Clinical Research Directory

Inclusion Criteria: * Age 18 and older (i.e., candidates must have had their 18th birthday) * Puncture carried out within 24 hours of first symptoms * Suitable 1.5T MRI T2 \* Gradient echo that shows a clear susceptibility vessel sign facing the occlusion * Neuroimaging demonstrates large vessel proximal occlusion (distal ICA through MCA bifurcation, M1 or proximal M2) * Patient or trustworthy person informed about the study and having orally consented to participation in the study. If the patient is unable to receive information and no trustworthy person can be contacted during screening for the study, trial inclusion will be completed as an emergency procedure by the investigator, in compliance with the French laws * With or without intravenous thrombolysis Exclusion Criteria: * Absence of large vessel occlusion on non-invasive imaging * Known or suspected pre-existing (chronic) large vessel occlusion in the symptomatic territory * Suspected pregnancy; if, in a woman is of child-bearing potential, a urine or serum beta HCG test is positive * Severe contrast medium allergy or absolute contraindication to use of iodinated products * Clinical history, past imaging or clinical judgment suggests that the intracranial occlusion is chronic * Patient has severe or fatal comorbidities that will likely prevent improvement or follow-up or that will render the procedure unlikely to benefit the patient * Acute ischemic stroke involving posterior circulation (vertebro-basilar occlusion) * Angiographic evidence of carotid dissection or tandem cervical occlusion or stenosis requiring treatment * Pregnant or breast-feeding women * Patient benefiting from a legal protection * Non-membership of a national insurance scheme * Opposition of the patient or (in case of inclusion as a matter of urgency) of the trustworthy person * Patient with modified Rankin score \> 3 before qualifying stroke