TY - GEN
T1 - Model-based Analysis of Effects of Systolic Blood Pressure on Frequency Characteristics of the Second Heart Sound
AU - Zhang, Xin-Yu
AU - Zhang, Yuan-Ting
PY - 2006/8
Y1 - 2006/8
N2 - Previous studies have shown that it is possible to estimate pulmonary and systemic blood pressure using the spectral information of the second heart sound. A mathematical model for the vibration of the closed aortic valve is proposed in the paper with the introduction of the nonlinear elasticity of the aortic wall tissue. Based on the parametric analysis, the effect of the aortic blood pressure at the moment of valve closure on vibration of aortic valve and produced sound is examined. The simulation results show that the increasing aortic pressure results in an increase in frequency and amplitude of produced sound. The results of this study also suggest that it is the increasing resonant frequency of the blood column induced by elevated distending pressure that plays significant role in the process. The application of the modeling study could be extended to interpret the relations of the second heart sound to pulmonary blood pressure.
AB - Previous studies have shown that it is possible to estimate pulmonary and systemic blood pressure using the spectral information of the second heart sound. A mathematical model for the vibration of the closed aortic valve is proposed in the paper with the introduction of the nonlinear elasticity of the aortic wall tissue. Based on the parametric analysis, the effect of the aortic blood pressure at the moment of valve closure on vibration of aortic valve and produced sound is examined. The simulation results show that the increasing aortic pressure results in an increase in frequency and amplitude of produced sound. The results of this study also suggest that it is the increasing resonant frequency of the blood column induced by elevated distending pressure that plays significant role in the process. The application of the modeling study could be extended to interpret the relations of the second heart sound to pulmonary blood pressure.
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-34047131869&origin=recordpage
U2 - 10.1109/IEMBS.2006.259859
DO - 10.1109/IEMBS.2006.259859
M3 - RGC 32 - Refereed conference paper (with host publication)
C2 - 17946534
SN - 1424400325
T3 - Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)
SP - 2888
EP - 2891
BT - Proceedings of the 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'06
PB - IEEE
T2 - 28<sup>th</sup> Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2006)
Y2 - 30 August 2006 through 3 September 2006
ER -