Andrew Chang, MD Clinical Fellow UCSF Profile Clinical Divisions Abdominal Imaging Publications Increased Left Atrial Appendage Density on Computerized Tomography is Associated with Cardioembolic Stroke. Left Atrial Appendage Morphology Improves Prediction of Stagnant Flow and Stroke Risk in Atrial Fibrillation. Cardiac Biomarkers Predict Large Vessel Occlusion in Patients with Ischemic Stroke. Echocardiographic wall motion abnormalities in patients with stroke may warrant cardiac evaluation. Left Atrial Volume Index Is Associated With Cardioembolic Stroke and Atrial Fibrillation Detection After Embolic Stroke of Undetermined Source. Peri-procedural stroke or death in stenting of symptomatic severe intracranial stenosis. See All Publications