Results 21 to 30 of about 4,607 (203)

QSMART: Quantitative susceptibility mapping artifact reduction technique

NeuroImage, 2021
Purpose: Quantitative susceptibility mapping (QSM) is a novel MR technique that allows mapping of tissue susceptibility values from MR phase images. QSM is an ill-conditioned inverse problem, and although several methods have been proposed in the field ...
Negin Yaghmaie, Warda T. Syeda, Chengchuan Wu, Yicheng Zhang, Tracy D. Zhang, Emma L. Burrows, Amy Brodtmann, Bradford A. Moffat, David K. Wright, Rebecca Glarin, Scott Kolbe, Leigh A. Johnston   +11 more
doaj   +1 more source

Learn Less, Infer More: Learning in the Fourier Domain for Quantitative Susceptibility Mapping

Frontiers in Neuroscience, 2022
Quantitative susceptibility mapping (QSM) aims to evaluate the distribution of magnetic susceptibility from magnetic resonance phase measurements by solving the ill-conditioned dipole inversion problem.
Junjie He, Junjie He, Lihui Wang, Ying Cao, Rongpin Wang, Yuemin Zhu   +5 more
doaj   +1 more source

Iron quantification in basal ganglia using quantitative susceptibility mapping in a patient with ALS: a case report and literature review

Frontiers in Neuroscience, 2023
BackgroundQuantitative susceptibility mapping (QSM) is a magnetic resonance imaging (MRI) technique that can measure the magnetic susceptibility of tissues, which can reflect their iron content.
Sadegh Ghaderi, Sadegh Ghaderi, Seyed Amir Hossein Batouli, Sana Mohammadi, Farzad Fatehi   +4 more
doaj   +1 more source

Clinical quantitative susceptibility mapping (QSM): Biometal imaging and its emerging roles in patient care. [PDF]

J Magn Reson Imaging, 2017
Quantitative susceptibility mapping (QSM) has enabled magnetic resonance imaging (MRI) of tissue magnetic susceptibility to advance from simple qualitative detection of hypointense blooming artifacts to precise quantitative measurement of spatial biodistributions. QSM technology may be regarded to be sufficiently developed and validated to warrant wide
Wang Y, Spincemaille P, Liu Z, Dimov A, Deh K, Li J, Zhang Y, Yao Y, Gillen KM, Wilman AH, Gupta A, Tsiouris AJ, Kovanlikaya I, Chiang GC, Weinsaft JW, Tanenbaum L, Chen W, Zhu W, Chang S, Lou M, Kopell BH, Kaplitt MG, Devos D, Hirai T, Huang X, Korogi Y, Shtilbans A, Jahng GH, Pelletier D, Gauthier SA, Pitt D, Bush AI, Brittenham GM, Prince MR.   +33 more
europepmc   +5 more sources

Effects of white matter microstructure on phase and susceptibility maps [PDF]

, 2014
Purpose: To investigate the effects on quantitative susceptibility mapping (QSM) and susceptibility tensor imaging (STI) of the frequency variation produced by the microstructure of white matter (WM).
Bowtell, Richard W., Wharton, Samuel
core   +2 more sources

Multimodal comparisons of QSM and PET in neurodegeneration and aging

NeuroImage, 2023
Quantitative susceptibility mapping (QSM) has been used to study susceptibility changes that may occur based on tissue composition and mineral deposition.
Petrice M. Cogswell, Audrey P. Fan
doaj   +1 more source

Quantitative Susceptibility Mapping in Skull Base Chordoma: In Silico Analysis and In Vivo Application Towards Indirect Hypoxia Assessment. [PDF]

Magn Reson Med
ABSTRACT Purpose To evaluate quantitative susceptibility mapping (QSM) beyond the brain through realistic simulations and to explore preliminary evidence that may be indicative of hypoxia in skull base chordomas (SBC). Methods Each step of the QSM pipeline was optimized within an in silico framework consisting of (i) phase unwrapping, (ii) background ...
Fenech P, Morelli L, Parrella G, Imparato S, Iannalfi A, Lillo S, Orlandi E, Baroni G, Paganelli C.   +8 more
europepmc   +2 more sources

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

Quantitative Susceptibility Mapping (QSM) Algorithms: Mathematical Rationale and Computational Implementations [PDF]

IEEE Transactions on Biomedical Engineering, 2017
Quantitative susceptibility mapping (QSM) solves the magnetic field-to-magnetization (tissue susceptibility) inverse problem under conditions of noisy and incomplete field data acquired using magnetic resonance imaging. Therefore, sophisticated algorithms are necessary to treat the ill-posed nature of the problem and are reviewed here.
Youngwook Kee, Zhe Liu, Liangdong Zhou, Alexey Dimov, Junghun Cho, Ludovic de Rochefort, Jin Keun Seo, Yi Wang   +7 more
openaire   +3 more sources

Quantitative Susceptibility Mapping: Contrast Mechanisms and Clinical Applications. [PDF]

, 2015
Quantitative susceptibility mapping (QSM) is a recently developed MRI technique for quantifying the spatial distribution of magnetic susceptibility within biological tissues.
Cronin, Matthew, Decker, Kyle, Dibb, Russel, Gong, Nan-Jie, Liu, Chunlei, Wei, Hongjiang   +5 more
core   +2 more sources