High field MREIT: setup and tissue phantom imaging at 11 T.

Physiological Measurement
R SadleirEung Je Woo

Abstract

Magnetic resonance electrical impedance tomography (MREIT) has the potential to provide conductivity and current density images with high spatial resolution and accuracy. Recent experimental studies at a field strength of 3 T showed that the spatial resolution of conductivity and current density images may be similar to that of conventional MR images as long as enough current is injected, at least 20 mA when the object being imaged has a size similar to the human head. To apply the MREIT technique to image small conductivity changes using less injection current, we performed MREIT studies at 11 T field strength, where noise levels in measured magnetic flux density data are significantly lower. In this paper we present the experimental results of imaging biological tissues with different conductivity values using MREIT at 11 T. We describe technical difficulties encountered in using high-field MREIT systems and possible solutions. High-field MREIT is suggested as a research tool for obtaining accurate conductivity data from tissue samples and animal subjects.

References

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Jun 2, 2004·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Barbara L BeckS J Blackband
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Oct 29, 2004·Physics in Medicine and Biology·Jin Keun SeoEung Je Woo
Mar 31, 2005·Physiological Measurement·Suk Hoon OhJin Keun Seo
Aug 10, 2005·Physiological Measurement·Rosalind SadleirJin Keun Seo
Nov 16, 2005·IEEE Transactions on Bio-medical Engineering·Byung Il LeeJin Keun Seo
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Citations

Sep 19, 2008·IEEE Engineering in Medicine and Biology Magazine : the Quarterly Magazine of the Engineering in Medicine & Biology Society·Xiaotong ZhangBin He
Jun 1, 2017·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Cihan GöksuAxel Thielscher
Sep 21, 2006·Physics in Medicine and Biology·Ozlem BirgulOrhan Nalcioglu
Dec 8, 2006·Physiological Measurement·Byung Il LeeEung Je Woo
Nov 6, 2007·Physiological Measurement·Hyung Joong KimEung Je Woo
Jan 19, 2018·Physics in Medicine and Biology·Yizhuang SongRosalind Sadleir
Sep 19, 2008·Physiological Measurement·Hyung Joong KimHee Myung Park
Sep 19, 2008·Physiological Measurement·Eung Je Woo, Jin Keun Seo

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