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Time-course of deltaR2 during visual stimulation and hypercapnia diffusion-weighted fMRI experiments
https://repo.qst.go.jp/records/63885
https://repo.qst.go.jp/records/6388584e574f3-ea5f-4ae9-80e1-cb5c260d7247
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2010-05-14 | |||||
| タイトル | ||||||
| タイトル | Time-course of deltaR2 during visual stimulation and hypercapnia diffusion-weighted fMRI experiments | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Kuroiwa, Daigo
× Kuroiwa, Daigo× Kawaguchi, Hiroshi× Kershaw, Jeffrey× Tachibana, Atsumichi× Joonas, Autio× Hirano, Masaya× Aoki, Ichio× Kanno, Iwao× Obata, Takayuki× 黒岩 大悟× 川口 拓之× Ｋｅｒｓｈａｗ Ｊｅｆｆｒｅｙ× 橘 篤導× ヨーナス オーティオ× 青木 伊知男× 菅野 巖× 小畠 隆行 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | It has been suggested that the BOLD effect contributes to heavily diffusion-weighted (DW) fMRI signal changes. The BOLD effect is usually interpreted as a change in transverse relaxation rate (deltaR2). In this study, deltaR2 during visual stimulation (VS) and hypercapnia (HC) DW fMRI experiments was estimated using a multiple spin-echo EPI acquisitions after motion-probing gradients. deltaR2 showed dependence on b-value during VS, but not during HC. The results suggest that deltaR2 at high b-value may demonstrate a higher sensitivity to neuronal activation than at lower b-values. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 18th Scientific Meeting & Exhibition | |||||
| 発表年月日 | ||||||
| 日付 | 2010-05-07 | |||||
| 日付タイプ | Issued | |||||
