Studying a New Measurement From Digital Subtraction Angiography to Predict Outcomes in Cerebral Ischemia

What this Trial Is About

Ischemic cerebrovascular disease is a leading cause of death and disability worldwide. This study investigates a new parameter derived from Digital Subtraction Angiography DSA to evaluate cerebral blood flow and predict outcomes in patients with cerebral ischemia, specifically acute stroke with large vessel occlusion. Researchers aim to understand the relationship between this new DSA-based perfusion parameter and patient outcomes measured by the modified Rankin Scale. The study is observational and analyzes images from patients who have undergone DSA. Participants are classified based on their cerebral perfusion levels into good, middle, or poor perfusion groups using this new parameter. The study does not involve interventions but focuses on evaluating and comparing outcomes among these groups. Participants DSA images and follow-up data on their clinical outcomes, collected between 3 months and 2 years after the procedure, will be analyzed. The main outcome measured is the difference in recovery and disability levels between patients with good and poor perfusion. Additional comparisons between good and middle perfusion groups will also be reviewed. The study is conducted by Xian No.3 Hospital and will continue until July 2038.

A New Parameter Derived From DSA to Evaluate Cerebral Perfusion