Surgical wound monitoring by MRI with a metamaterial-based implanted local coil

Kamel, Hanan, Syms, Richard RA, Kardoulaki, Evdokia M and Rea, Marc ORCID: 0000-0001-9982-1703 (2018) Surgical wound monitoring by MRI with a metamaterial-based implanted local coil. EPJ APPLIED METAMATERIALS, 5. p. 5.

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Official URL: http://dx.doi.org/10.1051/epjam/2018001

Abstract

<jats:p>An implantable sensor for monitoring surgical wounds after bowel reconstruction is proposed. The sensor consists of a coupled pair of 8-element magneto-inductive ring resonators, designed for mounting on a biofragmentable anastomosis ring to give a local increase in signal-to-noise ratio near an annular wound during <jats:sup>1</jats:sup>H magnetic resonance imaging. Operation on an anti-symmetric spatial mode is used to avoid coupling to the <jats:italic>B</jats:italic><jats:sub>1</jats:sub> field during excitation, and a single wired connection is used for MRI signal output. The electrical response and field-of-view are estimated theoretically. Prototypes are constructed from flexible elements designed for operation at 1.5 T, electrical responses are characterized and local SNR enhancement is confirmed using agar gel phantoms.</jats:p>

Item Type:	Article
Uncontrolled Keywords:	Metamaterial, MRI, local coil
Depositing User:	Symplectic Admin
Date Deposited:	05 Dec 2019 17:47
Last Modified:	19 Jan 2023 00:13
DOI:	10.1051/epjam/2018001
Open Access URL:	https://doi.org/10.1051/epjam/2018001
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3065053