BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20250508T042230EDT-29595kvvI6@132.216.98.100 DTSTAMP:20250508T082230Z DESCRIPTION:La série Feindel Brain and Mind Seminar s’inscrit dans la ligne de pensée du Dr William Feindel (1918-2014)\, directeur du Neuro de 1972 à 1984\, qui consiste à maintenir un lien constant entre pratique clinique et recherche. Les présentations porteront sur les dernières avancées et d écouvertes en neuropsychologie\, en neurosciences cognitives et en neuro-i magerie. \n\nLes scientifiques du Neuro\, ainsi que des collègues et colla borateurs venus du milieu ou du monde entier\, se chargeront des conférenc es. Cette série se veut un forum virtuel pour les chercheurs et les stagia ires en vue de favoriser les échanges interdisciplinaires sur les mécanism es des troubles cérébraux et cognitifs\, leur diagnostic et leur traitemen t. \n\n\nPour assister en personne\, inscrivez-vous ici\n\nPour regarder v ia Vimeo\,\n\n\nLydia Chougar\n\nPost-doctoral fellow\, The Neuro\, ´ó·¢²ÊƱƽ̨ University\n\nHôte: \n\nAbstract: \n\nParkinson’s disease\, the second mo st common neurodegenerative disease after Alzheimer’s disease\, is the mai n cause of Parkinsonism\, which is defined by a combination of resting tre mor\, rigidity\, bradykinesia\, and postural instability. Atypical Parkins onism refers to other rare neurodegenerative disorders characterized by a poorer diagnosis\, including progressive supranuclear palsy (PSP)\, multip le system atrophy (MSA)\, and corticobasal degeneration. Degeneration of t he substantia nigra pars compacta is the pathological hallmark of neurodeg enerative Parkinsonian disorders. These diseases present significant chall enges in terms of early diagnosis\, differentiation\, and understanding of pathophysiology.\n\nNeuroimaging has profoundly changed the landscape of research and clinical management of Parkinsonism over the past twenty-five years. Magnetic resonance imaging (MRI) provides several in vivo quantita tive biomarkers sensitive to different tissue properties that inform about the underlying pathological processes. Regional brain atrophy\, detected using T1-weighted three-dimensional (3D) sequences\, reflects neuronal los s. Diffusion anomalies indicate the presence of microstructural alteration s in the tissues related to neuroinflammation\, while iron-sensitive imagi ng detects iron deposits. Neuromelanin-sensitive MRI serves as a proxy for the degeneration of the substantia nigra. More recently\, positron emissi on tomography (PET) has specifically allowed for the detection of misfolde d protein aggregates\, such as Tau and alpha-synuclein\, observed in these diseases\, giving access to an ante-mortem pathological diagnosis.\n\nIn the first part of my talk\, I will illustrate how neuroimaging biomarkers contribute to a better understanding of the pathophysiology of Parkinson’s disease and how they can be used to provide an early diagnosis\, quantify disease severity and progression\, and monitor treatment effects. The sec ond part will highlight the contribution of neuroimaging to the differenti al diagnosis of Parkinsonian disorders\, with a focus on the recent applic ations of machine learning algorithms trained with MRI features.\n DTSTART:20240916T170000Z DTEND:20240916T180000Z LOCATION:De Grandpre Communications Centre\, Montreal Neurological Institut e\, CA\, QC\, Montreal\, H3A 2B4\, 3801 rue University SUMMARY:Feindel Brain and Mind Seminar Series: Contribution of MRI to the u nderstanding and diagnosis of Parkinsonism URL:/neuro/fr/channels/event/feindel-brain-and-mind-se minar-series-contribution-mri-understanding-and-diagnosis-parkinsonism-359 425 END:VEVENT END:VCALENDAR