Inclusion Criteria- Subjects 18 years and older
- Subjects willing to give consent and agree to regular follow up visits;
- Male/Female patients of all nationalities admitted to HGH or seen in the Stroke Ward/ TIA clinics with a confirmed diagnosis of acute stroke and TIA, confirmed on the initial standard of care ordered MRI imaging.
- Stroke onset is less than 48 hours.
Exclusion Criteria- Pregnant women or individuals with cognitive disabilities.
- individuals with onset > 48 hours.