Takoua Kaaouana

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Cerebral microbleeds (CMBs) have emerged as a new imaging marker of small vessel disease. Composed of hemosiderin, CMBs are paramagnetic and can be detected with MRI sequences sensitive to magnetic susceptibility (typically, gradient recalled echo T2* weighted images). Nevertheless, their identification remains challenging on T2* magnitude images because of(More)
INTRODUCTION/PURPOSE In vivo detection of cerebral microbleeds (CMBs) from T2* gradient recalled echo (GRE) magnitude image suffers from low specificity, modest inter-rater reproducibility and is biased by its sensitivity to acquisition parameters. New methods were proposed for improving this identification, but they mostly rely on 3D acquisitions, not(More)
OBJECTIVE: Quantitative susceptibility mapping (QSM) and R2* mapping were compared to discriminate between patients with Parkinson's disease (PD) and controls and assessed the diagnostic accuracy of the two imaging techniques. METHODS: Our institutional review board approved this study. The study population consisted of 21 PD patients and 21 ageand(More)
Brain microbleeds (BMBs) have emerged as a new imaging marker of small vessel diseases and they may play a crucial role in degenerative pathology such as Alzheimer's disease. Composed of hemosiderin, BMBs can be efficiently detected with MRI sequences sensitive to magnetic susceptibility (e.g. gradient recalled echo T2*W images). Nevertheless, that(More)
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