Results 41 to 50 of about 2,067,675 (306)

Diagnosis of recurrent cholesteatoma using diffusion weighted MRI

The Egyptian Journal of Radiology and Nuclear Medicine, 2015
Objective: To assess the role of diffusion weighted images (DWI) MRI in differentiating post mastoidectomy recurrent cholesteatoma from infected postoperative granulation tissue. Materials and methods: 13 patients who performed mastoidectomy for previous
Ahmed Fathy Abdel Ghany
doaj   +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  

RNA Sequencing Resolves Cryptic Pathogenic Variants in Mitochondrial Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Mitochondrial diseases are the most common inherited metabolic disorders, characterized by pronounced clinical and genetic heterogeneity that complicates molecular diagnosis. Although DNA‐based sequencing approaches have become standard in genetic testing, up to half of patients remain without a definitive diagnosis.
Zhimei Liu, Xin Duan, Fatemeh Peymani, Jia Wang, Chengjia Bao, Chaolong Xu, Ying Zou, Zixuan Zhang, Yunxi Zhang, Tongyue Li, Martin Pavlov, Junling Wang, Minhan Song, Tianyu Song, Xiaodi Han, Mingxi Sun, Danmin Shen, Ruoyu Duan, Huafang Jiang, Manting Xu, Holger Prokisch, Fang Fang   +21 more
wiley   +1 more source

Diagnostic accuracy of diffusion weighted MRI in cervical lymphadenopathy cases correlated with pathology results

The Egyptian Journal of Radiology and Nuclear Medicine, 2014
Introduction: Diffusion weighted magnetic resonance imaging (DW MRI) is an imaging technique showing molecular diffusion. Cell size, density and integrity influence the signal intensity seen on diffusion-weighted images.
Noha Abd ElShafy ElSaid, Omnia Mokhtar Mohamed Nada, Yomna Sameh Habib, Ahmed Reda Semeisem, Nagat Mansour Khalifa   +4 more
doaj   +1 more source

Fiber tracking in q-ball fields using regularized particle trajectories [PDF]

, 2005
Most of the approaches dedicated to fiber tracking from diffusion-weighted MR data rely on a tensor model. However, the tensor model can only resolve a single fiber orientation within each imaging voxel.
Le Bihan, D, Cointepas, Y., Golestani, N, Constantinesco, A, D. Rivière, Cointepas, Y, A. Constantinesco, Poupon, C., C. Pallier, J. -F. Mangin, Y. Cointepas, Perrin, M, Riviere, D, Constantinesco, A., Perrin, M., D. Le Bihan, M. Perrin, Rieul, B, Golestani, N., Pallier, C., Rieul, B., Mangin, J. F., B. Rieul, Le Bihan, D., C. Poupon, N. Golestani, Mangin, JF, Rivière, D., Pallier, C, Poupon, C   +29 more
core   +1 more source

White Matter Hyperintensity Burden and Short‐Interval Change Associated With Sleep Apnoea in the UK Biobank

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Purpose White matter hyperintensities (WMH) are a core neuroimaging marker of cerebral small vessel disease (CSVD). Sleep apnoea (SA) is a recognized vascular risk factor, but its associations with regional WMH burden, short‐interval WMH change and cognitive performance in population‐based cohorts remain incompletely defined. We
Peng Cheng, Diego Z. Carvalho, Shahid Karim, Anwar Chahal, Virend K. Somers   +4 more
wiley   +1 more source

Magnetic Resonance Imaging of the Neonatal Brain: Modalities, Scoring Systems, and Clinical Applications

Bioengineering
Magnetic resonance imaging (MRI) has become the gold standard for evaluating brain injury and development in newborn infants, providing structural, metabolic, and functional information without ionizing radiation. This review comprehensively examines the
Swathi Ariyapadi, Emily Garavatti, Terrie Inder   +2 more
doaj   +1 more source

Axon radius measurements in vivo from diffusion MRI: A feasibility study [PDF]

, 2007
This paper investigates the feasibility of using diffusion MRI to measure axon-cell dimensions in the white matter of live subjects. A simple geometric model of white-matter tissue provides an expression that relates the axon radius to the diffusion MRI ...
Daniel C. Alexander, Alexander, DC
core   +1 more source

Spin-echo and diffusion-weighted MRI in differentiation between progressive massive fibrosis and lung cancer [PDF]

, 2021
PURPOSE We aimed to investigate the value of magnetic resonance imaging (MRI)- based parameters in differentiating between progressive massive fibrosis (PMF) and lung cancer.
Savas, Recep, Serkan Guneyli, Altintas, Susamber Dik, Recep Savas, Tor, Meltem, Meltem Tor, Aygun, Murat Serhat, Emre Altinmakas, Susamber Dik Altintas, Altinmakas, Emre, Hassoy, Hur, Murat Serhat Aygun, Hur Hassoy, Guneyli, Serkan   +13 more
core   +1 more source

Memory and Resting‐State Connectivity in Acute Transient Global Amnesia: A Case–Control fMRI Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Transient global amnesia (TGA) is a striking model of isolated amnesia. While hippocampal lesions are well described, the network‐level mechanisms and the precise neuropsychological profile remain debated. Our objective was thus to characterize functional and neuropsychological correlates of acute TGA and their ...
Elias El Otmani, Emmanuel Barbeau, Béatrice Lemesle, Emilie Milongo‐Rigal, Sophie Fernandez, Sandrine Charpentier, Jean‐François Albucher, Nicolas Raposo, Fabrice Bonneville, Patrice Péran, Jérémie Pariente   +10 more
wiley   +1 more source