Dural Sinus Stenting of Low Grade Dural Arteriovenous Fistulae (DAVF) for Pulsatile Tinnitus Treatment (INVENT)

Inclusion Criteria: Patient presenting invalidating pulsatile tinnitus Patient presenting with PT anatomically correlated with a DAVF Type I or IIa DAVF on digital subtraction angiography (DSA), according to Cognard's classification. DAVF located on sigmoid , lateral or posterior longitudinal sinus. Highly effective contraception for women of childbearing potential, maintained during research procedures Affiliated or beneficiary of health insurance Signed informed consent Exclusion Criteria: Patient with DAVF not eligible for endovascular treatment . DAVF classification of IIb or more according to Cognard's classification. DAVF with severe sinus stenosis or occlusion judged as nor eligible for sinus stenting. DAVF showing evidence of recent (inferior to 3 months) thrombophlebitis at the site of fistulous dural sinus. Patient with DAVF previously treated with surgery or radiotherapy. Patient with multiple DAVF Controlateral sinus aplasia or occlusion Patient presenting contra-indication to the use of LEA according to the instructions For Use. Patient participating in another clinical study evaluating another medical device, Any condition or any situation that would prohibit the patient from coming to the investigational center for the follow-up as recommended by the study protocol at 6 months. Patient with any known allergy to heparin, acetylsalicylic acid, Coumadin , Warfarin or other antiplatelet medications Patient has undergone a surgery including endovascular procedures in the last 30 days prior to the study procedure. Patient has had an Intracranial hemorrhage and/or subarachnoid hemorrhage in the past 30 days prior to the study procedure Known serious sensitivity to radiographic contrast agents. Known sensitivity to nickel, titanium metals, or their alloys Known renal failure as defined by a serum creatinine > 2.5 mg/dl (or 220 μmol/l) or glomerular filtration rate (GFR) < 30. Patient who has a contraindication to MRI or angiography for whatever reason Women who are pregnant, lactating, or who are planning to become pregnant during the anticipated study period Patient unable to understand the nature, risks, significance and implications of the clinical investigation or unwilling to provide written informed consent Patient under legal protection