Results 81 to 90 of about 2,739 (132)

Midbrain and pallidal iron changes identify patients with REM sleep behaviour disorder and Parkinson’s disease

npj Parkinson's Disease
Idiopathic REM sleep behaviour disorder (iRBD) is considered a prodromal form of Parkinson’s Disease (PD), potentially exhibiting similar patterns of neurodegeneration, such as brain iron changes.
Erind Alushaj, Alan Kuurstra, Ravi S. Menon, Hooman Ganjavi, Anisa Morava, Manas Sharma, Alia Kashgari, Jennifer Barr, William Reisman, Ali R. Khan, Penny A. MacDonald   +10 more
doaj   +1 more source

Investigating the effect of masking and background field removal algorithms on the quality of QSM reconstructions using a realistic numerical head phantom

NeuroImage
Background field removal (BFR) is an important step in the Quantitative Susceptibility Mapping (QSM) pipeline, enabling the reconstruction of local susceptibility distributions by removing contributions from sources outside the region of interest (ROI ...
Carlos Milovic, Patrick S. Fuchs, Mathias Lambert, Oriana Arsenov, Oliver C. Kiersnowski, Laxmi Muralidharan, Russell Murdoch, Jannette Nassar, Karin Shmueli   +8 more
doaj   +1 more source

Quantitative Assessment of Deep Gray Matter Susceptibility and Correlation With Cognition in Patients With Liver Cirrhosis

Brain and Behavior
Background and Objectives Accumulation of metals quantified by quantitative susceptibility mapping (QSM) in deep gray matter (DGM) and their impact on cognition have not been studied in patients with liver cirrhosis.
Wenjun Wu, Yu Su, Ziji Qin, Jiamin Kang, Dongqiao Xiang, Dingxi Liu, Chuansheng Zheng, E. Mark Haacke, Lixia Wang   +8 more
doaj   +1 more source

Quantitative susceptibility mapping for susceptibility source separation with adaptive relaxometric constant estimation (QSM-ARCS) from solely gradient-echo data

NeuroImage
To separate the contributions of paramagnetic and diamagnetic sources within a voxel, a magnetic susceptibility source separation method based solely on gradient-echo data has been developed. To measure the opposing susceptibility sources more accurately,
Hirohito Kan, Yuto Uchida, Shohei Kawaguchi, Harumasa Kasai, Akio Hiwatashi, Yoshino Ueki   +5 more
doaj   +1 more source

Nonlinear dipole inversion (NDI) enables robust quantitative susceptibility mapping (QSM). [PDF]

NMR Biomed, 2020
Polak D, Chatnuntawech I, Yoon J, Iyer SS, Milovic C, Lee J, Bachert P, Adalsteinsson E, Setsompop K, Bilgic B.   +9 more
europepmc   +1 more source

Susceptibility and diffusion MRI biomarkers predict development of Parkinsonism in iRBD

npj Parkinson's Disease
Quantitative MRI techniques, including quantitative susceptibility mapping (QSM) and diffusion tensor imaging (DTI), may detect early neurodegenerative changes in ɑ-synucleinopathies, especially within the midbrain.
Zsoka Varga, Jiri Nepozitek, Jan Hlavnicka, Jiri Keller, Abhineet Ojha, Patrizia Pantano, Stanislav Marecek, Karel Sonka, Petr Dusek   +8 more
doaj   +1 more source

Quantitative susceptibility mapping (QSM) evaluation of infantile neuroaxonal dystrophy. [PDF]

BJR Case Rep, 2019
Fujiwara T, Watanabe Y, Tanaka H, Takahashi H, Nabatame S, Yi W, Tomiyama N.   +6 more
europepmc   +1 more source

Detecting early brain susceptibility changes before demyelination in cuprizone mouse model using quantitative susceptibility mapping (QSM). [PDF]

Neuroimage
Han X, Chen J, Liu Z, Liu J, Lin M, Wang N.   +5 more
europepmc   +1 more source

Quantitative susceptibility mapping (QSM) as a means to monitor cerebral hematoma treatment. [PDF]

J Magn Reson Imaging, 2018
Zhang Y, Wei H, Sun Y, Cronin MJ, He N, Xu J, Zhou Y, Liu C.   +7 more
europepmc   +1 more source

In newly diagnosed diabetes, hyperglycemia is associated with increased brain iron deposition, measured by MRI-based Quantitative Susceptibility Mapping (QSM). [PDF]

J Adv Res
Pirozzi MA, Esposito F, Trojsi F, Passaniti C, Di Meo I, Auriemma MC, Chianese A, Cerasuolo M, Paolisso G, Cirillo M, Rizzo MR.   +10 more
europepmc   +1 more source