A human cerebral and cerebellar 8-channel transceive RF dipole coil array at 7T

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Jérémie D ClémentO Ipek

Abstract

Dipole antennas that provide high transmit field penetration with large coverage, and their use in a parallel transmit setup, may be advantageous in minimizing B <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mrow/> <mml:mn>1</mml:mn> <mml:mo>+</mml:mo></mml:msubsup> </mml:math> -field inhomogeneities at ultra-high field, i.e 7T. We have developed and evaluated an 8-channel RF dipole coil array for imaging the entire cerebral and cerebellar regions in man. A coil array was modeled with seven dipoles: six placed covering the occipital and temporal lobes; one covering the parietal lobe; and two loops covering the frontal lobe. Center-shortened and fractionated dipoles were simulated for the array configuration and assessed with respect to B <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mml:mrow/> <mml:mn>1</mml:mn> <mml:mo>+</mml:mo></mml:msubsup> </mml:math> -field at maximum specific absorption rate averaged over 10 g tissue regions in human brain. The whole-brain center-shortened dipoles with frontal loops coil array was constructed and its transmit properties were assessed with respect to MR images, B <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msubsup><mm...Continue Reading

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Citations

Dec 24, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Bei ZhangGraham Wiggins
Apr 14, 2020·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Adam MaunderJim M Wild
Jul 4, 2020·NMR in Biomedicine·Nikolai I AvdievichAnke Henning
Jul 7, 2020·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Nikolai I AvdievichAnke Henning
May 14, 2019·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Jérémie ClémentÖzlem Ipek
Dec 12, 2020·NMR in Biomedicine·Kyle M GilbertJoseph S Gati
Feb 26, 2021·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Nikolai I AvdievichKlaus Scheffler
May 13, 2021·NMR in Biomedicine·Nikolai I AvdievichKlaus Scheffler
Jul 8, 2021·NMR in Biomedicine·Nikos PriovoulosWietske van der Zwaag

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