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The Quantification of Tissue Sodium Concentration using 23Na-Magnetic Resonance Microscopy at 7 T: Probing the Acute Stroke Phase
WETTERLING, FRIEDRICH; FAGAN, ANDREW
Accurate identification of the potentially salvageable ischaemic penumbra is critical in identifying stroke patients who will benefit from thrombolysis and in designing future clinical trials of potential neuroprotectants. The perfusion/diffusion mismatch technique, currently used to detect penumbra is an indirect measure, lacking precision. The ability to accurately quantify TSC in vivo could allow developing of a direct bio-marker for tissue viability in stroke [1]. However, quantitative 23Na-Magnetic Resonance Microscopy (qNa-MRM) of the rat brain is challenging due to the low SNR measured in the MRM images, which results from the 23Na nucleus?s low in vivo concentration, low gyromagnetic ratio, fast transversal signal decay, and the required small voxel size (< 4 ?l).
Keyword(s): Neuroscience; MRM images; Next Generation Medical Devices
Publication Date:
2010
Type: Other
Peer-Reviewed: Yes
Language(s): English
Institution: Trinity College Dublin
Citation(s): F. Wetterling, L. Gallagher, I.M. Macrae, S. Junge, A.J. Fagan, The Quantification of Tissue Sodium Concentration using 23Na-Magnetic Resonance Microscopy at 7 T: Probing the Acute Stroke Phase, Proceedings of 15th Scientific Meeting of International Society for Magnetic Resonance in Medicine, 15th Scientific Meeting of International Society for Magnetic Resonance in Medicine, Stockholm, Sweden, May, 2010, 5173-
Alternative Title(s): Proceedings of 15th Scientific Meeting of International Society for Magnetic Resonance in Medicine -15th Scientific Meeting of International Society for Magnetic Resonance in Medicine
First Indexed: 2014-05-13 05:36:03 Last Updated: 2017-04-26 08:33:43