Results 11 to 20 of about 226,708 (241)

Quantitative Susceptibility Mapping after Sports-Related Concussion [PDF]

American Journal of Neuroradiology, 2018
Quantitative susceptibility mapping using MR imaging can assess changes in brain tissue structure and composition. This report presents preliminary results demonstrating changes in tissue magnetic susceptibility after sports-related concussion.Longitudinal quantitative susceptibility mapping metrics were produced from imaging data acquired from cohorts
K.M. Koch, T.B. Meier, R. Karr, A.S. Nencka, L.T. Muftuler, M. McCrea   +5 more
openaire   +3 more sources

7T MRI quantitative susceptibility mapping for magnetic resonance-guided focused ultrasound thalamotomy: methodology and anatomo-clinical correlations in a retrospective pilot study. [PDF]

Quant Imaging Med Surg
Botta D, Ndengera M, Momjian S, Velarde M, Jorge J, Delattre BMA, Guillemin PC, Bratanov C, Lingenberg A, Constanthin PE, Lorton O, Stadelmann JV, Courvoisier S, Lovblad KO, Schaller K, Gallay MN, Kurz FT, Fleury V, Salomir R.   +18 more
europepmc   +2 more sources

Feasibility of ultrashort echo time quantitative susceptibility mapping with a 3D cones trajectory in the human brain

Frontiers in Neuroscience, 2022
PurposeQuantitative susceptibility mapping (QSM) has surfaced as a promising non-invasive quantitative biomarker that provides information about tissue composition and microenvironment.
Hyungseok Jang, Sam Sedaghat, Jiyo S. Athertya, Dina Moazamian, Michael Carl, Yajun Ma, Xing Lu, Alicia Ji, Eric Y. Chang, Eric Y. Chang, Jiang Du, Jiang Du, Jiang Du   +12 more
doaj   +1 more source

Brain pathological changes during neurodegenerative diseases and their identification methods: How does QSM perform in detecting this process?

Insights into Imaging, 2022
The presence of iron is essential for many biological processes in the body. But sometimes, for various reasons, the amount of iron deposition in different areas of the brain increases, which leads to problems related to the nervous system.
Farzaneh Nikparast, Zohreh Ganji, Mohammad Danesh Doust, Reyhane Faraji, Hoda Zare   +4 more
doaj   +1 more source

APART-QSM: An improved sub-voxel quantitative susceptibility mapping for susceptibility source separation using an iterative data fitting method

NeuroImage, 2023
The brain tissue phase contrast in MRI sequences reflects the spatial distributions of multiple substances, such as iron, myelin, calcium, and proteins. These substances with paramagnetic and diamagnetic susceptibilities often colocalize in one voxel in ...
Zhenghao Li, Ruimin Feng, Qiangqiang Liu, Jie Feng, Guoyan Lao, Ming Zhang, Jun Li, Yuyao Zhang, Hongjiang Wei   +8 more
doaj   +1 more source

Complementing canonical fMRI with functional Quantitative Susceptibility Mapping (fQSM) in modern neuroimaging research

NeuroImage, 2021
Functional Quantitative Susceptibility Mapping (fQSM) allows for the quantitative measurement of time-varying magnetic susceptibility across cortical and subcortical brain structures with a potentially higher spatial specificity than conventional fMRI ...
Marta Lancione, Mauro Costagli, Giacomo Handjaras, Michela Tosetti, Emiliano Ricciardi, Pietro Pietrini, Luca Cecchetti   +6 more
doaj   +1 more source

MoDL-QSM: Model-based deep learning for quantitative susceptibility mapping

NeuroImage, 2021
Quantitative susceptibility mapping (QSM) has demonstrated great potential in quantifying tissue susceptibility in various brain diseases. However, the intrinsic ill-posed inverse problem relating the tissue phase to the underlying susceptibility ...
Ruimin Feng, Jiayi Zhao, He Wang, Baofeng Yang, Jie Feng, Yuting Shi, Ming Zhang, Chunlei Liu, Yuyao Zhang, Jie Zhuang, Hongjiang Wei   +10 more
doaj   +1 more source

Rapid automated liver quantitative susceptibility mapping [PDF]

Journal of Magnetic Resonance Imaging, 2019
BackgroundAccurate measurement of the liver iron concentration (LIC) is needed to guide iron‐chelating therapy for patients with transfusional iron overload. In this work, we investigate the feasibility of automated quantitative susceptibility mapping (QSM) to measure the LIC.PurposeTo develop a rapid, robust, and automated liver QSM for clinical ...
Ramin Jafari, Sujit Sheth, Pascal Spincemaille, Thanh D. Nguyen, Martin R. Prince, Yan Wen, Yihao Guo, Kofi Deh, Zhe Liu, Daniel Margolis, Gary M. Brittenham, Andrea S. Kierans, Yi Wang   +12 more
openaire   +2 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

Ex-vivo quantitative susceptibility mapping of human brain hemispheres. [PDF]

PLoS ONE, 2017
Ex-vivo brain quantitative susceptibility mapping (QSM) allows investigation of brain characteristics at essentially the same point in time as histopathologic examination, and therefore has the potential to become an important tool for determining the ...
Arnold M Evia, Aikaterini Kotrotsou, Ashish A Tamhane, Robert J Dawe, Alifiya Kapasi, Sue E Leurgans, Julie A Schneider, David A Bennett, Konstantinos Arfanakis   +8 more
doaj   +1 more source