Results 1 to 10 of about 36,720 (307)

Estimation of free water-corrected microscopic fractional anisotropy [PDF]

Frontiers in Neuroscience, 2023
Water diffusion anisotropy MRI is sensitive to microstructural changes in the brain that are hallmarks of various neurological conditions. However, conventional metrics like fractional anisotropy are confounded by neuron fiber orientation dispersion, and
Nico J. J. Arezza, Nico J. J. Arezza, Tales Santini, Tales Santini, Mohammad Omer, Corey A. Baron, Corey A. Baron   +6 more
doaj   +6 more sources

Detecting dopaminergic neuronal degeneration using diffusion tensor imaging in a rotenone-induced rat model of Parkinson's disease: fractional anisotropy and mean diffusivity values

Neural Regeneration Research, 2017
Dopamine content in the basal ganglia is strongly associated with the degree of dopaminergic neuron loss in the substantia nigra pars compacta. Symptoms of Parkinson's disease might not arise until more than 50% of the substantia nigra pars compacta is ...
Lan-xiang Liu, Dan Du, Tao Zheng, Yuan Fang, Yan-sheng Chen, Hui-ling Yi, Qing-yuan He, Da-wei Gao, Qing-lei Shi   +8 more
doaj   +2 more sources

An Introduction to Kurtosis Fractional Anisotropy. [PDF]

AJNR Am J Neuroradiol, 2019
Neuroradiology and imaging-based diagnostics in general have a dire need for scan techniques with improved microstructural sensitivity for detection of subtle tissue alterations in early disease phases or for diagnostics of diseases that are currently simply radiologically invisible.
Hansen B.
europepmc   +5 more sources

White matter fractional anisotropy decreases precede hyperintensities in Alzheimer's disease. [PDF]

Cell Rep Med
The associations of β-amyloid (Aβ) and tau deposition with white matter (WM) degeneration in Alzheimer's disease (AD) remain inadequately elucidated. We investigate baseline and longitudinal changes of microstructural fractional anisotropy (FA) and macrostructural white matter hyperintensities (WMHs) and their relationships with Aβ and tau positron ...
Sun P, He Z, Chu E, Fan X, Cai Y, Lan G, Liu L, Shi D, Liang L, Yang J, Li A, Zhu Y, Zhou X, Fang L, Wang Y, Zhang L, Liu Z, Ma T, Alzheimer’s Disease Neuroimaging Initiative, Cheng G, Xu L, Guo T.   +21 more
europepmc   +3 more sources

Microscopic Fractional Anisotropy Detects Cognitive Training-Induced Microstructural Brain Changes. [PDF]

Tomography, 2022
Cognitive training-induced neuroplastic brain changes have been reported. This prospective study evaluated whether microscopic fractional anisotropy (μFA) derived from double diffusion encoding (DDE) MRI could detect brain changes following a 4 week cognitive training.
Li X, Sawamura D, Hamaguchi H, Urushibata Y, Feiweier T, Ogawa K, Tha KK.   +6 more
europepmc   +6 more sources

Sciatic nerve fractional anisotropy and neurofilament light chain protein are related to sensorimotor deficit of the upper and lower limbs in patients with type 2 diabetes. [PDF]

Front Endocrinol (Lausanne), 2023
Kender Z, Jende JME, Kurz FT, Tsilingiris D, Schimpfle L, Sulaj A, von Rauchhaupt E, Bartl H, Mooshage C, Göpfert J, Nawroth P, Herzig S, Szendroedi J, Bendszus M, Kopf S.   +14 more
europepmc   +3 more sources

Connectomics modeling of regional networks of white-matter fractional anisotropy to predict the severity of young adult drinking. [PDF]

Quant Imaging Med Surg
Li Y, Li G, Yang L, Yan Y, Zhang N, Gao M, Hao D, Ye-Lin Y, Li CR.   +8 more
europepmc   +2 more sources

Assessment of a Reliable Fractional Anisotropy Cutoff in Tractography of the Corticospinal Tract for Neurosurgical Patients. [PDF]

Brain Sci, 2021
Wende T, Kasper J, Wilhelmy F, Dietel E, Hamerla G, Scherlach C, Meixensberger J, Fehrenbach MK.   +7 more
europepmc   +3 more sources

Correlation Analysis of Acute Psychotic Symptom Domain Severity and Fractional Anisotropy of Brain White Matter Tracts in Schizophrenia. [PDF]

Sovrem Tekhnologii Med
Ushakov VL, Zakharova NV, Bravve LV, Mamedova GS, Kartashov SI, Kostyuk GP.   +5 more
europepmc   +3 more sources

Potential Pitfalls of Using Fractional Anisotropy, Axial Diffusivity, and Radial Diffusivity as Biomarkers of Cerebral White Matter Microstructure. [PDF]

Front Neurosci, 2021
Figley CR, Uddin MN, Wong K, Kornelsen J, Puig J, Figley TD.   +5 more
europepmc   +3 more sources