Quantifying Collateral Perfusion in Cerebrovascular Disease-Moyamoya Disease and Stroke Patients

Exclusion Criteria

• •Level of consciousness score of 2 or greater as defined by the NIH stroke scale.
• •Symptoms likely related to psychoactive drugs or patients with symptoms related to an active inflammatory disease such as AIDS, meningitis, or cerebritis.
• •Psychiatric or substance abuse disorder or dementia that interferes with evaluation or interpretation of the neurologic and mental assessment of these patients.
• •Informed consent cannot be obtained either from the patient or legal representative.
• •Severe coexisting or terminal systemic disease that limits life expectancy or that may interfere with the conduct of the study.
• •Symptoms related to an alternative diagnosis such as seizures or migraine.
• •Patients receiving any thrombolytic agent or receiving acute stroke investigational drug therapies during the 30-day study.