Stroke (IMAGE) Intermountain Medical Center Caption Doctors know patients with atrial fibrillation are at a higher risk of having a stroke, and now a new study finds that integrating two separate clinical risk score models more accurately helps clinicians assess the stroke risk of patients with Afib. Credit Intermountain Medical Center Heart Institute Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.