Results 61 to 70 of about 3,158,026 (291)

White Matter Microstructural Abnormalities in Neonatal Onset Genetic Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Recent evidence indicates that epilepsy is associated with abnormal white matter. If seizures alter white matter, then the impact upon network function, epileptogenesis, and cognition could be pronounced in neonates undergoing rapid developmental myelination. Neonates with epilepsy due to nonstructural genetic causes provide a unique
Amanda G. Sandoval Karamian, Tianjia Zhu, Hao Huang, Shavonne L. Massey, Mark P. Fitzgerald, Darshana Parikh, Arastoo Vossough, Ingo Helbig, Nicholas S. Abend   +8 more
wiley   +1 more source

Stability effects on results of diffusion tensor imaging analysis by reduction of the number of gradient directions due to motion artifacts: an application to presymptomatic Huntington's disease. [PDF]

, 2011
In diffusion tensor imaging (DTI), an improvement in the signal-to-noise ratio (SNR) of the fractional anisotropy (FA) maps can be obtained when the number of recorded gradient directions (GD) is increased.
Müller, HP, Kassubek, J, Landwehrmeyer, GB, Kloppel, S, Tabrizi, SJ, Süssmuth, SD, Ludolph, A   +6 more
core  

TractoInferno - A large-scale, open-source, multi-site database for machine learning dMRI tractography

Scientific Data, 2022
Measurement(s) Diffusion Weighted Imaging • Magnetic Resonance Imaging of the Brain without Contrast • Diffusion Tensor Imaging Technology Type(s) 3 T MRI scanner Factor Type(s) Age • Gender Sample Characteristic - Organism Homo ...
Philippe Poulin, Guillaume Theaud, Francois Rheault, Etienne St-Onge, Arnaud Bore, Emmanuelle Renauld, Louis de Beaumont, Samuel Guay, Pierre-Marc Jodoin, Maxime Descoteaux   +9 more
doaj   +1 more source

Diabetes‐Associated Cognitive Impairment: Pathophysiology and Emerging Therapies

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Diabetes‐associated cognitive impairment (DACI) is a common yet underrecognized condition, manifesting along a spectrum from mild cognitive impairment to dementia. DACI encompasses patients who develop vascular dementia (VaD) or Alzheimer's disease (AD) with diabetes as a risk factor; however, in certain patients, particularly those lacking ...
Osman Corbali, Priyanka Menon, Halil I. Corbali, Ram Jagannathan, Allan I. Levey   +4 more
wiley   +1 more source

Correcting for Motion between Acquisitions in Diffusion MR Imaging [PDF]

, 2009
The diffusion tensor (DT) and other diffusion models assume that each voxel corresponds to the same anatomical location in all the measurements. Movements and distortions violate this assumption and typically the images are realigned before model ...
Bai, Y
core  

Diffusion Tensor Imaging: Structural adaptive smoothing [PDF]

, 2007
Diffusion Tensor Imaging (DTI) data is characterized by a high noise level. Thus, estimation errors of quantities like anisotropy indices or the main diffusion direction used for fiber tracking are relatively large and may significantly confound the ...
Voss, Henning U., Tabelow, Karsten, Spokoiny, Vladimir, Polzehl, Jörg   +3 more
core   +1 more source

Diffusion tensor MR microscopy of tissues with low diffusional anisotropy

Radiology and Oncology, 2016
Diffusion tensor imaging exploits preferential diffusional motion of water molecules residing within tissue compartments for assessment of tissue structural anisotropy.
Bajd Franci, Mattea Carlos, Stapf Siegfried, Sersa Igor   +3 more
doaj   +1 more source

Diffusion tensor magnetic resonance imaging strategies for color mapping of human brain anatomy

Journal of Medical Signals and Sensors, 2018
Background: A color mapping of fiber tract orientation using diffusion tensor imaging (DTI) can be prominent in clinical practice. The goal of this paper is to perform a comparative study of visualized diffusion anisotropy in the human brain anatomical ...
Saïd Boujraf
doaj   +1 more source

Arterial Spin‐Labeling MRI at the Cortical‐CSF Interface: A Novel Biomarker in Alzheimer Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background/Objective Arterial spin‐labeling (ASL) MRI can measure perfusion signal adjacent to CSF spaces and may provide information regarding CSF‐adjacent water transport physiology. We developed an automated pipeline to extract cortical‐CSF interface (IF) perfusion for comparison between Alzheimer disease (AD) and cognitively normal ...
Mona Asghariahmadabad, Pouya Metanat, Michael Thomas, Luke W. Bonham, Tyson Lam, Mehmet Kurt, Hong Nguyen, Tara Ellingson, Mauro Zucchelli, Stefano Casagranda, Quin Lu, Andreas M. Rauschecker, Leo Sugrue, Luis E. Savastano, Christopher P. Hess, Kamalini Ranasinghe, S. Andrew Josephson, Bruce L. Miller, Jennifer S. Yokoyama, Gil D. Rabinovici, Peter A. Ljubenkov, Lawren VandeVrede, Kambiz Nael   +22 more
wiley   +1 more source

White matter damage and cognitive impairment after traumatic brain injury [PDF]

, 2010
White matter disruption is an important determinant of cognitive impairment after brain injury, but conventional neuroimaging underestimates its extent.
Powell, Jane Hilary, Leech, R, K. M. Kinnunen, Counsell, Serena Jane; id_orcid, Bonnelle, V., Sharp, D. J., Kinnunen, K. M., Hawkins, Peter Charlie; id_orcid, Patel, Maneesh Chandrakant, Patel, MC, M. C. Patel, Sharp, David James, Greenwood, Richard, D. J. Sharp, Hawkins, PC, Leech, R., Patel, M. C., Powell, Jane H., Greenwood, R, J. H. Powell, Counsell, S. J., Sharp, DJ, P. C. Hawkins, Counsell, SJ, Powell, JH, R. Greenwood, Kinnunen, KM, R. Leech, Bonnelle, Valerie, Leech, Robert, V. Bonnelle, Kinnunen, Kirsi Maria, Hawkins, R. C., S. J. Counsell   +33 more
core   +1 more source