Clinical Research Directory

Inclusion Criteria: 1\. Patients 18 years of age and scheduled to undergo clinical vessel wall MR imaging exams as part of their standard of care. Exclusion Criteria: 1. Any person under the age of 18 2. Presence of artifact-producing intracranial devices (aneurysm clips/coils, ventricular drains, craniectomy mesh, etc.) 3. Any person with contraindications to MRI (medical instability, non-MRI compatible implanted devices, retained metallic foreign bodies, claustrophobia) 4. Large space-occupying lesions (50 mL) or substantial mass effect (herniation, 5mm midline shift) on preceding brain imaging, 5. Imminently life-threatening co-morbid conditions 6. A history of premorbid disabling neurological or psychiatric disease, current substance abuse or remote substance abuse with permanent organic sequelae 7. Pregnancy or lactation