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Technical Improvements in Quantitative Susceptibility Mapping [PDF]
, 2014 Quantitative susceptibility mapping (QSM) is a promising technique to study tissue properties and function in vivo. The presence of a susceptibility source will lead to a non-local field variation which manifests as a non-local behavior in magnetic ...
Liu, Saifeng
core +3 more sources
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 +11 more
doaj +5 more sources
Fast quantitative susceptibility mapping with L1‐regularization and automatic parameter selection [PDF]
, 2013 Purpose To enable fast reconstruction of quantitative susceptibility maps with total variation penalty and automatic regularization parameter selection.
Berkin Bilgiç +7 more
openalex +4 more sources
Neuroimaging of Parkinson's disease by quantitative susceptibility mapping
NeuroImageParkinson'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 +4 more sources
Learned Proximal Networks for Quantitative Susceptibility Mapping
, 2020 11 ...
Kuo-Wei Lai +4 more
openalex +6 more sources
Automated adaptive preconditioner for quantitative susceptibility mapping [PDF]
Magnetic Resonance in Medicine, 2019 PurposeTo develop an automated adaptive preconditioner for QSM reconstruction with improved susceptibility quantification accuracy and increased image quality.Theory and MethodsThe total field was used to rapidly produce an approximate susceptibility map, which was then averaged and trended over binning to generate a spatially varying distribution ...
Zhe Liu +6 more
openalex +4 more sources
Thin slab quantitative susceptibility mapping
Magnetic Resonance in Medicine, 2023 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
Susceptibility-weighted imaging and quantitative susceptibility mapping in the brain [PDF]
Journal of Magnetic Resonance Imaging, 2014 Susceptibility-weighted imaging (SWI) is a magnetic resonance imaging (MRI) technique that enhances image contrast by using the susceptibility differences between tissues. It is created by combining both magnitude and phase in the gradient echo data. SWI is sensitive to both paramagnetic and diamagnetic substances which generate different phase shift ...
Liu, Chunlei +4 more
openaire +5 more sources
Quantitative Susceptibility Mapping in Multiple Sclerosis [PDF]
Radiology, 2013 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.
Margit Jehna +8 more
openaire +2 more sources
Feasibility of quantitative susceptibility mapping (QSM) of the human kidney [PDF]
Magnetic Resonance Materials in Physics, Biology and Medicine, 2020 Abstract Objective To evaluate the feasibility of in-vivo quantitative susceptibility mapping (QSM) of the human kidney. Methods An axial single-breath-hold 3D multi-echo sequence (acquisition time 33 s) was completed on a 3 T-MRI-scanner (Magnetom Prisma, Siemens ...
Eric Bechler +7 more
openalex +4 more sources