Results 51 to 60 of about 2,999,829 (296)

Using support vector machines with multiple indices of diffusion for automated classification of mild cognitive impairment [PDF]

, 2012
Few studies have looked at the potential of using diffusion tensor imaging (DTI) in conjunction with machine learning algorithms in order to automate the classification of healthy older subjects and subjects with mild cognitive impairment (MCI).
Lamberton, Franck, David Prvulovic, O’Neill, Desmond, Desmond O'Neill, Harald Hampel, Prvulovic David, Bartley, M., Prvulovic, D., Coughlan, T., Mazoyer, B., Lamberton, F., Collins, D.R., Bokde, Arun L W, Laurence O'Dwyer, Coughlan Tara, O'Neill, Desmond, Ewers, Michael, Bokde, A.L., O'Neill, D., Ewers, M., Mazoyer Bernard, Franck Lamberton, Collins, D. Rónán, O'Neill Desmond, Arun L W Bokde, Tara Coughlan, Bartley, Máiréad, Bokde Arun L. W., Faluyi, Y.O., Hampel Harald, D Rónán Collins, O'Dwyer Laurence, O'Dwyer, Laurence, Collins, D Rónán, Máiréad Bartley, Tanner, C., Faluyi, Yetunde O., Tanner Colby, Bartley Máiréad, O’Dwyer, Laurence, Bokde, Arun L. W., Lamberton Franck, Faluyi Yetunde O., Mazoyer, Bernard M., Mazoyer, Bernard, Hampel, Harald, Prvulovic, David, Michael Ewers, O'Dwyer, L.G., Faluyi, Yetunde O, Colby Tanner, Collins D. Rónán, Tanner, Colby, Hampel, H., Coughlan, Tara, Ewers Michael, Yetunde O Faluyi, Bernard Mazoyer   +57 more
core   +3 more sources

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

FEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain, Elise Buret, Le Hoang Thanh Nguyen, Marion Cocheteux, Nicolas Touya, Mélanie Dhayer, Romain Dubois, Frank Lafont, Sebastien Janel, Patrice Maboudou, Steve Lancel, Philippe Marchetti   +11 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., 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   +34 more
core   +1 more source

Advancing Age Modulates Associations Between Cognitive Impairment and Brain Volumes in Early MS

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Cognitive impairment is common in multiple sclerosis (MS), but manifestations following the first demyelinating event are relatively unexplored. We investigated cross‐sectional associations between magnetic resonance imaging (MRI)–derived brain volumes and the presence of cognitive impairment outcomes five years after the first ...
Piriyankan Ananthavarathan, Marco Pitteri, Michael Foster, Sara Collorone, Sara Salama, Elisa Colato, Ferran Prados, Baris Kanber, Marios Yiannakas, Claudia A. M. Gandini Wheeler‐Kingshott, Indran Davagnanam, Frederik Barkhof, Declan Chard, Olga Ciccarelli, Ahmed Toosy   +14 more
wiley   +1 more source

Spatial Smoothing for Diffusion Tensor Imaging with low Signal to Noise Ratios [PDF]

, 2003
Though low signal to noise ratio (SNR) experiments in DTI give key information about tracking and anisotropy, e.g. by measurements with very small voxel sizes, due to the complicated impact of thermal noise such experiments are up to now seldom analysed.
Prigarin, Sergej M., Pütz, Benno, Hahn, Klaus R., Prigarin, Sergej, Hahn, Klaus   +4 more
core   +1 more source

Research Progress of Denoising Algorithms for Diffusion Tensor Images

Chinese Journal of Magnetic Resonance
Diffusion tensor imaging is an essential technique to study tissue brain microstructure and the distribution of white matter fiber tracts. However, affected by the diffusion-weighted signal attenuation and long echo time, diffusion tensor images suffer ...
YANG Liming, WANG Yuanjun
doaj   +1 more source

Basal Ganglia Compensatory White Matter Changes on DTI in Alzheimer’s Disease

Cells, 2023
The volume reduction of the gray matter structures in patients with Alzheimer’s disease is often accompanied by an asymmetric increase in the number of white matter fibers located close to these structures. The present study aims to investigate the white
Zdeněk Wurst, Barbora Birčák Kuchtová, Jan Křemen, Anastasiya Lahutsina, Ibrahim Ibrahim, Jaroslav Tintěra, Aleš Bartoš, Marek Brabec, Tanya Rai, Petr Zach, Vladimír Musil, Nicoletta Olympiou, Jana Mrzílková   +12 more
doaj   +1 more source

Acute Kidney Injury After Mechanical Thrombectomy for Stroke in Patients With Pre‐Existing Renal Impairment

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Acute kidney injury (AKI) is a common but often underrecognized complication in ischemic stroke patients undergoing mechanical thrombectomy, particularly among those with pre‐existing renal impairment. This study evaluated the incidence, risk factors, and clinical impact of AKI in this high‐risk population.
Michał Borończyk, Marcel Pilarek, Emilia Jaworska, Natalia Kardas, Oliwia Barnaś, Julia Woźniak, Iga Machała, Julia Węgrzynek‐Gallina, Joanna Siuda, Anna Hawrot‐Kawecka, Anetta Lasek‐Bal   +10 more
wiley   +1 more source

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

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