Deep learning‐based motion quantification from k‐space for fast model‐based magnetic resonance imaging motion correction

J Hossbach, DN Splitthoff, S Cauley, B Clifford… - Medical …, 2023 - Wiley Online Library
Background Intra‐scan rigid‐body motion is a costly and ubiquitous problem in clinical
magnetic resonance imaging (MRI) of the head. Purpose State‐of‐the‐art methods for …

New theory and faster computations for subspace-based sensitivity map estimation in multichannel MRI

RA Lobos, CC Chan, JP Haldar - IEEE Transactions on Medical …, 2023 - ieeexplore.ieee.org
Sensitivity map estimation is important in many multichannel MRI applications. Subspace-
based sensitivity map estimation methods like ESPIRiT are popular and perform well …

Speech production real‐time MRI at 0.55 T

Y Lim, P Kumar, KS Nayak - Magnetic Resonance in Medicine, 2024 - Wiley Online Library
Purpose To demonstrate speech‐production real‐time MRI (RT‐MRI) using a contemporary
0.55 T system, and to identify opportunities for improved performance compared with …

Optimization of 3D dynamic speech MRI: Poisson‐disc undersampling and locally higher‐rank reconstruction through partial separability model with regional …

R Jin, Y Li, RK Shosted, F Xing, I Gilbert… - Magnetic …, 2024 - Wiley Online Library
Purpose To improve the spatiotemporal qualities of images and dynamics of speech MRI
through an improved data sampling and image reconstruction approach. Methods For data …

Self‐supervised learning for improved calibrationless radial MRI with NLINV‐Net

M Blumenthal, C Fantinato… - Magnetic …, 2024 - Wiley Online Library
Purpose To develop a neural network architecture for improved calibrationless
reconstruction of radial data when no ground truth is available for training. Methods NLINV …

Single breath‐hold CINE imaging with combined simultaneous multislice and region‐optimized virtual coils

D Kim, J Coll‐Font, RA Lobos, D Stäb… - Magnetic …, 2023 - Wiley Online Library
Purpose To investigate the feasibility of combining simultaneous multislice (SMS) and
region‐optimized virtual coils (ROVir) for single breath‐hold CINE imaging. Method ROVir is …

Polynomial preconditioners for regularized linear inverse problems

SS Iyer, F Ong, X Cao, C Liao, L Daniel, JI Tamir… - SIAM Journal on Imaging …, 2024 - SIAM
This work aims to accelerate the convergence of proximal gradient methods used to solve
regularized linear inverse problems. This is achieved by designing a polynomial-based …

[HTML][HTML] Deep Learning Initialized Compressed Sensing (Deli-CS) in Volumetric Spatio-Temporal Subspace Reconstruction

SS Iyer, SS Schauman, CM Sandino, M Yurt, X Cao… - bioRxiv, 2023 - ncbi.nlm.nih.gov
Methods: Deep Learning Initialized Compressed Sensing (Deli-CS) is proposed to reduce
the reconstruction time of iterative reconstructions by “kick-starting” the iterative …

Cardiac DTI using short‐axis PROPELLER: A feasibility study

M Sadighi, D Kara, D Mai, K Nguyen… - Magnetic resonance …, 2024 - Wiley Online Library
Purpose We aimed to develop a free‐breathing (FB) cardiac DTI (cDTI) method based on
short‐axis PROPELLER (SAP) and M2 motion compensated spin‐echo EPI (SAP‐M2‐EPI) …

Reducing femoral flow artefacts in radial magnetic resonance fingerprinting of the prostate using region‐optimised virtual coils

KI Sørland, CG Trimble, CY Wu, TF Bathen… - NMR in …, 2024 - Wiley Online Library
High acceleration factors in radial magnetic resonance fingerprinting (MRF) of the prostate
lead to strong streak‐like artefacts from flow in the femoral blood vessels, possibly …