https://scholars.lib.ntu.edu.tw/handle/123456789/32834
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor | National Taiwan University Dept Phys | zh_TW |
dc.contributor.author | Chao, P.T. | en |
dc.contributor.author | Jan, M.Y. | en |
dc.contributor.author | Hsiu, H. | en |
dc.contributor.author | Hsu, T.L. | en |
dc.contributor.author | Wang, W.K. | en |
dc.contributor.author | Lin, Y.Y. | en |
dc.creator | Chao, P.T.; Jan, M.Y.; Hsiu, H.; Hsu, T.L.; Wang, W.K.; Lin, Y.Y. | en |
dc.date | 2006 | - |
dc.date.accessioned | 2006-11-14T18:02:24Z | - |
dc.date.accessioned | 2018-06-28T09:45:07Z | - |
dc.date.available | 2006-11-14T18:02:24Z | - |
dc.date.available | 2018-06-28T09:45:07Z | - |
dc.date.issued | 2006 | - |
dc.identifier | 246246/2006111501211817 | zh_TW |
dc.identifier.uri | http://ntur.lib.ntu.edu.tw//handle/246246/2006111501211817 | - |
dc.description.abstract | Laser Doppler flowmetry (LDF) is a popular method for monitoring the microcirculation, but it does not provide absolute measurements. Instead, the mean flux response or energy distribution in the frequency domain is generally compared before & after stimulus. Using the heartbeat as a trigger, we investigated whether the relation between pressure & flux can be used to discriminate different microcirculatory conditions. We propose the following three pulsatile indices for evaluating the microcirculation condition from the normalized pressure & flux segment with a synchronized-averaging method: peak delay time (PDT), pressure rise time & flux rise time (FRT). The abdominal aortic blood pressure & renal cortex flux (RCF) signals were measured in spontaneously hypertensive rats (SHR) & Wistar Kyoto rats (WKY). The mean value of the RCF did not differ between SHR & WKY. However, the PDT was longer in SHR (87.14 ± 5.54 ms, mean ± SD) than in WKY (76.92 ± 2.62 ms; p < 0.001). The FRT was also longer in SHR (66.56 ± 1.98 ms) than in WKY (58.02 ± 1.77 ms; p < 0.001). We propose that a new dimension for comparing the LDF signals, which the results from the present study show, can be used to discriminate RCF signals that cannot be discriminated using traditional methods. | en |
dc.format | application/pdf | zh_TW |
dc.format.extent | 783002 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language | en-US | zh_TW |
dc.language.iso | zh_TW | - |
dc.publisher | Taipei:National Taiwan University Dept Phys | zh_TW |
dc.relation | INSTITUTE OF PHYSICS PUBLISHING PHYSICS IN MEDICINE & BIOLOGY Phys. Med. Biol. 51, 845–854 | en |
dc.relation.ispartof | INSTITUTE OF PHYSICS PUBLISHING PHYSICS IN MEDICINE & BIOLOGY Phys. Med. Biol. 51, 845–854 | - |
dc.source | http://www.iop.org/ | zh_TW |
dc.title | Evaluating microcirculation by pulsatile laser Doppler signal | en |
dc.type | journal article | en |
dc.relation.pages | - | - |
dc.identifier.uri.fulltext | http://ntur.lib.ntu.edu.tw/bitstream/246246/2006111501211817/1/1539.pdf | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
item.languageiso639-1 | zh_TW | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.fulltext | with fulltext | - |
顯示於: | 物理學系 |
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