ECAA Brain MRI: Seeking the Link Between Extracranial Carotid Artery Aneurysms and Small Vessel Disease

Inclusion Criteria

• •Patient older than 18 years registered in the CAR treated with conservative therapy
• •Willingness and ability to participate in all scheduled procedures outlined in the protocol
• •Understanding of the Dutch language
• •Patient is able and willing to give informed consent.
• •Subjects registered in the CAR that have undergone surgical or endovascular treatment of the ECAA
• •Contradictions for MRI, such as 1) metallic objects in or around the body (e.g. cardiac implantable electronic device such as pacemakers and implantable cardioverter defibrillators (ICD); 2) claustrophobia, 3) pregnancy.
• •Other major neurological or psychiatric conditions affecting the brain and interfering with the study design (e.g. multiple sclerosis, epilepsy, Parkinson's disease, vascular dementia)
• •Unable to read or write the patient information letter and broad consent file
• •Patients who have a life expectancy of less than two years due to a pre-existing condition e.g. cancer