Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Interventional
Official Title: Évaluation en IRM (séquence ASL) de la Variation de Perfusion cérébrale liée à la Position Corporelle.
Brief Summary: Postural changes are commonly used as therapeutic maneuver to enhance or reduce cerebral perfusion. For instance, in acute stroke, the patient can be positioned in head down tilt position so as to increase perfusion of cerebral tissues perfusion. In During stroke and in hypertensive patients and during stroke, varying degrees a various loss of cerebral autoregulation is loss are usually observed. The aim of this study is to assess cerebral perfusion with ASL perfusion in human subjects in different conditions: healthy, hypertensive and stroke.