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TU-C-330A-07: Magnetic Resonance Electrical Impedance Mammography: A Feasibility Study

N Kovalchuk, M Kallergi, E Wollin, J Heine, A Manohar, D Rabson
2006 Medical Physics (Lancaster)  
; -to develop a method of quantitative description of MREIM effects; -to study MREIM effects based on simulation results; electric properties of normal and cancerous breast tissue; -to conduct experimental  ...  Since cancerous breast tissue has a higher electric conductivity than that of benign and normal breast tissue, electric conductivity may be used as a biomarker for detection of cancer (Fricke and Morse  ... 
doi:10.1118/1.2241500 fatcat:vlwnoiw6lvbnpmtowjxcganrb4

Electrical tissue property imaging using MRI at dc and Larmor frequency

Jin Keun Seo, Dong-Hyun Kim, Joonsung Lee, Oh In Kwon, Saurav Z K Sajib, Eung Je Woo
2012 Inverse Problems  
Since the conductivity and permittivity values exhibit frequencydependent changes, it is worthwhile to perform spectroscopic imaging from almost dc to hundreds of MHz.  ...  To develop related imaging techniques, we should clearly understand the basic principles of MREIT and MREPT, which are based on coupled physics of bioelectromagnetism and MRI as well as associated mathematical  ...  Various numerical simulation results and experimental studies using conductivity phantoms with known conductivity values demonstrated the validity of reconstructed conductivity images [90] .  ... 
doi:10.1088/0266-5611/28/8/084002 fatcat:4tqd3ycignai3kcetglt73axtu

Magnetic resonance electrical impedance tomography (MREIT): conductivity and current density imaging

Jin Keun Seo, Ohin Kwon, Eung Je Woo
2005 Journal of Physics, Conference Series  
Acknowledgments This work was supported by grant R11-2002-103 from Korea Science and Engineering Foundation.  ...  are from numerical simulations and phantom experiments.  ...  Their results suggest that multi-frequency measurements of electrical conductivity and permittivity are promising for the diagnosis of cancerous lesions inside the human breast.  ... 
doi:10.1088/1742-6596/12/1/014 fatcat:falmptuoefcrppkvbvwlfo7ykq

Magnetoacoustic Imaging of Electrical Conductivity of Biological Tissues at a Spatial Resolution Better than 2 mm

Gang Hu, Bin He, Yi Wang
2011 PLoS ONE  
These results suggest the potential of MAT-MI for application to early detection of small-size diseased tissues (e.g. small breast cancer).  ...  The actual spatial resolution of our MAT-MI system was experimentally determined to be 1.51 mm by a parallel-line-source phantom with Rayleigh criterion.  ...  Acknowledgments The authors are grateful to Leo Mariappan for beneficial discussions. Author Contributions Conceived and designed the experiments: GH BH. Performed the experiments: GH.  ... 
doi:10.1371/journal.pone.0023421 pmid:21858111 pmcid:PMC3155533 fatcat:h3l44k3dbbawnd7miyvymkwkyy

Proceedings of the 19th International Conference on Biomedical Applications of Electrical Impedance Tomography [article]

Alistair Boyle, Nick Polydorides, Jiabin Jia
2018 Zenodo  
, Edinburgh, UK This document is the collection of papers accepted for presentation at the 19th International Conference on Biomedical Applications of Electrical Impedance Tomography.  ...  Proceedings of the 19th International Conference on Biomedical Applications of ELECTRICAL IMPEDANCE TOMOGRAPHY Edited by Alistair Boyle, Nick Polydorides, Jiabin Jia June 11-13, 2018 Edinburgh University  ...  Conclusions Studies in human breast anatomy are carried out in order to enhance the similar between simulation and real system.  ... 
doi:10.5281/zenodo.1306217 fatcat:2hft5xveivat5gfbptjh6l3iau

Advances in electrical impedance tomography-based brain imaging

Xi-Yang Ke, Wei Hou, Qi Huang, Xue Hou, Xue-Ying Bao, Wei-Xuan Kong, Cheng-Xiang Li, Yu-Qi Qiu, Si-Yi Hu, Li-Hua Dong
2022 Military Medical Research  
AbstractNovel advances in the field of brain imaging have enabled the unprecedented clinical application of various imaging modalities to facilitate disease diagnosis and treatment.  ...  EIT offers many advantages over other neuroimaging technologies, which has led to its potential clinical use.  ...  Acknowledgements The authors acknowledge Han-Bin Ma in CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences for his patient  ... 
doi:10.1186/s40779-022-00370-7 pmid:35227324 pmcid:PMC8883715 fatcat:vp76epwkhzbaxhasy2f23qomxa

Proceedings Of The 18Th International Conference On Biomedical Applications Of Electrical Impedance Tomography [article]

Alistair Boyle, Ryan Halter, Ethan Murphy, Andy Adler
2017 Zenodo  
of Engineering at Dartmouth, Hanover, New Hampshire, USA This document is the collection of papers accepted for presentation at the 18th International Conference on Biomedical Applications of Electrical  ...  Proceedings of the 18th International Conference on Biomedical Applications of ELECTRICAL IMPEDANCE TOMOGRAPHY Edited by Alistair Boyle, Ryan Halter, Ethan Murphy, Andy Adler June 21-24, 2017 Thayer School  ...  Measurements was conducted on male test subjects. Data analysis of the signal proposed the potential of this modality in regional pulmonary diagnostic.  ... 
doi:10.5281/zenodo.557093 fatcat:qn6cu4oazrefhmqgo6ykd4jxma

Proceedings Of The 18Th International Conference On Biomedical Applications Of Electrical Impedance Tomography [article]

Alistair Boyle, Ryan Halter, Ethan Murphy, Andy Adler
2017 Zenodo  
of Engineering at Dartmouth, Hanover, New Hampshire, USA This document is the collection of papers accepted for presentation at the 18th International Conference on Biomedical Applications of Electrical  ...  Proceedings of the 18th International Conference on Biomedical Applications of ELECTRICAL IMPEDANCE TOMOGRAPHY Edited by Alistair Boyle, Ryan Halter, Ethan Murphy, Andy Adler June 21-24, 2017 Thayer School  ...  Measurements was conducted on male test subjects. Data analysis of the signal proposed the potential of this modality in regional pulmonary diagnostic.  ... 
doi:10.5281/zenodo.601555 fatcat:qhwameib6rd43krznqytsaeju4

A comparison of two EIT systems suitable for imaging impedance changes in epilepsy

L Fabrizi, A McEwan, T Oh, E J Woo, D S Holder
2009 Physiological Measurement  
breast cancer detection.  ...  Acceptable images of test objects in the human head could be obtained with image reconstruction with the new meshes using experimental tank and simulated data.  ...  Number EEC-9986821) and by NIBIB, the National Institute of Biomedical Imaging and Bioengineering under Grant Number R01-EB000456-03.  ... 
doi:10.1088/0967-3334/30/6/s07 pmid:19491447 fatcat:nzeetw52ofaslcwhd2kxylvlpu

Multi-excitation Magnetoacoustic Tomography With Magnetic Induction for Bioimpedance Imaging

Xu Li, Bin He
2010 IEEE Transactions on Medical Imaging  
Computer simulation and phantom experiment studies have been done to demonstrate the merits of the proposed method.  ...  Benefits that come with this new method include better differentiation of tissue types with conductivity contrast using the MAT-MI approach, specifically for potential breast cancer screening application  ...  Acknowledgments This work was supported in part by NIH R21EB006070, NSF BES-0602957, NIH RO1EB007920, RO1HL080093, and RO1EB006433.  ... 
doi:10.1109/tmi.2010.2052063 pmid:20529729 pmcid:PMC3033455 fatcat:563xuzcjbjaq5glkiyd6pig2ou

Imaging Electrical Impedance From Acoustic Measurements by Means of Magnetoacoustic Tomography With Magnetic Induction (MAT-MI)

Xu Li, Yuan Xu, Bin He
2007 IEEE Transactions on Biomedical Engineering  
We have conducted computer simulation and experimental studies on magnetoacoustic-tomography with magnetic induction (MAT-MI) for electrical impedance imaging.  ...  Parameters of the model such as sample size, conductivity values, strength of the static and pulsed magnetic field, are set to simulate features of biological tissue samples and feasible experimental constraints  ...  It may also have potential applications to breast cancer imaging and cancer imaging in other soft tissues. Manuscript received July 20, 2005, and revised June 3, 2006.  ... 
doi:10.1109/tbme.2006.883827 pmid:17278589 fatcat:yqdhgowz2vhqfbpboflypilkje

Magnetic-Resonance-Based Electrical Properties Tomography: A Review

Xiaotong Zhang, Jiaen Liu, Bin He
2014 IEEE Reviews in Biomedical Engineering  
Frequency-dependent electrical properties (EPs; conductivity and permittivity) of biological tissues provide important diagnostic information (e.g. tumor characterization), and also play an important role  ...  Emphasizing on the imaging reconstruction methods rather than experimentation techniques, we review the developed imaging algorithms, validation results in physical phantoms and biological tissues, as  ...  Acknowledgments This work was supported in part by NIH RO1EB006433, RO1EB007920, R21EB017069, R21EB009133, R21EB014353, P41RR008079, P30NS057091, and U01HL117664. The authors are grateful to Drs. P.  ... 
doi:10.1109/rbme.2013.2297206 pmid:24803104 pmcid:PMC4113345 fatcat:g74halcdmzgfjge4m3qv7mezpe

Magnetoacoustic tomography with magnetic induction (MAT-MI) for imaging electrical conductivity of biological tissue: a tutorial review

Xu Li, Kai Yu, Bin He
2016 Physics in Medicine and Biology  
With all the reported and future technical advancement, MAT-MI has the potential to become an important noninvasive modality for electrical conductivity imaging of biological tissue. injection through  ...  In addition, as a recently developed reverse mode of MAT-MI, magneto-acousto-electrical tomography with magnetic induction (MAET-MI) is briefly reviewed in terms of its theory and experimental studies.  ...  Acknowledgement This work was supported in part by the National Institutes of Health under Grant EB014353, EB017069, and U01 HL117664 and in part by the National Science Foundation under Grant CBET-1450956  ... 
doi:10.1088/0031-9155/61/18/r249 pmid:27542088 pmcid:PMC5056857 fatcat:qnofvcsybzhsbb7qutpwxpdt4q

Research on factors affecting the imaging resolution of magneto–acousto–electrical tomography

Ming Dai, Jinfeng Xu, Tong Sun, Chrisopher Qian, Mian Chen, Xin Zeng, Siping Chen, Penghui Hao, Yunfeng Li, Yingying Liu, Liangping Luo
2020 IEEE Access  
For instance, the conductivity of healthy breast tissues is much lower than that of breast cancer tissues, and the conductivity of muscle tissue is about ten times that of fat tissue [2] .  ...  Numerical simulations and related imaging experiments on a multilayered phantom and a pork tissue sample were conducted by Liu et al. [15] .  ...  COMPETING INTERESTS The authors report no conflicts of interest.  ... 
doi:10.1109/access.2020.3034741 fatcat:3cs45ffs3varhomjueutiqgc6y

Magnetoacoustic tomography with magnetic induction for high-resolution bioimepedance imaging through vector source reconstruction under the static field of MRI magnet

Leo Mariappan, Gang Hu, Bin He
2014 Medical Physics (Lancaster)  
Results: The image reconstruction through vector beamformation in the numerical and experimental studies gives a reliable estimate of the conductivity distribution in the object with a ∼1.5 mm spatial  ...  Both numerical studies and phantom experiments are performed to demonstrate the merits of the proposed method.  ...  Kamil Ugurbil for useful discussions and support in developing the experiment system and Dr. Xiaotong Zhang for useful discussions with the computer simulation.  ... 
doi:10.1118/1.4862836 pmid:24506649 pmcid:PMC3987704 fatcat:fdlzzua6s5edfhc656lswnze2e
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