Automated quantification of the pulmonary volume impaired during acute respiratory failure could be helpful to assess patient severity during COVID-19 infection or perioperative medicine, for example.

This study aims at assessing the correlation between the amount of radiologic pulmonary alteration and the clinical severity in two clinical situation :

1. SARS-CoV-2 infections
2. Postoperative hypoxemic acute respiratory failure.

Inclusion Criteria:

• Subject admitted to a care unit of the University Hospitals of Strasbourg or the University Hospital of Nancy and presenting a suspicion of SARS-CoV-2 infection or postoperative hypoxemic respiratory failure
• Able to understand the objectives and risks of the research and to give dated and signed informed consent.

Subjects may also be included in emergency or immediate life-threatening situations.

• Subject with insurance covering

Exclusion Criteria:

• Pregnant woman (pregnancy confirmed by a urine or blood test)
• Subject usually on home oxygen therapy
• Subject under court protection
• Subject under guardianship or curatorship