Atrial Fibrosis in Obstructive Sleep Apnea Patients: A Pilot Study

The patient will be injected with late gadolinium enhancement (0.01 mmol/kg standard dosage), which is a contrast agent used in clinical practice in MRI imaging studies. The contrast agent is used to enhance specific regions/tissues on MRI and, in this study, will allow the investigators to identify fibrotic tissue within the heart. The patient then undergoes the MRI sequence, which lasts approximately 20-25 minutes. Images will be reviewed for quality by trained technicians. This will be repeated after 6 months.