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BACKGROUND AND PURPOSE Brain tumors affecting language-relevant areas may influence language lateralization. The purpose of this study was to systematically investigate language lateralization in brain tumor patients using clinical language fMRI, comparing the results with a group of healthy volunteers. MATERIALS AND METHODS Fifty-seven strictly(More)
Blood oxygenation-level dependent (BOLD) MRI has gained particular attention in functional brain imaging studies, where it can be used to localize areas of brain activation with high temporal resolution. To a higher degree than in the brain, skeletal muscles show extensive but transient alterations of blood flow between resting and activation state. Thus,(More)
INTRODUCTION Muscle symptoms in systemic sclerosis (SSc) may originate from altered skeletal muscle microcirculation, which can be investigated by means of blood oxygenation level dependent (BOLD) magnetic resonance imaging (MRI). METHODS After ethics committee approval and written consent, 11 consecutive SSc patients (5 men, mean age 52.6 years, mean SSc(More)
PURPOSE To evaluate the dependence of skeletal muscle blood oxygenation level-dependent (BOLD) effect and time course characteristics on magnetic field strength in healthy volunteers using an ischemia/reactive hyperemia paradigm. MATERIALS AND METHODS Two consecutive skeletal muscle BOLD magnetic resonance imaging (MRI) measurements in eight healthy(More)
UNLABELLED The aim of this study was to analyze quantitatively the phenomenology and mechanisms of motor blockade induced by retrobulbar anesthesia (RETRO). PATIENTS AND METHODS Prior to cataract surgery, 34 patients received RETRO using the intraconal technique of Atkinson. Four milliliters of mepivacaine 2% (Scandicain), prilocaine 2% (Xylonest) or(More)
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