A Feasibility Study for Randomization of Code Stroke Imaging Strategies
The purpose of this study is to test feasibility of a comparative effectiveness framework for acute stroke imaging using prospective electronic health data. This is a prospective, cohort feasibility study of patients presenting to the Emergency Department with suspected acute ischemic stroke. The clinical stroke team will not be blinded to the imaging modality given the nature and purpose of the interventions/imaging. Knowledge of the imaging modality used and the knowledge gained from the resulting data will need to be considered for treatment decisions. Blinding will be maintained for data abstraction and analyses. Analysis will be on an "intent-to-scan" basis and all qualifying patients will be included in their assigned cohort.
- EligibilityCriteria: Inclusion Criteria:  Age ≥ 18 years Time last known well to presentation ≤ 24 hours Code-stroke (suspected treatable ischemic stroke) called prior to or upon arrival to Emergency Department Presenting to Emergency Department for first time during study period  Exclusion Criteria:  Transfer patients Contraindication for brain perfusion scan Prior inclusion in study - HealthyVolunteers: Accepts Healthy Volunteers - Gender: All - MinimumAge: 18 Years - MaximumAge: 120 Years - StdAgeList: Adult, Older Adult - StudyPopulation: Patients presenting as Code Stroke to Emergency Department at one of four network stroke centers - SamplingMethod: Non-Probability Sample