current constrained voltage scaled reconstruction (CCVSR) algorithm for MREIT and its performance with different probing current performance Phys. Med. Biol. 48 653-71
2. Birgul O, Eyuboglu B M and Ider Y Z 2003b Experimental results for 2d magnetic resonance electrical impedance tomography (MREIT) using magnetic flux density in one direction Phys. Med. Biol. 48 3485-504
3. Elmore J G, Barton M B, Moceri V M, Polk S, Arena P J and Fletcher S W 2002 Screening mammograms by community radiologists: variability in false-positive rates J. Natl. Cancer Inst. 94 1376-80
4. Gao N, Zhu S A and He B A 2006 New magnetic resonance electrical impedance tomography (MREIT) algorithm: the RSM-MREIT algorithm with applications to estimation of human head conductivity Phys. Med. Biol. 51 3067-83
5. Hamamura M J 2005 Electrical impedance tomography using magnetic resonance imaging PhD Thesis University of California at Irvine
6. 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
7. Ider Y Z and Birgul O 1998 Use of magnetic field generated by the internal distribution of injected currents for electrical impedance tomography (MREIT) Elektr. Turk. J. Electr. Eng. Comput. Sci. 6 215-25
8. Ider Y Z, Onart S and Lionheart W R B 2003 Uniqueness and reconstruction in magnetic resonance-electrical impedance tomography (MREIT) Physiol. Meas. 24 591-604
9. Khang H S, Lee B I, Oh S H, Woo E J, Lee S Y, Cho M H, Kwon O, Yoon J R and Seo J K 2002 J-substitution algorithm in magnetic resonance electrical impedance tomography (MREIT): Phantom experiments for static resistivity images IEEE Trans. Med. Imaging 21 695-702
10. Kim Y J, Kwon O, Seo J K and Woo E J 2003 Uniqueness and convergence of conductivity image reconstruction in magnetic resonance electrical impedance tomography Inverse Problems 19 1213-25
11. Lee B I, Oh S H, Woo E J, Lee S Y, Cho M H, Kwon O, Seo J K and Baek W S 2003 Static resistivity image of a cubic saline phantom in magnetic resonance electrical impedance tomography Physiol. Meas. 24 579-89
12. Lee J Y 2004 A reconstruction formula and uniqueness of conductivity in MREIT using two internal current distributions Inverse Problems 20 847-58
13. Lee S H, Seo J K, Park C, Lee B I, Woo E J, Lee S Y, Kwon O and Hahn J 2006 Conductivity image reconstruction from defective data in MREIT: numerical simulation and animal experiment IEEE Trans. Med. Imaging 25 168-76
14. Muftuler L T, Hamamura M J, Birgul O and Nalcioglu O 2004 Resolution and contrast in magnetic resonance electrical impedance tomography (MREIT) and its application to cancer imaging Technol. Cancer Res. Treat. 3 599-609
15. Oh S H, Lee B I, Park T S, Lee S Y, Woo E J, Cho M H, Seo J K and Kwon O 2004 Magnetic resonance electrical impedance tomography at 3tesla field strength Magn. Reson. Med. 51 1291-6
16. z algorithm in magnetic resonance electrical impedance tomography Phys. Med. Biol. 48 3101-16
17. Ozdemir M S, Eyuboglu B M and Ozbek O 2004 Equipotential projection-based magnetic resonance electrical impedance tomography and experimental realization Phys. Med. Biol. 49 4765-83
18. Park C, Park E J, Woo E J and Kwon O 2004a Static conductivity imaging using variational gradient bz algorithm in magnetic resonance electrical impedance tomography Physiol. Meas. 25 257-69
19. Park C, Kwon O, Woo E J and Seo J K 2004b Electrical conductivity imaging using gradient bz decomposition algorithm in magnetic resonance electrical impedance tomography (MREIT) IEEE Trans. Med. Imaging 23 388-94
20. Sadleir R, Grant S, Zhang S U, Oh S H, Lee B I and Woo E J 2006 High field MREIT: setup and tissue phantom imaging at 11T Physiol. Meas. 27 S261-70
21. Su M Y, Muhler A, Lao X and Nalcioglu O 1998 Tumor characterization with dynamic contrast-enhanced MRI Using MR contrast agents of various molecular weights Magn. Reson. Med. 39 259-69
22. Surowiec A J, Stuchly S S, Barr J R and Swarup A 1988 Dielectric properties of breast carcinoma and the surrounding tissues IEEE Trans. BME 35 257-63