MR-based conductivity imaging using multiple receiver coils

42Citations
Citations of this article
31Readers
Mendeley users who have this article in their library.

This article is free to access.

Abstract

Purpose: To propose a signal combination method for MR-based tissue conductivity mapping using a standard clinical scanner with multiple receiver coils. Methods: The theory of the proposed method is presented with two practical approaches, a coil-specific approach and a subject-specific approach. Conductivity maps were reconstructed using the transceive phase of the combined signal. The sensitivities of the coefficients used for signal combination were analyzed and the method was compared with other signal combination methods. For validation, multiple receiver brain coils and multiple receiver breast coils were used in phantom, in vivo brain, and in vivo breast studies. Results: The variation among the conductivity estimates was <15% as determined by the coefficient sensitivity tests. Compared with other signal combination methods, the proposed method yielded fewer artifacts in the conductivity estimates. Conclusion: MR-based tissue conductivity mapping is feasible when using a standard clinical MR scanner with multiple receiver coils. The proposed method reduces systematic errors in phase-based conductivity mapping that can occur due to the inhomogeneous magnitude of the combined receive profile. Magn Reson Med 76:530–539, 2016. © 2015 Wiley Periodicals, Inc.

Cite

CITATION STYLE

APA

Lee, J., Shin, J., & Kim, D. H. (2016). MR-based conductivity imaging using multiple receiver coils. Magnetic Resonance in Medicine, 76(2), 530–539. https://doi.org/10.1002/mrm.25891

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free