Portable MRI for Pediatric Hypoxic Ischemic Brain Injury

Inclusion Criteria: * Patients hospitalized in the Pediatric Intensive Care Unit, Cardiac Intensive Care Unit, or the Neonatal Intensive Care Unit * Ages 0-17 years at study enrollment * Acute neurologic deficit suspected secondary to Hypoxic Ischemic Brain Injury (HIBI) or patients at high risk for HIBI Exclusion Criteria: * Pregnancy * Any patient who has a contraindication to having an MRI Patients with a passive or active implant will: * First be reviewed on MRISafety.com to determine MR conditionality * If the device is listed as Conditional or Unsafe for a 1.5T or a 3T, the device will then be reviewed by the MRI Safety Officer or MRI Physician Section chief to determine true conditionality for the portable MRI