Computer Scan Based Analysing System on Improving Stroke Management Quality Evaluation

Study population:patients with acute ischemic stroke who were admitted to the hospital within 7 days after the initial symptom onset. Program: There are multifaceted quality improvement interventions including: 1. Implementation of standardized templates of medical record, evidence‐based clinical pathway, and written care protocols. 2. Feedback system of performance measures. 3. Expert online consultation. Endpoints: Primary outcome:increase of diagnosis and treatment key performance indicator for acute ischemic stroke patients; Secondary outcome: the occurrence of ischemic stroke, total mortality, disability, and new clinical vascular events.