Search Results - "Sajib, Saurav Z. K."
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Magnetic-resonance-based measurement of electromagnetic fields and conductivity in vivo using single current administration-A machine learning approach
Published in PloS one (22-07-2021)“…Diffusion tensor magnetic resonance electrical impedance tomography (DT-MREIT) is a newly developed technique that combines MR-based measurements of magnetic…”
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Current Density Imaging During Transcranial Direct Current Stimulation Using DT-MRI and MREIT: Algorithm Development and Numerical Simulations
Published in IEEE transactions on biomedical engineering (01-01-2016)“…Objective: Transcranial direct current stimulation (tDCS) is a neuromodulatory technique for neuropsychiatric diseases and neurological disorders. In the tDCS…”
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3
Electrodeless conductivity tensor imaging (CTI) using MRI: basic theory and animal experiments
Published in Biomedical engineering letters (01-08-2018)“…The electrical conductivity is a passive material property primarily determined by concentrations of charge carriers and their mobility. The macroscopic…”
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Conductivity Tensor Imaging of In Vivo Human Brain and Experimental Validation Using Giant Vesicle Suspension
Published in IEEE transactions on medical imaging (01-07-2019)“…Human brain mapping of low-frequency electrical conductivity tensors can realize patient-specific volume conductor models for neuroimaging and electrical…”
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Simultaneous imaging of dual-frequency electrical conductivity using a combination of MREIT and MREPT
Published in Magnetic resonance in medicine (01-01-2014)“…Purpose To propose a single magnetic resonance scan conductivity imaging technique providing dual‐frequency characteristics of tissue conductivity. Methods…”
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6
Reconstruction of dual-frequency conductivity by optimization of phase map in MREIT and MREPT
Published in Biomedical engineering online (08-03-2014)“…The spectroscopic conductivity distribution of tissue can help to explain physiological and pathological status. Dual frequency conductivity imaging by…”
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Anisotropic Conductivity Tensor Imaging of In Vivo Canine Brain Using DT-MREIT
Published in IEEE transactions on medical imaging (01-01-2017)“…We present in vivo images of anisotropic electrical conductivity tensor distributions inside canine brains using diffusion tensor magnetic resonance electrical…”
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Software Toolbox for Low-Frequency Conductivity and Current Density Imaging Using MRI
Published in IEEE transactions on biomedical engineering (01-11-2017)“…Objective: Low-frequency conductivity and current density imaging using MRI includes magnetic resonance electrical impedance tomography (MREIT), diffusion…”
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Extracellular Total Electrolyte Concentration Imaging for Electrical Brain Stimulation (EBS)
Published in Scientific reports (10-01-2018)“…Techniques for electrical brain stimulation (EBS), in which weak electrical stimulation is applied to the brain, have been extensively studied in various…”
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In vivo mapping of current density distribution in brain tissues during deep brain stimulation (DBS)
Published in AIP advances (01-01-2017)“…New methods for in vivo mapping of brain responses during deep brain stimulation (DBS) are indispensable to secure clinical applications. Assessment of current…”
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Experimental evaluation of electrical conductivity imaging of anisotropic brain tissues using a combination of diffusion tensor imaging and magnetic resonance electrical impedance tomography
Published in AIP advances (01-06-2016)“…Anisotropy of biological tissues is a low-frequency phenomenon that is associated with the function and structure of cell membranes. Imaging of anisotropic…”
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Enhanced magnetic flux density mapping using coherent steady state equilibrium signal in MREIT
Published in AIP advances (01-03-2016)“…Measuring the z-component of magnetic flux density B = (Bx , By , Bz ) induced by transversally injected current, magnetic resonance electrical impedance…”
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Evaluation of three-dimensional anisotropic head model for mapping realistic electromagnetic fields of brain tissues
Published in AIP advances (01-08-2015)“…Electromagnetic fields provide fundamental data for the imaging of electrical tissue properties, such as conductivity and permittivity, in recent magnetic…”
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14
Low frequency conductivity reconstruction based on a single current injection via MREIT
Published in Physics in medicine & biology (17-11-2020)“…Conventional magnetic resonance electrical impedance tomography (MREIT) reconstruction methods require administration of two linearly independent currents via…”
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Anisotropic conductivity tensor imaging in MREIT using directional diffusion rate of water molecules
Published in Physics in medicine & biology (21-06-2014)“…Magnetic resonance electrical impedance tomography (MREIT) is an emerging method to visualize electrical conductivity and/or current density images at low…”
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Regional absolute conductivity reconstruction using projected current density in MREIT
Published in Physics in medicine & biology (21-09-2012)“…Magnetic resonance electrical impedance tomography (MREIT) is a non-invasive technique for imaging the internal conductivity distribution in tissue within an…”
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Influence of Transcranial Electrical Stimulation (TES) waveforms on neural excitability of a realistic axon: a simulation study
Published in 2021 43rd Annual International Conference of the IEEE Engineering in Medicine & Biology Society (EMBC) (01-11-2021)“…Neuromodulation caused by transcranial electrical stimulation (TES) has been used successfully to treat various neuro-degenerative diseases. Simulation models…”
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Conference Proceeding Journal Article -
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Sub-millimeter resolution electrical conductivity images of brain tissues using magnetic resonance-based electrical impedance tomography
Published in Applied physics letters (13-07-2015)“…Recent magnetic resonance (MR)-based electrical impedance tomography (MREIT) of in vivo animal and human subjects enabled the imaging of electromagnetic…”
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Simulations and phantom evaluations of magnetic resonance electrical impedance tomography (MREIT) for breast cancer detection
Published in Journal of magnetic resonance (1997) (01-05-2013)“…[Display omitted] ► Experimental and numerical simulation results of MREIT to detect breast cancer. ► Practical amounts of Bz noise measured from phantom…”
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Optimization of magnetic flux density measurement using multiple RF receiver coils and multi-echo in MREIT
Published in Physics in medicine & biology (07-09-2014)“…Magnetic Resonance Electrical Impedance Tomography (MREIT) is an MRI method that enables mapping of internal conductivity and/or current density via…”
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