Research Projects (1) Novel Vascular Manifestations of Chronic Obstructive Pulmonary Disease (COPD). This project involves using MRI to explore mechanisms of cerebral small vessel disease in patients with COPD and exploring lung-brain pathophysiological links (2) Post COVID-19 Brain Imaging (PCBrain) Study. A prospective clinical and imaging cohort study to understand the association between macro- and micro-structural brain damage and clinical characteristics of COVID-19 in patients recently