MRI of the lung using hyperpolarized He-3 at very low magnetic field (3 mT)

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dc.creatorBidinosti, C. P.
dc.creatorChoukeife, J.
dc.creatorTastevin, G.
dc.creatorVignaud, A.
dc.creatorNacher, P. -J.
dc.date2004-01-26
dc.date.accessioned2026-07-07T05:51:03Z
dc.date.available2026-07-07T05:51:03Z
dc.descriptionOptical pumping of He-3 produces large (hyper) nuclear-spin polarizations independent of the magnetic resonance imaging (MRI) field strength. This allows lung MRI to be performed at reduced fields with many associated benefits, such as lower tissue susceptibility gradients and decreased power absorption rates. Here we present results of 2D imaging as well as accurate 1D gas diffusion mapping of the human lung using He-3 at very low field (3 mT). Furthermore, measurements of transverse relaxation in zero applied gradient are shown to accurately track pulmonary oxygen partial pressure, opening the way for novel imaging sequences.
dc.description10 pages, 3 figures. Presented at 11th ISMRM meeting, Toronto 2003; to be published in Magnetic Resonance Materials in Physics, Biology, and Medicine (MAGMA)
dc.identifierhttps://arxiv.org/abs/physics/0401130
dc.identifierhttp://arxiv.org/abs/physics/0401130
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/85903
dc.subjectMedical Physics
dc.titleMRI of the lung using hyperpolarized He-3 at very low magnetic field (3 mT)
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