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Article Dans Une Revue IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control Année : 2021

Real-time 3-D Spectral Doppler Analysis with a Sparse Spiral Array

Alessandro Ramalli
  • Fonction : Auteur
Enrico Boni
  • Fonction : Auteur
Claudio Giangrossi
  • Fonction : Auteur
Paolo Mattesini
  • Fonction : Auteur
Alessandro Dallai
  • Fonction : Auteur
Herve Liebgott
Piero Tortoli
  • Fonction : Auteur

Résumé

2-D sparse arrays may push the development of lowcost 3-D systems, not needing to control thousands of elements by expensive application-specific integrated circuits. However, there is still some concern about their suitability in applications, such as Doppler investigation, which inherently involve poor signal-tonoise ratios (SNRs). In this paper, a novel real-time 3-D pulsed-wave Doppler system, based on a 256-element 2-D spiral array, is presented. Coded transmission and matched filtering were implemented to improve the system SNR. Standard sonograms as well as multigate spectral Doppler (MSD) profiles, along lines that can be arbitrarily located in different planes, are presented. The performance of the system was assessed quantitatively on experimental data obtained from a straight tube flow phantom. An SNR increase of 11.4 dB was measured by transmitting linear chirps instead of standard sinusoidal bursts. For a qualitative assessment of the system performance in more realistic conditions, an anthropomorphic phantom of the carotid arteries was used. Finally, real-time B-mode and MSD images were obtained from healthy volunteers.
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Dates et versions

hal-03116046 , version 1 (20-01-2021)

Identifiants

Citer

Alessandro Ramalli, Enrico Boni, Claudio Giangrossi, Paolo Mattesini, Alessandro Dallai, et al.. Real-time 3-D Spectral Doppler Analysis with a Sparse Spiral Array. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2021, pp.1-1. ⟨10.1109/TUFFC.2021.3051628⟩. ⟨hal-03116046⟩
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