Spin polarised He-3 gas for NMR imaging

Abstract : Polarised He-3 gas has been used since 1996 to make in vivo lung NMR images of increasing quality. For the methodological studies performed by various groups so far, hyperpolarised (HP) gas is obtained by laser optical pumping. We present examples of HP gas MRI investigations with potential diagnostic applications. We report on our MRI work at low field (0.1 T), which could result in reduced requirements in equipment and He-3 gas. The growing interest in He-3 gas MRI should lead to the development of cost-efficient schemes to produce large amounts of HP gas and to efficiently recycle He-3. Cryogenic techniques have been proposed to polarise or compress 3He gas. Their potential interest is discussed considering recent technical developments. (C) 2000 Elsevier Science B.V. All rights reserved.
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Submitted on : Wednesday, February 13, 2019 - 8:55:41 PM
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  • HAL Id : hal-02018484, version 1

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Pierre-Jean Nacher, Geneviève Tastevin. Spin polarised He-3 gas for NMR imaging. PHYSICA B, 2000, 284-288, pp.2053-2054. ⟨hal-02018484⟩

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