Diffusion weighted image denoising using overcomplete local PCA

JV Manjón, P Coupé, L Concha, A Buades, DL Collins… - PloS one, 2013 - journals.plos.org
Diffusion Weighted Images (DWI) normally shows a low Signal to Noise Ratio (SNR) due to
the presence of noise from the measurement process that complicates and biases the …

Denoising diffusion‐weighted magnitude MR images using rank and edge constraints

F Lam, SD Babacan, JP Haldar… - Magnetic resonance …, 2014 - Wiley Online Library
Purpose To improve signal‐to‐noise ratio for diffusion‐weighted magnetic resonance
images. Methods A new method is proposed for denoising diffusion‐weighted magnitude …

Restoration of DWI data using a Rician LMMSE estimator

S Aja-Fernández, M Niethammer… - IEEE transactions on …, 2008 - ieeexplore.ieee.org
This paper introduces and analyzes a linear minimum mean square error (LMMSE)
estimator using a Rician noise model and its recursive version (RLMMSE) for the restoration …

Feature-preserving MRI denoising: a nonparametric empirical Bayes approach

SP Awate, RT Whitaker - IEEE Transactions on Medical Imaging, 2007 - ieeexplore.ieee.org
This paper presents a novel method for Bayesian denoising of magnetic resonance (MR)
images that bootstraps itself by inferring the prior, ie, the uncorrupted-image statistics, from …

Non Local Spatial and Angular Matching: Enabling higher spatial resolution diffusion MRI datasets through adaptive denoising

S St-Jean, P Coupé, M Descoteaux - Medical image analysis, 2016 - Elsevier
Diffusion magnetic resonance imaging (MRI) datasets suffer from low Signal-to-Noise Ratio
(SNR), especially at high b-values. Acquiring data at high b-values contains relevant …

DWI filtering using joint information for DTI and HARDI

A Tristán-Vega, S Aja-Fernández - Medical image analysis, 2010 - Elsevier
The filtering of the Diffusion Weighted Images (DWI) prior to the estimation of the diffusion
tensor or other fiber Orientation Distribution Functions (ODF) has been proved to be of …

Rician noise removal by non-local means filtering for low signal-to-noise ratio MRI: applications to DT-MRI

N Wiest-Daesslé, S Prima, P Coupé… - … Conference on Medical …, 2008 - Springer
Abstract Diffusion-Weighted MRI (DW-MRI) is subject to random noise yielding measures
that are different from their real values, and thus biasing the subsequently estimated tensors …

[HTML][HTML] NOise reduction with DIstribution Corrected (NORDIC) PCA in dMRI with complex-valued parameter-free locally low-rank processing

S Moeller, PK Pisharady, S Ramanna, C Lenglet, X Wu… - Neuroimage, 2021 - Elsevier
Diffusion-weighted magnetic resonance imaging (dMRI) has found great utility for a wide
range of neuroscientific and clinical applications. However, high-resolution dMRI, which is …

DDM: Self-Supervised Diffusion MRI Denoising with Generative Diffusion Models

T Xiang, M Yurt, AB Syed, K Setsompop… - arXiv preprint arXiv …, 2023 - arxiv.org
Magnetic resonance imaging (MRI) is a common and life-saving medical imaging technique.
However, acquiring high signal-to-noise ratio MRI scans requires long scan times, resulting …

PreQual: An automated pipeline for integrated preprocessing and quality assurance of diffusion weighted MRI images

LY Cai, Q Yang, CB Hansen, V Nath… - Magnetic resonance …, 2021 - Wiley Online Library
Purpose Diffusion weighted MRI imaging (DWI) is often subject to low signal‐to‐noise ratios
(SNRs) and artifacts. Recent work has produced software tools that can correct individual …