نتایج جستجو برای: fluid attenuation inversion recovery
تعداد نتایج: 500322 فیلتر نتایج به سال:
BACKGROUND AND PURPOSE Robust, automated segmentation algorithms are required for quantitative analysis of large imaging datasets. We developed an automated method that identifies and labels brain tumor-associated pathology by using an iterative probabilistic voxel labeling using k-nearest neighbor and Gaussian mixture model classification. Our purpose was to develop a segmentation method which...
BACKGROUND AND PURPOSE A change in acute-to-chronic lesion volume has been proposed as a biomarker for stroke therapies. The objectives of this study were to determine the magnitude of lesion volume change after standard treatment with tissue plasminogen activator and to determine whether specific volume change thresholds can discriminate clinical responders from nonresponders. METHODS We mea...
We report on MR studies of a 15-year-old girl with moyamoya disease in whom diffuse leptomeningeal enhancement ("ivy sign") was revealed by fluid-attenuated inversion-recovery (FLAIR) and contrast-enhanced imaging. We speculate that the mechanism behind this enhancement is caused by a retrograde slow flow of engorged pial vasculature via leptomeningeal anastomosis. Nevertheless, it remains unkn...
fluid properties with constant improvement in efficiency have been noticeable as important criteria in drilling operation. the main drilling fluid properties highly depend on utilization of new polymers with high efficiency in drilling fluid composition. in this paper, the performance of a new polymer, called partially hydrolyzed polyacrylamide polymer (phpa), is studied which has recently ente...
Brazil has experienced a Zika virus (ZIKV) outbreak with increased incidence of congenital malformations and neurological manifestations. We describe a case of a 26-year-old Brazilian Caucasian man infected with ZIKV and diagnosed with encephalomyelitis. Brain and spinal cord images showed hyperintense lesions on T2 and fluid-attenuated inversion recovery (FLAIR), and levels of proinflammatory ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید