Design and evaluation of a 32-channel phased-array coil for lung imaging with hyperpolarized 3-helium

Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine
Florian M MeiseLaura M Schreiber

Abstract

Imaging with hyperpolarized 3-helium is becoming an increasingly important technique for MRI diagnostics of the lung but is hampered by long breath holds (>20 sec), which are not always applicable in patients with severe lung disease like chronic obstructive pulmonary disease (COPD) or alpha-1-anti-trypsin deficiency. Additionally, oxygen-induced depolarization decay during the long breath holds complicates interpretation of functional data such as apparent diffusion coefficients. To address these issues, we describe and validate a 1.5-T, 32-channel array coil for accelerated (3)He lung imaging and demonstrate its ability to speed up imaging (3)He. A signal-to-noise ratio increase of up to a factor of 17 was observed compared to a conventional double-resonant birdcage for unaccelerated imaging, potentially allowing increased image resolution or decreased gas production requirements. Accelerated imaging of the whole lung with one-dimensional and two-dimensional acceleration factors of 4 and 4 x 2, respectively, was achieved while still retaining excellent image quality. Finally, the potential of highly parallel detection in lung imaging is demonstrated with high-resolution morphologic and functional images.

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Citations

Dec 6, 2014·NMR in Biomedicine·Mathieu SarracanieXavier Maître
Mar 18, 2011·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Davide SantoroLaura M Schreiber
Nov 8, 2012·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Isabel DregelyF William Hersman
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May 17, 2011·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Martin H DeppeJim M Wild
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May 7, 2014·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Yulin V ChangDmitriy A Yablonskiy
Sep 13, 2014·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·M GüldnerM Terekhov
Mar 5, 2013·Journal of Magnetic Resonance·Boris Keil, Lawrence L Wald
Sep 23, 2018·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Jana HutterJoseph V Hajnal
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Nov 22, 2013·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Berkin BilgicKawin Setsompop
Feb 22, 2017·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Daniel PolakBerkin Bilgic
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Feb 27, 2021·Progress in Nuclear Magnetic Resonance Spectroscopy·Helen MarshallJim M Wild

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