Anisotropic conductivity tensor imaging using magnetic induction tomography

Physiological Measurement
D Gürsoy, H Scharfetter

Abstract

Magnetic induction tomography aims to reconstruct the electrical conductivity distribution of the human body using non-contact measurements. The potential of the method has been demonstrated by various simulation studies and a number of phantom experiments. These studies have all relied on models having isotropic distributions of conductivity, although the human body has a highly heterogeneous structure with partially anisotropic properties. Therefore, whether the conventional modeling approaches used so far are appropriate for clinical applications or not is still an open question. To investigate the problem, we performed a simulation study to investigate the feasibility of (1) imaging anisotropic perturbations within an isotropic medium and (2) imaging isotropic perturbations inside a partially anisotropic background. The first is the case for the imaging of anomalies that have anisotropic characteristics and the latter is the case e.g. in lung imaging where an anisotropic skeletal muscle tissue surrounds the lungs and the rib cage. An anisotropic solver based on the singular value decomposition was used to attain conductivity tensor images to be compared with the ones obtained from isotropic solvers. The results indicate the...Continue Reading

References

May 8, 1999·Physics in Medicine and Biology·N G Gençer, M N Tek
Oct 7, 1950·Nature·R W BROOKFIELD
Jul 29, 1950·The Veterinary Record·R H SMYTHE
Mar 31, 2005·Physiological Measurement·Robert MerwaHermann Scharfetter
Jan 1, 1994·IEEE Transactions on Medical Imaging·N G GencerY Z Ider

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Citations

Sep 20, 2011·Measurement Science & Technology·Steffan Puwal, Bradley J Roth
Dec 5, 2018·Scientific Reports·Yandan Jiang, Manuchehr Soleimani
May 8, 2018·Scientific Reports·Lu Ma, Manuchehr Soleimani
Jun 2, 2018·Medical & Biological Engineering & Computing·Zhanxiong WuXiaohui Yu

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