Measurement of three‐dimensional internal dynamic strains in the intervertebral disc of the lumbar spine with mechanical loading and golden‐angle radial sparse …

RG Menon, MVW Zibetti, M Pendola… - Journal of Magnetic …, 2021 - Wiley Online Library
Background Noninvasive measurement of internal dynamic strain can be potentially useful
to characterize spine intervertebral disc (IVD) in the setting of injury or degenerative disease …

Fast data-driven learning of parallel MRI sampling patterns for large scale problems

MVW Zibetti, GT Herman, RR Regatte - Scientific Reports, 2021 - nature.com
In this study, a fast data-driven optimization approach, named bias-accelerated subset
selection (BASS), is proposed for learning efficacious sampling patterns (SPs) with the …

Provable preconditioned plug-and-play approach for compressed sensing MRI reconstruction

T Hong, X Xu, J Hu, JA Fessler - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Model-based methods play a key role in the reconstruction of compressed sensing (CS)
MRI. Finding an effective prior to describe the statistical distribution of the image family of …

Alternating learning approach for variational networks and undersampling pattern in parallel MRI applications

MVW Zibetti, F Knoll, RR Regatte - IEEE transactions on …, 2022 - ieeexplore.ieee.org
This work proposes an alternating learning approach to learn the sampling pattern (SP) and
the parameters of variational networks (VN) in accelerated parallel magnetic resonance …

A guaranteed convergence analysis for the projected fast iterative soft-thresholding algorithm in parallel MRI

X Zhang, H Lu, D Guo, L Bao, F Huang, Q Xu… - Medical Image Analysis, 2021 - Elsevier
Sparse sampling and parallel imaging techniques are two effective approaches to alleviate
the lengthy magnetic resonance imaging (MRI) data acquisition problem. Promising data …

Automatic determination of the regularization weighting for wavelet‐based compressed sensing MRI reconstructions

G Varela‐Mattatall, CA Baron… - Magnetic Resonance in …, 2021 - Wiley Online Library
Purpose To present a method that automatically, rapidly, and in a noniterative manner
determines the regularization weighting for wavelet‐based compressed sensing …

Rapid mono and biexponential 3D-T mapping of knee cartilage using variational networks

MVW Zibetti, PM Johnson, A Sharafi, K Hammernik… - Scientific reports, 2020 - nature.com
In this study we use undersampled MRI acquisition methods to obtain accelerated 3D mono
and biexponential spin–lattice relaxation time in the rotating frame (T1ρ) mapping of knee …

Compressed medical imaging based on average sparsity model and reweighted analysis of multiple basis pursuit

T Rahim, L Novamizanti, INA Ramatryana… - … Medical Imaging and …, 2021 - Elsevier
In medical imaging and applications, efficient image sampling and transfer are some of the
key fields of research. The compressed sensing (CS) theory has shown that such …

Superiorization vs. accelerated convex optimization: The superiorized/regularized least-squares case

Y Censor, S Petra, C Schnörr - arXiv preprint arXiv:1911.05498, 2019 - arxiv.org
We conduct a study and comparison of superiorization and optimization approaches for the
reconstruction problem of superiorized/regularized least-squares solutions of …

Accelerated mono‐and biexponential 3D‐T1ρ relaxation mapping of knee cartilage using golden angle radial acquisitions and compressed sensing

MVW Zibetti, A Sharafi, R Otazo… - Magnetic resonance in …, 2020 - Wiley Online Library
Purpose To use golden‐angle radial sampling and compressed sensing (CS) for
accelerating mono‐and biexponential 3D spin‐lattice relaxation time in the rotating frame …