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- W2082426036 abstract "As a non-invasive method, the Doppler ultrasound technique is used to detect the vessel stenosis. To search for characteristics of Doppler ultrasound signals sensitive to the stenosis, a computer simulation approach is proposed in this paper to generate Doppler ultrasound signals from vessels with various stenosis degrees. The blood flow velocity distribution in a stenosed vessel is firstly calculated using the transient finite element method (FEM). Then the power spectral density of Doppler signals is estimated using the overall-distribution nonparametric estimation method. Finally Doppler signals are generated using the cosine-superposed method. The proposed approach is proved to be useful for simulating Doppler ultrasound signals from vessels with various stenosis degrees. It is also shown that characteristics of Doppler ultrasound signals may be used to estimate the vessel's stenosis degree." @default.
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- W2082426036 date "2006-12-01" @default.
- W2082426036 modified "2023-09-25" @default.
- W2082426036 title "Doppler ultrasound signals simulation from vessels with various stenosis degrees" @default.
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- W2082426036 doi "https://doi.org/10.1016/j.ultras.2006.06.028" @default.
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