Design, implementation, and medical applications of 2-D ultrasound sparse arrays

A Ramalli, E Boni, E Roux, H Liebgott… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
An ultrasound sparse array consists of a sparse distribution of elements over a 2-D aperture.
Such an array is typically characterized by a limited number of elements, which in most …

Capacitive micromachined ultrasound transducers for intravascular ultrasound imaging

J Wang, Z Zheng, J Chan, JTW Yeow - Microsystems & …, 2020 - nature.com
Intravascular ultrasound (IVUS) is a burgeoning imaging technology that provides vital
information for the diagnosis of coronary arterial diseases. A significant constituent that …

Sparse 2-D PZT-on-PCB arrays with density tapering

L Wei, E Boni, A Ramalli, F Fool… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Two-dimensional (2-D) arrays offer volumetric imaging capabilities without the need for
probe translation or rotation. A sparse array with elements seeded in a tapering spiral …

Miniaturized 0.13-μm CMOS front-end analog for AlN PMUT arrays

I Zamora, E Ledesma, A Uranga, N Barniol - Sensors, 2020 - mdpi.com
This paper presents an analog front-end transceiver for an ultrasound imaging system
based on a high-voltage (HV) transmitter, a low-noise front-end amplifier (RX), and a …

High frame rate volumetric imaging of microbubbles using a sparse array and spatial coherence beamforming

L Wei, G Wahyulaksana, B Meijlink… - IEEE Transactions …, 2021 - ieeexplore.ieee.org
Volumetric ultrasound imaging of blood flow with microbubbles enables a more complete
visualization of the microvasculature. Sparse arrays are ideal candidates to perform …

Four-dimensional computational ultrasound imaging of brain hemodynamics

MD Brown, BS Generowicz, S Dijkhuizen… - Science …, 2024 - science.org
Four-dimensional ultrasound imaging of complex biological systems such as the brain is
technically challenging because of the spatiotemporal sampling requirements. We present …

RNS-based FPGA accelerators for high-quality 3D medical image wavelet processing using scaled filter coefficients

NN Nagornov, PA Lyakhov, MV Valueva… - IEEE …, 2022 - ieeexplore.ieee.org
Medical imaging using different modalities has many problems. The main ones are low
informativeness, various distortion noises, and a large amount of information. Fusion …

Architecture for an ultrasound advanced open platform with an arbitrary number of independent channels

D Mazierli, A Ramalli, E Boni, F Guidi… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Ultrasound open platforms are programmable and flexible tools for the development and test
of novel methods. In most cases, they embed the electronics for the independent control of …

Fully integrated pitch-matched AlScN PMUT-on-CMOS array for high resolution Ultrasound Images

E Ledesma, A Uranga, F Torres… - IEEE Sensors …, 2024 - ieeexplore.ieee.org
This article presents a fully integrated pitch-matched piezoelectric micromachined ultrasonic
transducers (PMUTs)-on-CMOS array with high potential in catheter-based ultrasound …

Fine pitch flexible printed circuit board patterning for miniaturized endoscopic MicroUltrasound arrays

CF Roa, N Singh, E Chérin, J Yin… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Microultrasound (micro-US) has become an invaluable tool for preclinical research and in
emerging applications in clinical diagnosis and treatment guidance. Several such …