Wavelet transform analysis to assess oscillations in pial artery pulsation at the human cardiac frequency

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00159816%3A_____%2F15%3A00062954" target="_blank" >RIV/00159816:_____/15:00062954 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.mvr.2015.03.003" target="_blank" >http://dx.doi.org/10.1016/j.mvr.2015.03.003</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.mvr.2015.03.003" target="_blank" >10.1016/j.mvr.2015.03.003</a>

Result language
angličtina
Original language name
Wavelet transform analysis to assess oscillations in pial artery pulsation at the human cardiac frequency
Original language description
Pial artery adjustments to changes in blood pressure (BP)may last only seconds in humans. Using a novelmethod called near-infrared transillumination backscattering sounding (NIR-T/BSS) that allows for the non-invasive measurement of pial artery pulsation(cc-TQ) in humans, we aimed to assess the relationship between spontaneous oscillations in BP and cc-TQ at frequencies between 0.5 Hz and 5 Hz. We hypothesized that analysis of very short data segments would enable the estimation of changes in the cardiac contribution to the BP vs. cc-TQ relationship during very rapid pial artery adjustments to external stimuli. BP and pial artery oscillations during baseline (70 s and 10 s signals) and the response to maximal breath-hold apnea were studied in eighteenhealthy subjects. The cc-TQ was measured using NIR-T/BSS; cerebral blood flow velocity, the pulsatility index and the resistive index were measured using Doppler ultrasound of the left internal carotid artery; heart rate and beat-to-beat
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
FA - Cardiovascular diseases including cardio-surgery
OECD FORD branch
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Project
<a href="/en/project/ED1.100%2F02%2F0123" target="_blank" >ED1.100/02/0123: St. Anne´s University Hospital Brno - International Clinical Research Center (FNUSA-ICRC)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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