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- W193669300 abstract "Physical effects can alter the properties of the pulses used in medical flow imaging systems and hence the mean velocity estimate. Three artefacts are considered: attenuation, non-linear propagation and interference. Although the shifts in mean frequency due to attenuation can be of the order of 100 kHz the effect on the velocity estimate is less dramatic. Non linear propagation measurements using commercial transducers show that the mean frequency of the pulse may be shifted by 30 kHz. However in the system considered the effect is much less. Also a simulation of a commercial processing system has been used to investigate how interference affects the mean velocity estimate." @default.
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- W193669300 date "1991-01-01" @default.
- W193669300 modified "2023-09-27" @default.
- W193669300 title "BLOOD VELOCITY ESTIMATION IN MEDICAL IMAGING - ARTEFACTS AND ERRORS" @default.
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- W193669300 doi "https://doi.org/10.1016/b978-0-7506-0389-8.50021-4" @default.
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