NDLI: 2D Magnetic Resonance Electrical Property Tomography based on $B1^{−}$ field mapping

Content Provider	IEEE Xplore Digital Library
Author	Yuqing Wan Negishi, M. Constable, R.T.
Copyright Year	2014
Description	Author affiliation: Yale Univ., New Haven, CT, USA (Yuqing Wan; Negishi, M.; Constable, R.T.)
Abstract	Magnetic Resonance Electrical Property Tomography (MREPT) is a method to visualize electrical conductivity and permittivity distributions in the object. Traditional MREPT relies on either the radio frequency (RF) transmit field $(B^{+}_{1})$ mapping, or using a transmit/receive RF coil, to compute tissue's electrical conductivity and permittivity. This paper introduces an alternative approach based on the reconstructed receive field $(B^{-}_{1})$ By solving a system of homogeneous equations consisting of the signal ratios from multi-channel receive coils, the receive field distribution with both magnitude and phase can be computed. Similar to $(B^{+}_{1})$ based MREPT method, the conductivity and permittivity in the imaging object can be calculated from the $(B^{-}_{1})$ field. We demonstrated the feasibility to image electrical property contrasts through computer simulated studies and phantom experiments. Although this study focuses on the 2D reconstruction, the presented method can be extended to full 3D. This method can be applied to regular MR imaging collected with multi-channel receive coils, and therefore, tissue anomaly based on electrical properties can potentially be revealed with a higher imaging quality, providing useful information for clinical diagnosis.
Sponsorship	IEEE Eng. Med. Biol. Soc.
Starting Page	6060
Ending Page	6063
File Size	751218
Page Count	4
File Format	PDF
ISBN	9781424479290
ISSN	1557170X
DOI	10.1109/EMBC.2014.6945011
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-08-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Conductivity Coils Image reconstruction Permittivity Magnetic resonance Mathematical model Phantoms
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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