نتایج جستجو برای: fluid attenuation inversion recovery

تعداد نتایج: 500322  

Journal: :Seminars in neurology 2012
Kirk M Welker Alice Patton

White matter myelination is essential to postnatal neurologic maturation and can be accurately evaluated by magnetic resonance imaging (MRI). Accordingly, MRI pulse sequences should be optimized for detection of myelin in young children. T1-weighted images are most useful during the first year of life. These demonstrate myelin-related white matter hyperintensity consequent to increasing cholest...

Journal: :BMJ case reports 2017
Manchikanti Venkatesh Sunitha Vellathussery Chakkalakkoombil Pradeep Pankajakshan Nair Umar Basha Sowkar

palatal myoclonus, tongue fasciculation and ataxic gait. MRI of the brain showed increased T2 and Fluid Attenuation Inversion recovery (FLAIR) signal intensities in the bilateral inferior olivary complex without diffusion restriction (figure 1). Midbrain, pons, and cerebral and cerebellar parenchyma were normal (figure 2). Imaging features were consistent with bilateral hypertrophic olivary deg...

Journal: :Academic radiology 2008
Zhiqiang Lao Dinggang Shen Dengfeng Liu Abbas F Jawad Elias R Melhem Lenore J Launer R Nick Bryan Christos Davatzikos

RATIONALE AND OBJECTIVES Brain lesions, especially white matter lesions (WMLs), are associated with cardiac and vascular disease, but also with normal aging. Quantitative analysis of WML in large clinical trials is becoming more and more important. MATERIALS AND METHODS In this article, we present a computer-assisted WML segmentation method, based on local features extracted from multiparamet...

Journal: :Archives of neurology 2012
Bruce C V Campbell Hans T H Tu Søren Christensen Patricia M Desmond Christopher R Levi Christopher F Bladin Niels Hjort Mahmoud Ashkanian Christine Sølling Geoffrey A Donnan Stephen M Davis Leif Ostergaard Mark W Parsons

BACKGROUND Imaging is used as a surrogate for clinical outcome in early-phase stroke trials. Assessment of infarct growth earlier than the standard 90 days used for clinical end points may be equally accurate and more practical. OBJECTIVE To compare assessment of the effect of reperfusion therapies using 24-hour vs day 90 magnetic resonance imaging. DESIGN Infarct volume was assessed on dif...

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