Sub-wavelength lateral detection of tissue-approximating masses using an ultrasonic metamaterial lens

EL Walker, Y **, D Reyes, A Neogi - Nature Communications, 2020 - nature.com
Practically applied techniques for ultrasonic biomedical imaging employ delay-and-sum
(DAS) beamforming which can resolve two objects down to 2.1 λ within the acoustic Fresnel …

[HTML][HTML] Flexible ultrasonic array for breast-cancer diagnosis based on a self-shape–estimation algorithm

J Chang, Z Chen, Y Huang, Y Li, X Zeng, C Lu - Ultrasonics, 2020 - Elsevier
Breast cancer is a very common malignant tumour that typically occurs in women aged 35–
70 years (accounting for 85% of patients). Recently, it has been appearing in younger …

High-resolution ultrasound imaging with unified pixel-based beamforming

NQ Nguyen, RW Prager - IEEE transactions on medical …, 2015 - ieeexplore.ieee.org
This paper describes the development and evaluation of a new beamforming strategy based
on pixel-based focusing for ultrasound linear array systems. We first implement conventional …

Generating and monitoring mild hyperthermia using a ring array ultrasound transducer

D Bustamante, Y Yan, T Mitcham, R Ali… - International Journal …, 2024 - Taylor & Francis
Objective To demonstrate the feasibility of using a ring array ultrasound (US) transducer,
guided by ultrasound tomography (UST), for generating and monitoring mild hyperthermia …

Elevational synthetic aperture focusing for three-dimensional photoacoustic imaging using a clinical one-dimensional array transducer

C Yoon, J Kang, T Song… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Objective: Two-dimensional (2D) photoacoustic (PA) imaging based on array transducers
provide high spatial resolution in the lateral direction by adopting receive dynamic focusing …

Evaluation of new ultrasound techniques for clinical imaging in selected liver and vascular applications

AH Brandt, MB Nielsen, JA Jensen, KL Hansen… - 2017 - orbit.dtu.dk
This Ph. D. project is based on a longstanding collaboration between physicists and
engineers from the Center of Fast Ultrasound Imaging (CFU) at the Technical University of …

Design and Implementation of Analog-Digital Hybrid Beamformers for Low-Complexity Ultrasound Systems: A Feasibility Study

H Yoon, J Kim, K Lee, TK Song - Bioengineering, 2023 - mdpi.com
Low-complexity ultrasound systems are increasingly desired for both wearable, point-of-care
ultrasound and high-end massive-channel ultrasound for 3-D matrix imaging. However, the …

Pixel-based approach to delay multiply and sum beamforming in combination with wiener filter for improving ultrasound image quality

H Guo, HW **e, GQ Zhou, NQ Nguyen, RW Prager - Ultrasonics, 2023 - Elsevier
Unified pixel-based (PB) beamforming has been implemented for ultrasound imaging,
offering significant enhancements in lateral resolution compared to the conventional …

Effectiveness of synthetic aperture focusing and coherence factor weighting for intravascular ultrasound imaging

S Kang, J Lee, JH Chang - Ultrasonics, 2021 - Elsevier
Synthetic aperture focusing (SAF) and coherence factor weighting (CFW) have been used to
improve the lateral resolution of ultrasound images. Although the two methods are effective …

A novel design framework of synthetic radial aperture focusing for volumetric transrectal ultrasound imaging

H Song, J Kang, EM Boctor - Journal of Computational Design …, 2022 - academic.oup.com
In this paper, we present a novel design framework of synthetic radial aperture focusing for
three-dimensional (3D) transrectal ultrasound imaging (TRUS-rSAF), in which multiple …