Spatial and temporal resolution of aortic Doppler blood velocity signals in normal human subjects

Targett, Ralph C; McIlroy, Malcolm B.

doi:10.1016/0301-5629(85)90028-6

Ultrasound in Medicine & Biology

1985

DOI: 10.1016/0301-5629(85)90028-6

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Spatial and temporal resolution of aortic Doppler blood velocity signals in normal human subjects

Ralph C Targett

Malcolm B. McIlroy

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1989

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Asymmetry of Doppler spectrum in stenosis differentiation

Kałużyński

Tedgui

1989

Med. Biol. Eng. Comput.

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The asymmetry of the spectral distribution of ultrasonic Doppler flow velocity signals, assessed using the coefficient of skewness, is discussed as a criterion of stenosis differentiation. Its performance is compared with that of the index of turbulence intensity for both in vitro and in vivo flow Doppler signals, recorded distal to a stenosis. The power spectral distributions are computed using the direct Fourier transform and maximum likelihood method. The asymmetry of spectral distribution has proved to be a more efficient criterion than the turbulence intensity. The maximum likelihood method ensures better stenosis differentiation than the direct FFT method.

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Asymmetry of Doppler spectrum in stenosis differentiation

Kałużyński

Tedgui

1989

Med. Biol. Eng. Comput.

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show abstract

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Spatial and temporal resolution of aortic Doppler blood velocity signals in normal human subjects

Cited by 1 publication

References 12 publications

Asymmetry of Doppler spectrum in stenosis differentiation

Asymmetry of Doppler spectrum in stenosis differentiation

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