an eight-week follow-up study in patients with covid-19 respiratory failure: delayed recovery or lung sequel

In recent months, coronavirus disease 2019 (covid-19) is a significant global health problem that has a tremendous negative impact on the human being, and almost all countries of the world have been affected by the disease. ct imaging techniques have an important role in the primary diagnosis of pneumonia secondary to covid-19; moreover, the level of pulmonary involvement in ct scan is one of the criteria for disease severity in the acute phase of covid-19 pneumonia. still, the role of ct scan in the follow-up period is unknown.