Results 11 to 20 of about 72,054 (257)
Quantitative susceptibility mapping in atypical Parkinsonisms
Background and purpose: Differential diagnosis between Parkinson's disease (PD) and Atypical Parkinsonisms, mainly Progressive Supranuclear Palsy (PSP) and Multiple System Atrophy (MSA), remains challenging. The low sensitivity of macroscopic findings at
Sonia Mazzucchi +9 more
doaj +3 more sources
Quantitative Susceptibility Mapping in Parkinson's Disease.
BackgroundQuantitative susceptibility mapping (QSM) and R2* relaxation rate mapping have demonstrated increased iron deposition in the substantia nigra of patients with idiopathic Parkinson's disease (PD).
Christian Langkammer +16 more
doaj +3 more sources
Editorial: Quantitative Susceptibility Mapping in Neurodegeneration [PDF]
Fuhua Yan +3 more
doaj +3 more sources
In vivo quantitative susceptibility mapping (QSM) in Alzheimer's disease. [PDF]
BACKGROUND: This study explores the magnetostatic properties of the Alzheimer's disease brain using a recently proposed, magnetic resonance imaging, postprocessed contrast mechanism.
Julio Acosta-Cabronero +5 more
doaj +8 more sources
Neuroimaging of Parkinson's disease by quantitative susceptibility mapping
Parkinson's disease (PD) is a common neurodegenerative disease, and apart from a few rare genetic causes, its pathogenesis remains largely unclear. Recent scientific interest has been captured by the involvement of iron biochemistry and the disruption of
Xiaojun Guan +5 more
doaj +5 more sources
Thin slab quantitative susceptibility mapping
AbstractPurposeSusceptibility maps reconstructed from thin slabs may suffer underestimation due to background‐field removal imperfections near slab boundaries and the increased difficulty of solving a 3D‐inversion problem with reduced support, particularly in the direction of the main magnetic field.
Nashwan Naji, Alan Wilman
openaire +2 more sources
Functional quantitative susceptibility mapping (fQSM) [PDF]
Blood oxygenation level dependent (BOLD) functional magnetic resonance imaging (fMRI) is a powerful technique, typically based on the statistical analysis of the magnitude component of the complex time-series. Here, we additionally interrogated the phase data of the fMRI time-series and used quantitative susceptibility mapping (QSM) in order to ...
Dávid Z. Balla +6 more
openaire +7 more sources
Introduction to Quantitative Susceptibility Mapping and Susceptibility Weighted Imaging [PDF]
Quantitative Susceptibility Mapping (QSM) and Susceptibility Weighted Imaging (SWI) are MRI techniques that measure and display differences in the magnetization that is induced in tissues, i.e. their magnetic susceptibility, when placed in the strong external magnetic field of an MRI system. SWI produces images in which the contrast is heavily weighted
Pascal P. R. Ruetten +2 more
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Quantitative Susceptibility Mapping in Multiple Sclerosis [PDF]
To apply quantitative susceptibility mapping (QSM) in the basal ganglia of patients with multiple sclerosis (MS) and relate the findings to R2* mapping with regard to the sensitivity for clinical and morphologic measures of disease severity.The local ethics committee approved this study, and all subjects gave written informed consent.
Christian, Langkammer +8 more
openaire +2 more sources
MoDL-QSM: Model-based deep learning for quantitative susceptibility mapping
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 +10 more
doaj +1 more source

