Results 1 to 10 of about 206,373 (329)

Iron deposition in Parkinson’s disease by quantitative susceptibility mapping [PDF]

open access: goldBMC Neuroscience, 2019
Background Patients with Parkinson’s disease (PD) have elevated levels of brain iron, especially in the nigrostriatal dopaminergic system. The purpose of this study was to evaluate the iron deposition in the substantia nigra (SN) and other deep gray ...
Qiqi Chen   +7 more
doaj   +5 more sources

Quantitative Susceptibility Mapping in Parkinson's Disease.

open access: yesPLoS ONE, 2016
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

Temporal Shift When Comparing Contrast-Agent Concentration Curves Estimated Using Quantitative Susceptibility Mapping (QSM) and ΔR2*: The Association Between Vortex Parameters and Oxygen Extraction Fraction [PDF]

open access: yesTomography
Background: When plotting data points corresponding to the contrast-agent-induced change in transverse relaxation rate from a dynamic gradient-echo (GRE) magnetic resonance imaging (MRI) study versus a corresponding spin-echo study, a loop or vortex ...
Ronnie Wirestam   +3 more
doaj   +2 more sources

Correlation between iron deposition and cognitive function in mild to moderate Alzheimer’s disease based on quantitative susceptibility mapping [PDF]

open access: yesFrontiers in Aging Neuroscience
BackgroundAlzheimer’s disease (AD) is a complex neurodegenerative disorder characterized by progressively worsening cognitive decline and memory loss. Excessive iron accumulation produces severe cognitive impairment.
Yuqi Zhi   +9 more
doaj   +2 more sources

Characterization of quantitative susceptibility mapping in the left ventricular myocardium [PDF]

open access: yesJournal of Cardiovascular Magnetic Resonance
: Background: Myocardial quantitative susceptibility mapping (QSM) may offer better specificity to iron than conventional T2* imaging in the assessment of cardiac diseases, including intra-myocardial hemorrhage.
Andrew Tyler   +7 more
doaj   +2 more sources

Editorial: Quantitative susceptibility mapping: technical advances and clinical applications [PDF]

open access: yesFrontiers in Neuroscience, 2023
Hongjiang Wei   +3 more
doaj   +2 more sources

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

open access: yesFrontiers 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   +12 more
doaj   +1 more source

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

open access: yesInsights 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   +4 more
doaj   +1 more source

Assessing white matter microstructural changes in idiopathic normal pressure hydrocephalus using voxel-based R2* relaxometry analysis

open access: yesFrontiers in Neurology, 2023
BackgroundR2* relaxometry and quantitative susceptibility mapping can be combined to distinguish between microstructural changes and iron deposition in white matter.
Yuya Kano   +11 more
doaj   +1 more source

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

open access: yesPLoS 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   +8 more
doaj   +1 more source

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