Optimisation de Réseaux Ultrasonores Haute Densité

TOURS-BU Médecine (372612103) / SudocSudocFranceF

On the use of a specific 5x128-element array transducer for quasi-static ultrasound elastography

International audienc

Parametric study of a thin piezoelectric cantilever for energy harvesting applications

International audienc

Pulse wave velocity measurement along the ulnar artery in the wrist region using a high frequency ultrasonic array

International audienc

Pulse wave velocity measurement along the ulnar artery in the wrist region using a high-frequency ultrasonic probe with H-topology

International audienc

Acoustic Power Transmission Through Air/Skin Interface Using a 400kHz Focused Airborne Transducer Array

International audienc

A high-frequency linear probe with H-topology for PWV measurements on superficial arteries

International audienc

Parametric study of a thin piezoelectric cantilever for energy harvesting applications

International audienc

3D Carotid Artery Flow Imaging Using Compressive Sensing with a Spatial Coding Mask: A Simulation Study

It has been previously demonstrated that applying an aberrating mask for 2D compressive imaging using a low number of sensors (elements) can significantly improve image resolution, as evaluated via the point spread function. Here we investigate the potential to apply a similar approach for 3D flow monitoring. We conducted a 3D k-Wave simulation using a 5x5 sensor array coupled to a physical coding mask, performing B-mode and power Doppler imaging on a 3D carotid artery flow model. An approximately three times smaller lateral PSF was achieved at the cost of increased background clutter level and slightly increased axial PSF. A better definition of the vessel border and finer flow speckle were observed in power Doppler imaging. Our results suggest that 3D compressive imaging using a very low sensor count of 25 with spatial coding mask has the potential to monitor 3D carotid artery flow.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Signal Processing System