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January 01, 2020 conference-paper Aachen paper

Artificial dielectric for 7T MRI

AIP conference proceedings, vol. 2304, pp. 020132

DOI: 10.1063/5.0032015 OpenAlex

Abstract

This article present a new approach replacing high-permittivity water-based dielectric pads with a non-resonant low-cost artificial dielectric to improve MR image quality by modifying the interferences present in the radiofrequency field at 7T MRI. The artificial dielectric comprises a stack of metal patches printed on dielectric substrates. Here we focus on the method of analytical and numerical optimization of the artificial dielectric and show that the proposed structure allows obtaining the same increase in the minimum of the transmit B1+ radio-frequency field distribution in a head phantom at 7T as the conventional dielectric pad.

Authors 9

  1. Vsevolod Vorobyev Aachen 2)Department of Radiology, C.J.Gorter Center for High Field MRI

    Centre National de la Recherche Scientifique · Carle Foundation Hospital · ITMO University · Aix-Marseille Université · Sergio Arboleda University · Leiden University Medical Center · Universidad Nacional de Colombia · Institut Fresnel · Centrale Méditerranée

    Affiliation as printed

    1)Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia

    2)Department of Radiology, C.J.Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands

    3)Department of Physics, Universidad Nacional de Colombia, Bogota, 111321, Colombia

    4)School of Exact Sciences and Engineering, Universidad Sergio Arboleda, Bogota, 111711, Colombia

    5)Aix Marseille University, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France

    6)Stevens Research Center, Carle Foundation Hospital, Urbana, IL 61801, USA

  2. Alena V. Shchelokova Aachen 2)Department of Radiology, C.J.Gorter Center for High Field MRI

    Centre National de la Recherche Scientifique · Carle Foundation Hospital · ITMO University · Aix-Marseille Université · Sergio Arboleda University · Leiden University Medical Center · Universidad Nacional de Colombia · Institut Fresnel · Centrale Méditerranée

    Affiliation as printed

    1)Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia

    2)Department of Radiology, C.J.Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands

    3)Department of Physics, Universidad Nacional de Colombia, Bogota, 111321, Colombia

    4)School of Exact Sciences and Engineering, Universidad Sergio Arboleda, Bogota, 111711, Colombia

    5)Aix Marseille University, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France

    6)Stevens Research Center, Carle Foundation Hospital, Urbana, IL 61801, USA

  3. Irena Zivkovic Aachen 2)Department of Radiology, C.J.Gorter Center for High Field MRI

    Centre National de la Recherche Scientifique · Carle Foundation Hospital · ITMO University · Aix-Marseille Université · Sergio Arboleda University · Leiden University Medical Center · Universidad Nacional de Colombia · Institut Fresnel · Centrale Méditerranée

    Affiliation as printed

    1)Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia

    2)Department of Radiology, C.J.Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands

    3)Department of Physics, Universidad Nacional de Colombia, Bogota, 111321, Colombia

    4)School of Exact Sciences and Engineering, Universidad Sergio Arboleda, Bogota, 111711, Colombia

    5)Aix Marseille University, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France

    6)Stevens Research Center, Carle Foundation Hospital, Urbana, IL 61801, USA

  4. Alexey P. Slobozhanyuk Aachen 2)Department of Radiology, C.J.Gorter Center for High Field MRI

    Centre National de la Recherche Scientifique · Carle Foundation Hospital · ITMO University · Aix-Marseille Université · Sergio Arboleda University · Leiden University Medical Center · Universidad Nacional de Colombia · Institut Fresnel · Centrale Méditerranée

    Affiliation as printed

    1)Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia

    2)Department of Radiology, C.J.Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands

    3)Department of Physics, Universidad Nacional de Colombia, Bogota, 111321, Colombia

    4)School of Exact Sciences and Engineering, Universidad Sergio Arboleda, Bogota, 111711, Colombia

    5)Aix Marseille University, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France

    6)Stevens Research Center, Carle Foundation Hospital, Urbana, IL 61801, USA

  5. Juan Domingo Baena Aachen 2)Department of Radiology, C.J.Gorter Center for High Field MRI

    Centre National de la Recherche Scientifique · Carle Foundation Hospital · ITMO University · Aix-Marseille Université · Sergio Arboleda University · Leiden University Medical Center · Universidad Nacional de Colombia · Institut Fresnel · Centrale Méditerranée

    Affiliation as printed

    1)Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia

    2)Department of Radiology, C.J.Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands

    3)Department of Physics, Universidad Nacional de Colombia, Bogota, 111321, Colombia

    4)School of Exact Sciences and Engineering, Universidad Sergio Arboleda, Bogota, 111711, Colombia

    5)Aix Marseille University, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France

    6)Stevens Research Center, Carle Foundation Hospital, Urbana, IL 61801, USA

  6. J. P. del Risco Aachen 2)Department of Radiology, C.J.Gorter Center for High Field MRI

    Centre National de la Recherche Scientifique · Carle Foundation Hospital · ITMO University · Aix-Marseille Université · Sergio Arboleda University · Leiden University Medical Center · Universidad Nacional de Colombia · Institut Fresnel · Centrale Méditerranée

    Affiliation as printed

    1)Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia

    2)Department of Radiology, C.J.Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands

    3)Department of Physics, Universidad Nacional de Colombia, Bogota, 111321, Colombia

    4)School of Exact Sciences and Engineering, Universidad Sergio Arboleda, Bogota, 111711, Colombia

    5)Aix Marseille University, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France

    6)Stevens Research Center, Carle Foundation Hospital, Urbana, IL 61801, USA

  7. Redha Abdeddaïm Aachen 2)Department of Radiology, C.J.Gorter Center for High Field MRI

    Centre National de la Recherche Scientifique · Carle Foundation Hospital · ITMO University · Aix-Marseille Université · Sergio Arboleda University · Leiden University Medical Center · Universidad Nacional de Colombia · Institut Fresnel · Centrale Méditerranée

    Affiliation as printed

    1)Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia

    2)Department of Radiology, C.J.Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands

    3)Department of Physics, Universidad Nacional de Colombia, Bogota, 111321, Colombia

    4)School of Exact Sciences and Engineering, Universidad Sergio Arboleda, Bogota, 111711, Colombia

    5)Aix Marseille University, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France

    6)Stevens Research Center, Carle Foundation Hospital, Urbana, IL 61801, USA

  8. ANDREW G. WEBB Aachen 2)Department of Radiology, C.J.Gorter Center for High Field MRI

    Centre National de la Recherche Scientifique · Carle Foundation Hospital · ITMO University · Aix-Marseille Université · Sergio Arboleda University · Leiden University Medical Center · Universidad Nacional de Colombia · Institut Fresnel · Centrale Méditerranée

    Affiliation as printed

    1)Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia

    2)Department of Radiology, C.J.Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands

    3)Department of Physics, Universidad Nacional de Colombia, Bogota, 111321, Colombia

    4)School of Exact Sciences and Engineering, Universidad Sergio Arboleda, Bogota, 111711, Colombia

    5)Aix Marseille University, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France

    6)Stevens Research Center, Carle Foundation Hospital, Urbana, IL 61801, USA

  9. Stanislav Glybovski Aachen 2)Department of Radiology, C.J.Gorter Center for High Field MRI

    Centre National de la Recherche Scientifique · Carle Foundation Hospital · ITMO University · Aix-Marseille Université · Sergio Arboleda University · Leiden University Medical Center · Universidad Nacional de Colombia · Institut Fresnel · Centrale Méditerranée

    Affiliation as printed

    1)Department of Physics and Engineering, ITMO University, St. Petersburg, 197101, Russia

    2)Department of Radiology, C.J.Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, 2333 ZA, The Netherlands

    3)Department of Physics, Universidad Nacional de Colombia, Bogota, 111321, Colombia

    4)School of Exact Sciences and Engineering, Universidad Sergio Arboleda, Bogota, 111711, Colombia

    5)Aix Marseille University, CNRS, Centrale Marseille, Institut Fresnel, F-13013 Marseille, France

    6)Stevens Research Center, Carle Foundation Hospital, Urbana, IL 61801, USA

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