Summary
Recent advances in magnetic resonance (MR) have made possible not only anatomical but functional mapping of the brain. The advantages of functional mapping with MRI are that the procedure is non-invasive, gives high temporal and spatial resolution, and makes use of equipment widely in the clinic. We introduce several new methods of detecting stroke lesions and evaluating the pathophysiology of cerebral ischemic disorders using a clinical 1.5T and an experimental 4.7T MR apparatus, including 1) a MR diffusion technique to detect acute stroke, 2) a MR perfusion technique to evaluate stroke areas using both spin labeling and Gd-dynamic susceptibility methods, 3) the basic and clinical application of fMRI, 4) activity-induced manganese (AIM) MRI for functional mapping and detecting acute ischemic lesions in experimental animals, and 5) multi-slice MR spectroscopic imaging to observe brain metabolites of cerebral ischemia and brain tumors. We emphasize that MR functional mapping of the brain has excellent potential for detecting acute stroke lesions and evaluating cerebral perfusion, cerebral function, and cerebral metabolism in clinical fields. Moreover, these methods should be useful for analyzing the pathophysiolgy of ischemic brain, especially when determining the therapeutic time window in acute cerebral ischemia.
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© 2002 Springer-Verlag Tokyo
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Tanaka, C. et al. (2002). Evaluation and analysis of brain attack using MR functional imaging. In: Kikuchi, H. (eds) Strategic Medical Science Against Brain Attack. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68430-5_18
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DOI: https://doi.org/10.1007/978-4-431-68430-5_18
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-68432-9
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