A Long-term Follow-up Study of Pulmonary Function Changes Using Phase-resolved Functional Lung MRI in Patients With COVID-19

A Long-term Follow-up Study of Pulmonary Function Changes Using Phase-resolved Functional Lung MRI in Patients With COVID-19

So far, the number of COVID-19 infections worldwide has exceeded 700 million. Long-term damage to the lungs is a major sequela of COVID infection. Pulmonary function testing is an important means for the evaluation of lung damage. MRI examinations with free breathing and no contrast agent can prevent patients from suffering from ionizing radiation damage caused by multiple CT examinations.

Inclusion Criteria:

• Older than 18 years; Sign the informed consent; Patients diagnosed with COVID-19 by nucleic acid test and survived to be discharged; Complete clinical data during hospitalization.

Exclusion Criteria:

• Patients with bacterial pneumonia; Patients with MRI contraindications.