Two‐dimensional1H spectroscopic imaging for evaluating the local metabolic response to focal ischemia in the conscious rat
作者:
Michel Peres,
Dominique Bourgeois,
Simon Roussel,
Yann Lefur,
Philippe Devoulon,
Chantal Remy,
Bertrand Barrere,
Michel Decorps,
Elisabeth Pinard,
Danièle Riche,
Alim‐Louis Benabid,
Jacques Seylaz,
期刊:
NMR in Biomedicine
(WILEY Available online 1992)
卷期:
Volume 5,
issue 1
页码: 11-19
ISSN:0952-3480
年代: 1992
DOI:10.1002/nbm.1940050104
出版商: John Wiley&Sons, Ltd.
数据来源: WILEY
摘要:
AbstractTwo‐dimensional1H spectroscopic imaging and magnetic resonance imaging were used to study focal ischemia induced by middle cerebral artery occlusion in rats. A water suppressing spin‐echo sequence was used at 4.7 T. Phase encoding during the spin‐echo delay (TE = 272 ms) yielded an 8 × 8 array of 35 μL voxels. The injured area of the brain had a higher lactate level and markedly lowerN‐acetyl aspartate, creatine and choline levels than did the non‐ischemic regions. The spectroscopic imaging data clearly showed the localization of the infarct, which agreed well with both magnetic resonance imaging and the histological data obtained post‐mortem. This study demonstrates the potential usefulness of combining magnetic resonance imaging and1H spectroscopic imaging for studying animal models of stroke, and indicates the suitability of the technique for further pharmacologic
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