Ultrasound open platforms for next-generation imaging technique development

E Boni, CH Alfred, S Freear, JA Jensen… - IEEE transactions on …, 2018 - ieeexplore.ieee.org
Open platform (OP) ultrasound systems are aimed primarily at the research community. They
have been at the forefront of the development of synthetic aperture, plane wave, shear wave …

ULA-OP: An advanced open platform for ultrasound research

P Tortoli, L Bassi, E Boni, A Dallai… - IEEE transactions on …, 2009 - ieeexplore.ieee.org
The experimental test of novel ultrasound (US) investigation methods can be made difficult
by the lack of flexibility of commercial US machines. In the best options, these only provide …

Yield stress of cement grouts

M Rahman, J Wiklund, R Kotzé… - … and Underground Space …, 2017 - Elsevier
The rheology of cement grout is complex due to its thixotropic nature and the presence of a
yield stress. Despite the importance of the yield stress for grouting design, no standard …

FPGA-based system for in-line measurement of velocity profiles of fluids in industrial pipe flow

S Ricci, V Meacci, B Birkhofer… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
The rheology of a fluid flowing in an industrial process pipe can be calculated by combining
the pressure drop and the velocity profile that the fluid develops across the tube diameter …

Multi-channel pre-beamformed data acquisition system for research on advanced ultrasound imaging methods

CCP Cheung, CH Alfred, N Salimi… - IEEE transactions on …, 2012 - ieeexplore.ieee.org
The lack of open access to the pre-beamformed data of an ultrasound scanner has limited
the research of novel imaging methods to a few privileged laboratories. To address this …

Noninvasive simultaneous assessment of wall shear rate and wall distension in carotid arteries

P Tortoli, T Morganti, G Bambi, C Palombo… - Ultrasound in medicine …, 2006 - Elsevier
A novel technique has been developed for the noninvasive real-time simultaneous
assessment of both blood velocity profile and wall displacements in human arteries. The …

Method for microbubble characterization using primary radiation force

HJ Vos, F Guidi, E Boni, P Tortoli - IEEE transactions on …, 2007 - ieeexplore.ieee.org
Medical ultrasound contrast agents (UCA) have evolved from straight image enhancers to
pathophysiological markers and drug delivery vehicles. However, the exact dynamic …

Finding the peak velocity in a flow from its Doppler spectrum

D Vilkomerson, S Ricci, P Tortoli - IEEE transactions on …, 2013 - ieeexplore.ieee.org
The signal backscattered by blood cells crossing a sample volume produces a Doppler
power spectrum determined by the scatterers' velocity distribution. Because of intrinsic …

Performance tests of a new non-invasive sensor unit and ultrasound electronics

R Kotzé, S Ricci, B Birkhofer, J Wiklund - Flow Measurement and …, 2016 - Elsevier
Industrial applications involving pulsed ultrasound instrumentation require complete non-
invasive setups due to high temperatures, pressures and possible abrasive fluids. Recently …

Radial flow velocity profiles of a yield stress fluid between smooth parallel disks

TJ Shamu, L Zou, R Kotzé, J Wiklund, U Håkansson - Rheologica Acta, 2020 - Springer
In rock grouting, idealized 2D-radial laminar flow of yield stress fluids (YSF) is a fundamental
flow configuration that is used for cement grout spread estimation. A limited amount of works …