Table 1.

Subject exclusion criteria

Exclusion criteria

1. Head CT findings consistent with acute primary intracranial hemorrhage (SAH, ICH, etc.) 2. Hemodynamically unstable patients requiring pharmacological support for hypotension 3. Subjects who underwent partial or full craniotomy 4. Additional intracranial pathologies present (tumor, hydrocephalus, etc.) 5. Anticipated insufficient time to acquire a complete set of scan as described by the protocol 6. Significant hemodynamic pharmacological agent (cocaine, amphetamine, etc.) 7. Subjects who are under arrest for a felony