P. Berti
University of Florence
5 Papers
65 Citations
P. Berti is an academic researcher from University of Florence. The author has contributed to research in topics: Doppler effect & Longitudinal wave. The author has an hindex of 3, co-authored 5 publications.
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Papers
An FFT-based flow profiler for high-resolution in vivo investigations
TL;DR: The operation of a newly developed multigate instrument capable of performing, in real time, 64-point fast Fourier transforms of Doppler signals sampled from 64 different range cells is discussed.
45
Flow imaging with pulsed Doppler ultrasound and flow phantoms
TL;DR: The results of this study show that it is feasible to understand the acoustic transmission behavior of a flow phantom, based on a knowledge of the material properties, and to demonstrate the usefulness of doing so.
14
Refraction Artifacts in Doppler Spectra Due to Dual Mode Ultrasound Propagation
P. Berti,Alessandro Gubbini,Piero Tortoli +2 more
- 01 Jan 1997
TL;DR: In this article, the effects of shear wave propagation in both shear and longitudinal modes were considered, e.g. through the rigid tubes used in some flow phantoms.
3
Novel instrument for high‐resolution ultrasound flow imaging
TL;DR: In this article, a novel ultrasound multigate instrument is presented capable of providing a detailed analysis of Doppler signals originated from 64 different range cells, which are transformed into the frequency domain without loss of information, and significant results obtained in vitro and in vivo demonstrate that the new instrument is capable of accurately reproducing the actual velocity profiles of the interrogated flow.
3
Flow imaging with pulsed Doppler ultrasound: refraction artefacts and dual mode propagation
Piero Tortoli,P. Berti,Francesco Guidi,R.S. Thompson,Geoffrey K. Aldis +4 more
- 05 Oct 1997
TL;DR: In this article, the authors investigated the effect of deformation of the ultrasound beam produced by piezoelectric transducers on velocity measurements performed by Doppler equipment and found that the velocity profiles detected from flow within a plastic tube are significantly distorted when the ultrasound was oriented at angles over a wide range around a critical angle.
2