Results 151 to 160 of about 3,891 (187)
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Thin slab susceptibility mapping (QSM)
2023A pair of high- and low-resolution ...
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The monotonic Quartic Spline Method (QSM) for conservative transport problems
Journal of Computational Physics, 2010zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mohamed Zerroukat +2 more
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Automated QSM Processing in Multiple Sclerosis
ISMRM Annual MeetingIn this work, an automated and scalable processing tool for Quantitative Susceptibility Mapping (QSM), QSMxT, is applied to a large dataset of 3D echo-planar imaging (3D-EPI) acquisitions of Multiple Sclerosis (MS) patients and volunteer controls. This is used to reconstruct QSMs for all subjects and generate a group space for the study. MS lesions are
Ashley Stewart +4 more
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Quality Sequencing Minimum - QSM
2018Supporting Material for The Quality Sequencing Minimum (QSM): providing comprehensive, consistent, transparent next generation sequencing data quality ...
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Computationally efficient multi-echo QSM
ISMRM Annual MeetingWith increasingly popular multi-echo QSM, the combination of echoes becomes important in terms of accuracy, SNR and computation time. We compared 6 different pipelines with quantitative and Laplacian unwrapping and three different echo combination approaches, weighted averaging of QSMs, combination of the phase, and non-linear fitting.
Eckstein, Korbinian +5 more
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Use of quantitative susceptibility mapping (QSM) in progressive multifocal leukoencephalopathy
Journal of Neuroradiology, 2016Progressive multifocal leukoencephalopathy (PML) is an opportunistic demyelinating encephalopathy related to JC virus. Its characteristics on conventional brain MRI are well known and are important for the diagnosis.To analyze SWI hypointensities recently described in U-fibers and cortex adjacent to the white matter lesions of PML.Prospective study ...
C, Carra-Dalliere +7 more
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Characterization of Cardiac Quantitative Susceptibility Mapping (QSM)
ISMRM Annual MeetingCardiac Quantitative Susceptibility Mapping (QSM) is a promising technique for the evaluation of iron levels in the myocardium, particularly after a hemorrhagic infarction. In this abstract, we validate the accuracy of our QSM acquisition and reconstruction procedure in phantom experiments, and characterize its precision and repeatability in the ...
Andrew Tyler +5 more
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A quantum similarity matrix (QSM) Aufbau procedure
Journal of Mathematical Chemistry, 2007An Aufbau recursive algorithm, leading to the construction of molecular Quantum similarity matrices (QSM) with positive definite structure is described. As a consequence, Molecular Quantum Similarity measures optimization has to be restricted by a recursive constraint, related to the Euclidian norm of the QSM column elements in Quantum Object density ...
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Practical Considerations for DECOMPOSE-QSM in the Human Brain
ISMRM Annual MeetingMotivation: DECOMPOSE-QSM is a susceptibility source separation method that has the potential for many clinical applications. However, its sensitivity to input QSM acquisition parameters and reconstruction method, and its repeatability are unknown. Goal(s): To investigate the performance and repeatability of DECOMPOSE-QSM with QSM calculated using ...
Patrick Fuchs +3 more
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