https://scholars.lib.ntu.edu.tw/handle/123456789/611877
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Ebden M.J. | en_US |
dc.contributor.author | Tarassenko L. | en_US |
dc.contributor.author | Payne S.J. | en_US |
dc.contributor.author | Darowski A. | en_US |
dc.contributor.author | Price J.D. | en_US |
dc.contributor.author | STEPHEN JOHN PAYNE | en_US |
dc.creator | Ebden M.J.;Tarassenko L.;Payne S.J.;Darowski A.;Price J.D. | - |
dc.date.accessioned | 2022-05-24T06:21:22Z | - |
dc.date.available | 2022-05-24T06:21:22Z | - |
dc.date.issued | 2004 | - |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-11044236949&partnerID=40&md5=5146d43030e19d4afc85f4805cd1ef2a | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/611877 | - |
dc.description.abstract | The Smoothed Pseudo Wigner-Ville Distribution (SPWVD) is used for the time-frequency analysis of variations in RR interval. A novel technique to determine the smoothing window lengths is implemented, and a new heart rate variability (HRV) metric is developed, instantaneous center frequency variability (ICFV), which uses the time-frequency map generated by the SPWVD. The technique is then applied to 50 patients with unexplained falls and age > 60, under-going head-upright tilt table testing (HUT). Eighteen of the patients were diagnosed with vasovagal syndrome. Attempts at syncope prediction using the new metric is an improvement on traditional techniques: an ICFV less than 0.07 Hz from 90 s to 180 s after tilt is predictive of a negative test (negative predictive value: 0.77). The comorbidity and autonomie degeneration present in elderly patients are thought to be responsible for lowering the negative predictive value. | - |
dc.relation.ispartof | Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings | - |
dc.subject | Blood vessel prostheses | - |
dc.subject | Cardiovascular system | - |
dc.subject | Electrocardiography | - |
dc.subject | Frequency domain analysis | - |
dc.subject | Neurology | - |
dc.subject | Time domain analysis | - |
dc.subject | Heart rate variability (HRV) | - |
dc.subject | Vasovagal syncopes | - |
dc.subject | Vasovagal syndromes | - |
dc.subject | Biomedical engineering | - |
dc.title | Time-frequency analysis of the EGG in the diagnosis of vasovagal syndrome in older people | en_US |
dc.type | conference paper | en |
dc.identifier.scopus | 2-s2.0-11044236949 | - |
dc.relation.pages | 290-293 | - |
dc.relation.journalvolume | 26 I | - |
item.fulltext | no fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_5794 | - |
item.cerifentitytype | Publications | - |
item.openairetype | conference paper | - |
item.grantfulltext | none | - |
crisitem.author.dept | Applied Mechanics | - |
crisitem.author.parentorg | College of Engineering | - |
顯示於: | 應用力學研究所 |
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