Post-Acute COVID-19 Syndrome: 129Xe MRI Ventilation Defects and Respiratory Outcomes One Year Later

Background In individuals with postacute COVID-19 syndrome (PACS) and normal pulmonary function, xenon 129 (¹²⁹Xe) MRI ventilation defects, abnormal quality-of-life scores, and exercise limitation were reported 3 months after infection; the longitudinal trajectory remains unclear. Purpose To measure and compare pulmonary function, exercise capacity, quality of life, and ¹²⁹Xe MRI ventilation defect percent (VDP) in individuals with PACS …