A total of 180 ICH or IVH patients will be studied. All patients will be inpatients admitted to the Stanford Stroke Center, a multidisciplinary referral center for the treatment of acute stroke. Consecutive patients will be enrolled provided they meet the inclusion and exclusion criteria and that they or a legally authorized representative give informed consent.
A. Men and non-pregnant women, at least 18 years of age.
B. Patients with an ICH or IVH admitted to Stanford University Medical center within 48 hours of symptom onset.
C. Ability to undergo MRI.
A. Patients with a known (preexisting) source for ICH, for example a known untreated arterio-venous malformation.
B. Patients receiving investigational drug therapies or procedures prior to MRI scanning.
C. Glasgow coma scale (GCS) score < 6 in the absence of sedating medications.
D. Informed consent cannot be obtained either directly from the patient or from a legally authorized representative.
E. Severe coexisting or terminal systemic disease that limits life expectancy or that may interfere with the conduct of the study