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Detection of cortical laminar architecture using manganese-enhanced MRI
https://repo.qst.go.jp/records/45149
https://repo.qst.go.jp/records/45149f944cc0a-2eeb-45a0-b045-16e5c8fcec9b
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-05-07 | |||||
タイトル | ||||||
タイトル | Detection of cortical laminar architecture using manganese-enhanced MRI | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
C., Silva Afonso
× C., Silva Afonso× Hee, Lee Jung× W.-H., Wu Carolyn× Tucciarone, Jason× Pelled, Galit× Aoki, Ichio× P., Koretsky Alan× 青木 伊知男 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Changes in manganese-enhanced MRI (MEMRI) contrast across the rodent somatosensory cortex were compared to the cortical laminae as identified by tissue histology and administration of an anatomical tracer to cortex and thalamus. Across the cortical thickness, MEMRI signal intensity was low in layer I, increased in layer II, decreased in layer III until mid-layer IV, and increased again, peaking in layer V, before decreasing through layer VI. The reeler mouse mutant was used to confirm that the cortical alternation in MEMRI contrast was related to laminar architecture. Unlike in wild-type mice, the reeler cortex showed no appreciable changes in MEMRI signal, consistent with absence of cortical laminae in histological slides. The tract tracing ability of MEMRI was used to further confirm assignments and demonstrate laminar specificity. Twelve to 16 h after stereotaxic injections of MnCl2 to the ventroposterior thalamic nuclei, an overall increase in signal intensity was detected in primary somatosensory cortex compared to other brain regions. Maximum intensity projection images revealed a distinctly bright stripe located 600-700 mum below the pial surface, in layer IV. The data show that both systemic and tract tracing forms of MEMRI are useful for studying laminar architecture in the brain. | |||||
書誌情報 |
Journal of Neuroscience Methods 巻 167, 号 2, p. 246-257, 発行日 2007-09 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0165-0270 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.jneumeth.2007.08.020 |