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二次元レーザー血流計を用いた血流測定の特徴
https://hsuh.repo.nii.ac.jp/records/9996
https://hsuh.repo.nii.ac.jp/records/9996c513d699-5d6f-490a-9bc3-9c4f4fbdd14c
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
二次元レーザー血流計を用いた血流測定の特徴 (2.0 MB)
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| Item type | 紀要論文(ELS) / Departmental Bulletin Paper(ELS)(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2006-12-01 | |||||
| タイトル | ||||||
| タイトル | 二次元レーザー血流計を用いた血流測定の特徴 | |||||
| 言語 | ja | |||||
| タイトル | ||||||
| タイトル | Characteristics of blood flow measurements using laser speckle imaging | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Laser speckle imaging | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Laser-Doppler flowmetry | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Parasympathetic vasodilator fiber | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Lip blood flow | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Cold test | |||||
| 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 | departmental bulletin paper | |||||
| ページ属性 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | P(論文) | |||||
| 言語 | ja | |||||
| 記事種別(日) | ||||||
| ja | ||||||
| 原著 | ||||||
| 記事種別(英) | ||||||
| en | ||||||
| ORIGINAL REPORT | ||||||
| 著者名(日) |
渡邉, 秀和
× 渡邉, 秀和× 新岡, 丈治× 石井, 久淑× 和泉, 博之 |
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| 著者名(英) |
WATANABE, Hidekazu
× WATANABE, Hidekazu× NIIOKA, Takeharu× ISHII, Hisayoshi× IZUMI, Hiroshi |
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| 著者所属(日) | ||||||
| ja | ||||||
| 北海道医療大学歯学部口腔生理学講座:東北大学大学院医学系研究科疼痛制御科学分野 | ||||||
| 著者所属(日) | ||||||
| ja | ||||||
| 北海道医療大学歯学部口腔生理学講座 | ||||||
| 著者所属(日) | ||||||
| ja | ||||||
| 北海道医療大学歯学部口腔生理学講座 | ||||||
| 著者所属(日) | ||||||
| ja | ||||||
| 北海道医療大学歯学部口腔生理学講座 | ||||||
| 著者所属(英) | ||||||
| en | ||||||
| Department of Oral Physiology, School of Dentistry, Health Sciences University of Hokkaido:Department of Pain Control, Graduate school of Medicine, Tohoku University | ||||||
| 著者所属(英) | ||||||
| en | ||||||
| Department of Oral Physiology, School of Dentistry, Health Sciences University of Hokkaido | ||||||
| 著者所属(英) | ||||||
| en | ||||||
| Department of Oral Physiology, School of Dentistry, Health Sciences University of Hokkaido | ||||||
| 著者所属(英) | ||||||
| en | ||||||
| Department of Oral Physiology, School of Dentistry, Health Sciences University of Hokkaido | ||||||
| 抄録(英) | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Three types of blood flow measurement methods using laser irradiation such as laser-Doppler flowmetry, laser-Doppler imaging, and laser speckle imaging have been utilized for measuring the peripheral blood flow because of the benefits of low invasiveness and as they enable real-time measurements. Laser-Doppler flowmetry has first used for the blood flow measurements but does not appear to be suitable for quantitative measurements as the equipment can not perform measurements over large areas. Laser speckle imaging has recently been reported to measure two-dimensional images of blood flows. The present study was designed to compare the blood flow changes measured by laser speckle imaging and laser-Doppler flowmetry. The blood flow changes were evoked either by parasympathetic mediated vasodilatations in the lip elicited by electrical stimulation of the lingual nerve in urethane-anesthetized rats, or by sympathetic mediated vasoconstrictions in human hands elicited by cold tests. The patterns of blood flow changes in laser speckle imaging and laser-Doppler flowmetry were very similar in blood flow changes, both increases and decreases were measured, although the relative change from the basal blood flow of the laser speckle imaging was smaller (50-60%) than that of laser-Doppler flowmetry. The quantitative analysis in the cold tests with laser speckle imaging showed that tissue perfusion in the fingers resemble the anatomical blood vessel distribution. The advantages of laser speckle imaging for the measurement of blood flow are as the follows: (i) the blood flow is visualized as a two-dimensional image, (ii) the area where the blood flow was measured can be changed on saved image data, (iii) the image sizes can be varied (by zooming) from 8×6mm to 280×210mm, and (iv) the averaged data are not absolute values but can be used quantitatively in comparison studies. | |||||
| 言語 | en | |||||
| 雑誌書誌ID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA12060694 | |||||
| 書誌情報 |
ja : 北海道医療大学歯学雑誌 巻 25, 号 2, p. 109-117, 発行日 2006-12 |
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