Clinical Research Directory

Inclusion Criteria: * Male or female ≥ 18 years of age at presentation to Yale New Haven Hospital Adult ED * Order to receive conventional brain MRI imaging originating in the YNHH Adult ED Exclusion Criteria: * Lack of assent from treating physician for inclusion in this protocol. * Contraindications to 1.5T MRI evaluation, including: 1. Cardiac Pacemaker or defibrillator 2. Aneurysm clip 3. Implants or devices attached to the body in the chest or above, such as: 1. Nerve stimulator 2. Deep brain stimulator 3. Programmable shunt 4. Stent 5. Pain pump 6. Artificial extremity 4. Implants in the ears (hearing aid or cochlear implant 5. Any shrapnel, pellets, bullets, metallic fragments, or other metallic foreign body above the chest 6. Metallic joints, rods, screws, or other orthopedic implants in or above the chest 7. Braces, dentures, removable teeth, or dental expanders that cannot be removed. 8. Body piercings in or above the chest that cannot be removed. 9. MRI-incompatible Tracheostomy tube or Swan Ganz catheter in place 10. Status Epilepticus or anyone previously seizing deemed by the physician not to be suitable for pMRI