Results 11 to 20 of about 5,143,841 (243)

χ-sepnet: Deep Neural Network for Magnetic Susceptibility Source Separation. [PDF]

Hum Brain Mapp
ABSTRACT Magnetic susceptibility source separation ( χ ‐separation), an advanced quantitative susceptibility mapping (QSM) method, enables the separate estimation of paramagnetic and diamagnetic susceptibility source distributions in the brain.
Kim M, Ji S, Kim J, Min K, Jeong H, Youn J, Kim T, Jang J, Bilgic B, Shin HG, Lee J.   +10 more
europepmc   +11 more sources

So You Want to Image Myelin Using MRI: Magnetic Susceptibility Source Separation for Myelin Imaging. [PDF]

Magn Reson Med Sci
Can now be found in Magnetic Resonance in Medical Sciences https://doi.org/10.2463/mrms.rev.2024 ...
Lee J, Ji S, Oh SH.
europepmc   +7 more sources

Alterations in brain iron and myelination in children with ASD: A susceptibility source separation imaging study

NeuroImage
Autism spectrum disorder (ASD) may have both brain iron and myelin changes, but traditional methods fail to differentiate them. This study utilized an advanced susceptibility source separation technique, APART-QSM (iterAtive magnetic suscePtibility ...
Xiang Zhou, Ya‑Yin Deng, Long Qian, Shuang‑Shuang Zhong, Feng‑Yun Zou, Li‑Shan Shen, Xiao‑Wen Luo, Bo-Ya Yin, Yi-Fan He, Ruo‑Mi Guo   +9 more
doaj   +4 more sources

PI-uMSS: Prior information-based unsupervised magnetic source separation in quantitative susceptibility mapping

NeuroImage
Magnetic source separation (MSS) in quantitative susceptibility mapping (QSM) provides a powerful tool to disentangle paramagnetic and diamagnetic contributions, enabling more accurate quantification of brain iron and myelin alterations.
Junjie He, Bangkang Fu, Cen Pan, Lisha Nie, Rui Xu, Zi Xu, Rongpin Wang   +6 more
doaj   +6 more sources

Repeatability of Susceptibility Source Separation Methods in Human Brain: A Single-Site Study at 3 T. [PDF]

NMR Biomed
ABSTRACT Susceptibility source separation offers new subvoxel insights into iron and myelin distribution in the human brain, overcoming a known limitation of conventional quantitative susceptibility mapping (QSM), which is sensitive only to the net effect of the iron and myelin mixture.
Naji N, Seres P, Moran G, Beaulieu C, Wilman AH.   +4 more
europepmc   +4 more sources

Tract-based χ-separation imaging differentiates multiple sclerosis from neuromyelitis optica spectrum disorder by mapping iron and myelin signatures [PDF]

BMC Medical Imaging
Background Multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD) frequently present with overlapping clinical and radiological features, complicating differential diagnosis.
Shaolong Wu, Yan Xie, Yan Zhang, Su Yan, Hongquan Zhu, Bingfang Duan, Alexey V. Dimov, Wenzhen Zhu, Yi Wang   +8 more
doaj   +2 more sources

Evidence of Iron Accumulation in Cerebral Adrenoleukodystrophy: A Potential Novel Disease Mechanism [PDF]

Annals of Clinical and Translational Neurology
In this first application of Quantitative Susceptibility Mapping Source Separation to cerebral adrenoleukodystrophy, we uncovered alterations in iron and myelin within lesions and normal appearing white matter. As validation, we demonstrate abnormal iron
Christina L. Nemeth, Mert Sisman, Jinwei Zhang, Hyeong‐geol Shin, Xu Li, Bela Turk, Ali Fatemi, Thanh Nguyen, Eric Mallack   +8 more
doaj   +2 more sources

A physics-constrained Bayesian framework for QSM with uncertainty quantification and variational susceptibility source separation

Physics in Medicine & Biology
Abstract Objective . Quantitative susceptibility mapping (QSM) requires inversion of a convolutional dipole operator whose null-space renders susceptibility reconstruction severely ill-posed, making the estimated susceptibility highly sensitive to measurement noise and modeling errors. Existing
K A Shahriar, Maruf Ahmed
openaire   +3 more sources

A multi-dimensional approach combining HPLC, ion mobility and high resolution mass spectrometry for investigating transition metal complexes [PDF]

Scientific Reports
Organometallic complexes play a central role in catalysis and medicinal chemistry, yet their analytical characterization via mass spectrometry remains challenging due to their reactivity, susceptibility to fragmentation and the resulting overlapping ...
Laura Zellner, Julian Süß, Samuel Vorbach, Uwe Monkowius, Markus Himmelsbach, Stephan Hann, Christian W. Klampfl   +6 more
doaj   +2 more sources

Importance of R₂ accuracy in susceptibility source separation. [PDF]

Magn Reson Med
Abstract Purpose To examine the importance of R 2 accuracy on independent paramagnetic and diamagnetic outputs from susceptibility source separation in the brain from two publicly available methods.
Oliveira Assunção TB, Naji N, Snyder J, Seres P, Blevins G, Smyth P, Wilman AH.   +6 more
europepmc   +4 more sources