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Alternative interpretations forahigh b-value diffusion-weighted fMRI signal changes
https://repo.qst.go.jp/records/64304
https://repo.qst.go.jp/records/643047b1fb87c-b738-42b3-aa26-24ff72816fde
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2011-09-07 | |||||
| タイトル | ||||||
| タイトル | Alternative interpretations forahigh b-value diffusion-weighted fMRI signal changes | |||||
| 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 |
Kershaw, Jeffrey
× Kershaw, Jeffrey× Ｋｅｒｓｈａｗ Ｊｅｆｆｒｅｙ |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | To date, all explanations put forward for high b-value diffusion-weighted fMRI (DW-fMRI) signal changes have been based on some form of compartmentalisation of in vivo water signal. Common to all of these models is the assumption that the diffusion coefficient of each compartment remains unchanged during stimulation. Instead, DW-fMRI signal changes are explained as a mixture of competing changes to compartmental volume fractions and transverse relaxation rates. A prominent example is the cell-swelling mechanism, where it has been hypothesised that changes to the volumes of slow- and fast-diffusion tissue compartments allow processes closer to the neuronal activity than the haemodynamic response to be observed with high b-value DW-fMRI. In this presentation, I will discuss several alternative interpretations for high b-value DW-fMRI signal changes that are also based on compartmentalisation of the signal. | |||||
| 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 | 第13回日本ヒト脳機能マッピング学会 | |||||
| 発表年月日 | ||||||
| 日付 | 2011-09-02 | |||||
| 日付タイプ | Issued | |||||
