A
Alessandro Ramalli
Researcher at University of Florence
Publications - 146
Citations - 1911
Alessandro Ramalli is an academic researcher from University of Florence. The author has contributed to research in topics: Imaging phantom & Beamforming. The author has an hindex of 19, co-authored 146 publications receiving 1429 citations. Previous affiliations of Alessandro Ramalli include University of Lyon & Katholieke Universiteit Leuven.
Papers
More filters
Journal ArticleDOI
ULA-OP 256: A 256-Channel Open Scanner for Development and Real-Time Implementation of New Ultrasound Methods
Enrico Boni,Luca Bassi,Alessandro Dallai,Francesco Guidi,Valentino Meacci,Alessandro Ramalli,Stefano Ricci,Piero Tortoli +7 more
TL;DR: The design criteria and hardware/software implementation details of a new 256-channel ultrasound advanced open platform, organized in a modular architecture, capable of finely controlling all transmit (TX) and receive (RX) signals is reported.
Journal ArticleDOI
A reconfigurable and programmable FPGA-based system for nonstandard ultrasound methods
Enrico Boni,Luca Bassi,Alessandro Dallai,Francesco Guidi,Alessandro Ramalli,Stefano Ricci,J. Housden,Piero Tortoli +7 more
TL;DR: The ULtrasound Advanced Open Platform (ULA-OP), recently developed in the University laboratory, is shown to be a flexible tool that can be easily adapted to a wide range of applications.
Journal ArticleDOI
Density-tapered spiral arrays for ultrasound 3-D 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.
Journal ArticleDOI
Multi-Transmit Beam Forming for Fast Cardiac Imaging—Experimental Validation and In Vivo Application
TL;DR: This study aimed to experimentally verify theoretical predictions both in vitro and in vivo to demonstrate, for the first time, that cardiac MLT imaging is feasible and is thus the first study to demonstrate that this new ultrasound imaging paradigm is viable.
Journal ArticleDOI
High Frame-Rate, High Resolution Ultrasound Imaging With Multi-Line Transmission and Filtered-Delay Multiply And Sum Beamforming.
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.