Results 31 to 40 of about 3,874 (185)

Comparison of quantitative susceptibility mapping methods for iron-sensitive susceptibility imaging at 7T: An evaluation in healthy subjects and patients with Huntington's disease

NeuroImage, 2023
Quantitative susceptibility mapping (QSM) is a promising tool for investigating iron dysregulation in neurodegenerative diseases, including Huntington's disease (HD). Many diverse methods have been proposed to generate accurate and robust QSM images.
Jingwen Yao, Melanie A. Morrison, Angela Jakary, Sivakami Avadiappan, Yicheng Chen, Johanna Luitjens, Julia Glueck, Theresa Driscoll, Michael D. Geschwind, Alexandra B. Nelson, Javier E. Villanueva-Meyer, Christopher P. Hess, Janine M. Lupo   +12 more
doaj   +1 more source

The Quality Sequencing Minimum (QSM): providing comprehensive, consistent, transparent next generation sequencing  data quality assurance [version 1; referees: 2 approved, 1 approved with reservations]

Wellcome Open Research, 2018
Next generation sequencing (NGS) is routinely used in clinical genetic testing. Quality management of NGS testing is essential to ensure performance is consistently and rigorously evaluated. Three primary metrics are used in NGS quality evaluation: depth
Shazia Mahamdallie, Elise Ruark, Shawn Yost, Márton Münz, Anthony Renwick, Emma Poyastro-Pearson, Ann Strydom, Sheila Seal, Nazneen Rahman   +8 more
doaj   +1 more source

QSM based NOMA for Multi-User Wireless Communication [PDF]

2019 16th International Symposium on Wireless Communication Systems (ISWCS), 2019
In this study, a quadrature spatial modulation (QSM) based non-orthogonal multiple access (NOMA) for multiuser, named as NOMA-QSM, is proposed. The main idea of NOMA-QSM is to superimpose several constellation symbols to be transmitted simultaneously via some selected antenna indexes by distinguishing power domain.
Siregar Faddli, Latva-aho Matti, Rajatheva Premanand   +2 more
openaire   +2 more sources

Evaluation of iron deposition in brain basal ganglia of patients with Parkinson's disease using quantitative susceptibility mapping

European Journal of Radiology Open, 2019
Aim of the study: Parkinson's disease is associated with iron deposition in the brain. The QSM (quantitative susceptibility mapping) is more sensitive than T2-weighted imaging, T2* and R2.
Vahid Shahmaei, Fariborz Faeghi, Ahmad Mohammadbeigi, Hasan Hashemi, Farzad Ashrafi   +4 more
doaj   +1 more source

Meta-QSM: An Image-Resolution-Arbitrary Network for QSM Reconstruction

, 2019
Quantitative Susceptibility Mapping (QSM) can estimate the underlying tissue magnetic susceptibility and reveal pathology. Current deep-learning-based approaches to solve the QSM inverse problem are restricted on fixed image resolution. They trained a specific model for each image resolution which is inefficient in computing.
Liu, Juan, Koch, Kevin M.
openaire   +2 more sources

Nigral Iron Deposition Is Associated With Levodopa-Induced Dyskinesia in Parkinson’s Disease

Frontiers in Neuroscience, 2021
ObjectiveTo investigate iron deposition in the substantia nigra (SN) of Parkinson’s disease (PD) patients associated with levodopa-induced dyskinesia (LID).MethodsSeventeen PD patients with LID, 17 PD patients without LID, and 16 healthy controls were ...
Tianbin Song, Tianbin Song, Jiping Li, Shanshan Mei, Xiaofei Jia, Hongwei Yang, Hongwei Yang, Yongquan Ye, Jianmin Yuan, Yuqing Zhang, Jie Lu, Jie Lu   +11 more
doaj   +1 more source

Validation of deep-learning accelerated quantitative susceptibility mapping for deep brain nuclei

Frontiers in Neuroscience
PurposeTo test the feasibility and consistency of a deep-learning (DL) accelerated QSM method for deep brain nuclei evaluation.MethodsParticipants were scanned with both parallel imaging (PI)-QSM and DL-QSM methods. The PI- and DL-QSM scans had identical
Ying Zhou, Ying Zhou, Lingyun Liu, Shan Xu, Yongquan Ye, Ruiting Zhang, Minming Zhang, Jianzhong Sun, Peiyu Huang   +8 more
doaj   +1 more source

QSM for VIM localization

, 2021
A set of susceptibility maps for localization of the VIM.
openaire   +2 more sources

In Vivo Quantitative Susceptibility Mapping (QSM) in Alzheimer's Disease

PLoS ONE, 2013
This study explores the magnetostatic properties of the Alzheimer's disease brain using a recently proposed, magnetic resonance imaging, postprocessed contrast mechanism. Quantitative susceptibility mapping (QSM) has the potential to monitor in vivo iron levels by reconstructing magnetic susceptibility sources from field perturbations.
Acosta-Cabronero, Julio, Williams, Guy B., Cardenas-Blanco, Arturo, Arnold, Robert J., Lupson, Victoria, Nestor, Peter J.   +5 more
openaire   +8 more sources

Fusion of quantitative susceptibility maps and T1-weighted images improve brain tissue contrast in primates

NeuroImage, 2022
Recent progress in quantitative susceptibility mapping (QSM) has enabled the accurate delineation of submillimeter-scale subcortical brain structures in humans.
Rakshit Dadarwal, Michael Ortiz-Rios, Susann Boretius   +2 more
doaj   +1 more source