Results 81 to 90 of about 3,926,912 (305)

Structural MRI and Computational Anatomy

Abstract Structural magnetic resonance imaging can yield highly detailed images of the human brain. In order to quantify the variability in shape and size across different brains, methods developed in the field of computational anatomy have proved exceptionally useful.
Felix Hoffstaedter, Georgios Antonopoulos, Christian Gaser   +2 more
openaire   +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

Subclinical Optic Nerve Involvement in Radiologically Isolated Syndrome: Multimodal Detection and Diagnostic Impact

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We aimed to determine the frequency of subclinical optic nerve (ON) lesions using MRI, optical coherence tomography (OCT), and visual evoked potentials (VEP) in radiologically isolated syndrome (RIS), and to assess their diagnostic and prognostic significance.
Christine Lebrun‐Frenay, Cassandre Landes‐Château, Lydiane Mondot, Mikael Cohen, Margherita Popolo, Jérôme de Seze, Bertrand Bourre, Françoise Durand‐Dubief, Olivier Casez, Orhun H. Kantarci, Aksel Siva, Stephanie Baillif, Darin T. Okuda, Letizia Leocani   +13 more
wiley   +1 more source

Diagnostic value of dynamic contrast-enhanced MRI for unilocular cystic-type ameloblastomas with homogeneously bright high signal intensity on T2-weighted or STIR MR images [PDF]

, 2011
Typical MR images of ameloblastomas on T2-weighted image (WI) or short inversion time inversion-recovery (STIR) show multiple bright high-signal-intensity loci on a high-signal-intensity background.
Teruhisa Unetsubo, Yanagi, Yoshinobu, Konouchi, Hironobu, Hisatomi, Miki, Asaumi, Jun-ichi, Unetsubo, Teruhisa, Hironobu Konouchi, Toshihiko Takenobu, Hidenobu Matsuzaki, Yoshinobu Yanagi, Matsuzaki, Hidenobu, Takenobu, Toshihiko, Miki Hisatomi, Jun-ichi Asaumi   +13 more
core   +1 more source

7-Tesla MRI demonstrates absence of structural lesions in patients with vestibular paroxysmia

Frontiers in Neuroanatomy, 2015
Vestibular parxoysmia is rare vestibular disorder. A neurovascular cross-compression between the vestibulochochlear nerve and an artery seems to be responsible for short attacks of vertigo in this entity.
Paulus Stefan Rommer, Gerald eWiest, Claudia eKronnerwetter, Heidemarie eZach, Benjamin eLoader, Kirsten eElwischger, Siegfried eTrattnig   +6 more
doaj   +1 more source

Neurochemical Endpoints to Inform Early‐Stage Trials of Spinocerebellar Ataxia 2 and 3 in a Multisite Setting

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neurochemical levels measured by brain MR spectroscopy (MRS) have been proposed as endpoints for clinical trials in early‐stage spinocerebellar ataxia (SCA) trials. We tested their trial‐readiness by quantifying neurochemicals in three affected brain regions in early‐stage cohorts of SCA2 and SCA3, examining their reproducibility in ...
James M. Joers, Yaqiao Wei, Dinesh K. Deelchand, Adam Berrington, Young Woo Park, Guita Banan, Michal Povazan, Jens T. Rosenberg, André J. W. van der Kouwe, Tetsuo Ashizawa, Khalaf O. Bushara, Chiadi U. Onyike, Sub H. Subramony, Jeremy D. Schmahmann, Brian J. Soher, Peter B. Barker, Thomas H. Mareci, Eva‐Maria Ratai, Lynn E. Eberly, Gülin Öz   +19 more
wiley   +1 more source

Hypoxia-specific MRI contrast agents

, 2018
Introduction: Hypoxia or decreased availability of oxygen in tumours is of significant interest in oncology as it is known to increase radiotherapy and chemotherapy resistance, and promote tumour progression [1, 2]. For better prognosis of solid tumours,
Wijesekera, Nadeeja (S32280), Gupta, Abhishek (R18354), Zaman, Mohammed S., Price, William S. (R10381)   +3 more
core  

Characterizing aging in the human brainstem using quantitative multimodal MRI analysis [PDF]

, 2013
Aging is ubiquitous to the human condition. The MRI correlates of healthy aging have been extensively investigated using a range of modalities, including volumetric MRI, quantitative MRI (qMRI), and diffusion tensor imaging.
Stephen M. Fleming, Stephen M Fleming, Frackowiak, R, John eAshburner, Antoine eLutti, Bogdan eDraganski, Frackowiak, R., Ashburner, J, Rumana Chowdhury, Chowdhury, R., Christian Lambert, Draganski, Bogdan, Fitzgerald, TH, Thomas eFitzgerald, Lambert, C., Hutton, C., Chloe Hutton, Lambert, C, Chowdhury, R, Chowdhury, Rumana, Antoine Lutti, Fleming, Stephen M., Fleming, SM, Chloe eHutton, Lutti, Antoine, John Ashburner, Draganski, B, Ashburner, J., Bogdan Draganski, Fitzgerald, Thomas H. B., Rumana eChowdhury, Hutton, Chloe, Richard Frackowiak, Lambert, Christian, Christian eLambert, Thomas H. B. FitzGerald, Fitzgerald, T.H., Lutti, A, Lutti, A., Ashburner, John, Fleming, S.M., Draganski, B., Richard eFrackowiak, Hutton, C, Frackowiak, Richard   +44 more
core   +1 more source

Application of Artificial Intelligence techniques for the detection of Alzheimer's disease using structural MRI images

, 2021
Alzheimer’s disease (AD) is an irreversible, progressive brain disorder that slowly destroys memory and thinking skills. It is one of the leading types of dementia for persons aged above 65 worldwide.
Ang, Candice Ke En, Acharya, U. Rajendra, Cheong, Kang Hao, Zhao, Xinxing   +3 more
core   +1 more source

DeCGAN: a diversity-enhanced CycleGAN for unpaired image-to-image translation

Scientific Reports
Unpaired image-to-image translation, demonstrated by frameworks like CycleGAN, has shown promise in critical applications, including medical imaging, but is hindered by challenges such as mode collapse and structural degradation.
Matthew Cobbinah, Henry Nunoo-Mensah, Francisca Adoma Acheampong, Isaac Acquah, Eric Tutu Tchao, Andrew Selasi Agbemenu, Julius Adinkrah, Jerry John Kponyo, Emmanuel Abaidoo, Ike Asamoah-Ansah, Obed Kojo Otoo   +10 more
doaj   +1 more source