Alessandro Stuart Savoia

TL;DR: Results show that the DMAS beamformer outperforms DAS in both simulated and experimental trials and that the main improvement brought about by this new method is a significantly higher contrast resolution, which turns out into an increased dynamic range and better quality of B-mode images.

TL;DR: This paper presents the design, development, fabrication, and characterization of a 12-MHz ultrasound probe for medical imaging, based on a CMUT array, and assesses the performance of CMUTs with respect to conventional piezoelectric transducers.

TL;DR: This paper summarizes the fabrication, design, modeling, and characterization of 1D CMUT linear arrays for medical imaging, established in laboratories during the past 3 years, and indicates these devices as new generation arrays for acoustic imaging.

TL;DR: A method to design the layout of large circular arrays with a limited number of elements according to Fermat's spiral seeds and spatial density modulation is proposed and shown to be suitable for application to 3-D ultrasound imaging.

TL;DR: In MLT images, compared to standard Delay And Sum (DAS) beamforming including Tukey apodization, F-DMAS beamforming yields better suppression of cross-talk and improved lateral resolution, and preliminary in vivo cardiac images show that the frame rate can be improved up to 8-fold by combining F- DMAS and MLT without affecting the image quality.