Spectral Analysis of Doppler Ultrasound Blood Flow Signals from Stenosed Vessel in a Steady Flow

摘要：

A simulation approach was proposed to analyze the spectra of Doppler signals from stenoed artery in a steady flow, which can provide a useful guidance for detecting the formation understanding, diagnosis and treatment of many cardiovascular diseases. Firstly, by solving Navier-Stokes equations, the velocity distributions in the vessels with various stenoed degrees are calculated. Secondly, power spectral density (PSD) of the Doppler signals is estimated according to the relationship of velocity profiles and power spectral density. Finally, Doppler signals are generated using cosine-superposed methods. The results show that the spectra of Doppler signals are similar to those found in practice. Therefore, the proposed approach is useful for simulating the spectra of Doppler ultrasound signals from stenoed artery in a steady flow.

关键词： Doppler signal Spectral analysis Power spectral density Stenosed Vessel

作者: Lifang Wang Yaquan Huang Yalin Tao

作者单位: Department of Automatic Control and mechanical engineering, Kunming University, Kunming, China Department of computer science and engineering, Information School,Yunnan University, Kunming, China School of computer science, and Engineering, Qujing normal University, Qujing, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 275-278

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）