Abstract
Due to the difficult identification of the Aortic valve Opening (AO), Pulse Transit Time (PTT) is often surrogated by the Pulse Arrival Time (PAT) in which AO is approximated by the R peak in the ECG signal. This procedure introduces a fraction of the Pre Ejection Period variability into the PAT dynamics and makes the PAT variability partially different from the PTT variability. In this pilot study we aim to quantifY the possible discrepancies between PTT and PAT dynamics on a beatto-beat basis, In 5 sitting healthy subject we simultaneously recorded ECG, continuous finger blood pressure and the chest micro-accelerations produced by the heart contraction (the seismocardiogram) before and after a 100W exercise at the cycloergometer, When compared to PTT, PAT is characterized not only by the expected greater mean value but also by a larger beat-to-beat variability, The spectral analysis and a subsequent averaging of the data indicates that the correlation between PTT and PAT dramatically increases when the high frequency components of their variability are removed.
| Original language | English |
|---|---|
| Title of host publication | Computing in Cardiology |
| Publisher | IEEE Computer Society |
| Pages | 253-256 |
| Number of pages | 4 |
| Volume | 42 |
| ISBN (Print) | 9781509006854 |
| DOIs | |
| Publication status | Published - Feb 16 2016 |
| Event | 42nd Computing in Cardiology Conference, CinC 2015 - Nice, France Duration: Sep 6 2015 → Sep 9 2015 |
Other
| Other | 42nd Computing in Cardiology Conference, CinC 2015 |
|---|---|
| Country | France |
| City | Nice |
| Period | 9/6/15 → 9/9/15 |
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ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
- Computer Science(all)
Cite this
Aortic-finger pulse transit time vs. R-derived Pulse Arrival Time : A beat-to-beat assessment. / Vaini, Emanuele; Lombardi, Prospero; Di Rienzo, Marco.
Computing in Cardiology. Vol. 42 IEEE Computer Society, 2016. p. 253-256 7408634.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Aortic-finger pulse transit time vs. R-derived Pulse Arrival Time
T2 - A beat-to-beat assessment
AU - Vaini, Emanuele
AU - Lombardi, Prospero
AU - Di Rienzo, Marco
PY - 2016/2/16
Y1 - 2016/2/16
N2 - Due to the difficult identification of the Aortic valve Opening (AO), Pulse Transit Time (PTT) is often surrogated by the Pulse Arrival Time (PAT) in which AO is approximated by the R peak in the ECG signal. This procedure introduces a fraction of the Pre Ejection Period variability into the PAT dynamics and makes the PAT variability partially different from the PTT variability. In this pilot study we aim to quantifY the possible discrepancies between PTT and PAT dynamics on a beatto-beat basis, In 5 sitting healthy subject we simultaneously recorded ECG, continuous finger blood pressure and the chest micro-accelerations produced by the heart contraction (the seismocardiogram) before and after a 100W exercise at the cycloergometer, When compared to PTT, PAT is characterized not only by the expected greater mean value but also by a larger beat-to-beat variability, The spectral analysis and a subsequent averaging of the data indicates that the correlation between PTT and PAT dramatically increases when the high frequency components of their variability are removed.
AB - Due to the difficult identification of the Aortic valve Opening (AO), Pulse Transit Time (PTT) is often surrogated by the Pulse Arrival Time (PAT) in which AO is approximated by the R peak in the ECG signal. This procedure introduces a fraction of the Pre Ejection Period variability into the PAT dynamics and makes the PAT variability partially different from the PTT variability. In this pilot study we aim to quantifY the possible discrepancies between PTT and PAT dynamics on a beatto-beat basis, In 5 sitting healthy subject we simultaneously recorded ECG, continuous finger blood pressure and the chest micro-accelerations produced by the heart contraction (the seismocardiogram) before and after a 100W exercise at the cycloergometer, When compared to PTT, PAT is characterized not only by the expected greater mean value but also by a larger beat-to-beat variability, The spectral analysis and a subsequent averaging of the data indicates that the correlation between PTT and PAT dramatically increases when the high frequency components of their variability are removed.
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U2 - 10.1109/CIC.2015.7408634
DO - 10.1109/CIC.2015.7408634
M3 - Conference contribution
SN - 9781509006854
VL - 42
SP - 253
EP - 256
BT - Computing in Cardiology
PB - IEEE Computer Society
ER -