Design of Distributed Spiral Resonators for the Decoupling of MRI Array Coils

Conference paper

Brizi, D., Fontana, N., Costa, F., Matera, R., Tiberi, G., Galante, A., Alecci, M. and Monorchio, A. (2020). Design of Distributed Spiral Resonators for the Decoupling of MRI Array Coils. Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.23919/eucap48036.2020.9136002
AuthorsBrizi, D., Fontana, N., Costa, F., Matera, R., Tiberi, G., Galante, A., Alecci, M. and Monorchio, A.
TypeConference paper
Abstract

This paper describes a distributed filter layout for the decoupling of 7T Radio Frequency (RF) Magnetic Resonance Imaging (MRI) 1 H planar array coils based on miniaturized spiral resonators as unit-cells. The spirals, opportunely designed in terms of resonant frequency and with an optimized layout to minimize their number, are placed on the same dielectric substrate of the RF coils. We demonstrated through numerical simulations the decoupling effectiveness of the distributed filter, observing a decoupling greater than -20 dB and satisfying matching levels (-30 dB) for the RF coils. The possibility to print on the same substrate both the coils and the filter results in practical advantages like excellent mechanical robustness and less sensibility to potential fabrication tolerances.

Year2020
Journal14th European Conference on Antennas and Propagation, EuCAP 2020
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Digital Object Identifier (DOI)https://doi.org/10.23919/eucap48036.2020.9136002
Web address (URL)http://www.scopus.com/inward/record.url?eid=2-s2.0-85088641457&partnerID=MN8TOARS
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Publication dates
Online08 Jul 2020
Online15 Mar 2020
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Deposited21 Jun 2022
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© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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Finite element method-based approach for radiofrequency magnetic resonance coil losses estimation
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Skin Effect Estimation in Radiofrequency Coils for Nuclear Magnetic Resonance Applications
Giovannetti, G. and Tiberi, G. (2016). Skin Effect Estimation in Radiofrequency Coils for Nuclear Magnetic Resonance Applications. Applied Magnetic Resonance. 47, pp. 601-612. https://doi.org/10.1007/s00723-016-0780-x
Huygens Principle based UWB Microwave Imaging Method for Skin Cancer Detection
Ghavami, N, Tiberi, G, Ghavami, M, Dudley, S and Lane, ME (2016). Huygens Principle based UWB Microwave Imaging Method for Skin Cancer Detection. 10th IEEE/IET International Symposium on Communication Systems, Networks and Digital Signal Processing. Prague, Czech Republic 20 - 22 Jul 2016 Institute of Electrical and Electronics Engineers (IEEE).
Quadrature birdcage coil with distributed capacitors for 7.0 T magnetic resonance data acquisition of small animals
Stara, R., Tiberi, G., Gabrieli, M., Buonincontri, G., Fontana, N., Monorchio, A., Costagli, M., Symms, M.R., Retico, A. and Tosetti, M. (2015). Quadrature birdcage coil with distributed capacitors for 7.0 T magnetic resonance data acquisition of small animals. Concepts in Magnetic Resonance Part B: Magnetic Resonance Engineering. https://doi.org/10.1002/cmr.b.21271
Evaluation of 3D radio-frequency electromagnetic fields for any matching and coupling conditions by the use of basis functions
Tiberi, G., Fontana, N., Monorchio, A., Stara, R., Retico, A. and Tosetti, M. (2015). Evaluation of 3D radio-frequency electromagnetic fields for any matching and coupling conditions by the use of basis functions. Journal of Magnetic Resonance. 261, pp. 38-42. https://doi.org/10.1016/j.jmr.2015.09.015
Non-iterative beamforming based on Huygens principle for multistatic ultrawide band radar: Application to breast imaging
Ghavami, N., Smith, P.P., Tiberi, G., Edwards, D. and Craddock, I. (2015). Non-iterative beamforming based on Huygens principle for multistatic ultrawide band radar: Application to breast imaging. IET Microwaves, Antennas and Propagation. 9 (12), pp. 1233-1240. https://doi.org/10.1049/iet-map.2014.0621
Non-invasive assessment of Neuromuscular Disorders by 7 tesla Magnetic Resonance Imaging and Spectroscopy: Dedicated radio-frequency coil development
Retico, A., Stara, R., Fantacci, M.E., Toncelli, A., Galante, A., Florio, T.M., Alecci, M., Cosottini, M., Astrea, G., Battini, R., Tiberi, G., Costagli, M. and Tosetti, M. (2015). Non-invasive assessment of Neuromuscular Disorders by 7 tesla Magnetic Resonance Imaging and Spectroscopy: Dedicated radio-frequency coil development. 2015 IEEE International Symposium on Medical Measurements and Applications, MeMeA 2015. Torino, Italy 07 - 09 May 2015 Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/memea.2015.7145174
Assessment of Silent T1-weighted head imaging at 7 T
Costagli, M., Symms, M.R., Angeli, L., Kelley, D.A.C., Biagi, L., Farnetani, A., Rua, C., Donatelli, G., Tiberi, G., Tosetti, M. and Cosottini, M. (2015). Assessment of Silent T1-weighted head imaging at 7 T. European Radiology. 26, pp. 1879-1888. https://doi.org/10.1007/s00330-015-3954-2
Design of Interference-Resilient Medium Access for High Throughput WLANs
Reggiani, L., Gola, A., Maggio, G.M. and Tiberi, G. (2015). Design of Interference-Resilient Medium Access for High Throughput WLANs. International Journal of Distributed Sensor Networks. https://doi.org/10.1155/2015/659569
Local SAR in adults and children at 7T MR: Realistic estimation by the using of simulations
Fontana, N., Tiberi, G., Stara, R., Monorchio, A., Retico, A. and Tosetti, M. (2014). Local SAR in adults and children at 7T MR: Realistic estimation by the using of simulations. 2014 International Conference on Electromagnetics in Advanced Applications (ICEAA). 03 - 08 Aug 2014 https://doi.org/10.1109/iceaa.2014.6903858
Tissue Border Enhancement by inversion recovery MRI at 7.0 Tesla.
Costagli M, Kelley DA, Symms MR, Biagi L, Stara R, Maggioni E, Tiberi G, Barba C, Guerrini R, Cosottini M and Tosetti M (2014). Tissue Border Enhancement by inversion recovery MRI at 7.0 Tesla. Neuroradiology. 56, pp. 517-523. https://doi.org/10.1007/s00234-014-1365-8
Short-term side-effects of brain MR examination at 7 T: a single-centre experience.
Cosottini M, Frosini D, Biagi L, Pesaresi I, Costagli M, Tiberi G, Symms M and Tosetti M (2014). Short-term side-effects of brain MR examination at 7 T: a single-centre experience. European Radiology. https://doi.org/10.1007/s00330-014-3177-y
STEAM-MiTiS: An MR spectroscopy method for the detection of scalar-coupled metabolites and its application to glutamate at 7 T
Toncelli, A., Noeske, R., Cosottini, M., Costagli, M., Domenici, V., Tiberi, G. and Tosetti, M. (2014). STEAM-MiTiS: An MR spectroscopy method for the detection of scalar-coupled metabolites and its application to glutamate at 7 T. Magnetic Resonance in Medicine. 74 (6), pp. 1515-1522. https://doi.org/10.1002/mrm.25556
Huygens principle based imaging of multilayered objects with inclusions
Ghavami, N., Tiberi, G., Edwards, D.J., Safaai-Jazi, A. and Monorchio, A. (2014). Huygens principle based imaging of multilayered objects with inclusions. Progress In Electromagnetics Research B. 58, pp. 139-149. https://doi.org/10.2528/pierb13121002