4 papers
Lens-Aware Differentiable Beamforming for In Vivo Distributed Aberration Correction with Curvilinear Transducers
Benjamin N. Frey, Robin van Velzen, Hoda S. Hashemi +6
This work extends ultrasound autofocusing via common midpoint phase error optimization to support curvilinear array geometries. Iterative model-based aberration correction via loca…
A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing
Louise Zhuang, Samuel Beuret, Ben Frey +4
In pulse-echo ultrasound, aberration often degrades image quality when beamforming does not account for wavefront distortions. To address this issue, local sound speed estimators h…
Ultrasound Autofocusing: Common Midpoint Phase Error Optimization via Differentiable Beamforming
Walter Simson, Louise Zhuang, Benjamin N. Frey +3
In ultrasound imaging, propagation of an acoustic wavefront through heterogeneous media causes phase aberrations that degrade the coherence of the reflected wavefront, leading to r…
Enhancing Ultrasound Molecular Imaging: Toward Real-Time RPCA-Based Filtering to Differentiate Bound and Free Microbubbles
Hoda S. Hashemi, Dongwoon Hyun, Nathan Nguyen +6
Ultrasound molecular imaging (UMI) is an advanced imaging modality that shows promise in detecting cancer at early stages. It uses microbubbles as contrast agents, which are functi…