Multicentric Retrospective Observational Study of Thoracic Scanner Performance in COVID Screening.

Multicentric Retrospective Observational Study of Thoracic Scanner Performance in COVID Screening. Comparison to Virological Testing and Multiparametric Gold Standard

All patients included in this search will be on anonymized file: Symptomatic patients consulting for suspicion of COVID 19 with indication to a screening (RT-PCR, Scanner) according to the criteria of the Ministry of Health.

To evaluate the diagnostic performance of chest CT in screening for COVID-related lung injury in patients with a clinical suspicion of COVID.

CT scan results for COVID according to French thoracic imaging society will be dichotomized into evocative or compatible (considered positive) non-evocative (considered negative) The results will be compared to the gold standard corresponding to a multiparametric element: the discharge summary.

Ct Scan performance will be recorded and analyzed.

Inclusion Criteria:

• All patients suspected of COVID 19 consulting for diagnostic

Exclusion Criteria:

• Delay between RT-PCR and Thoracic Scan greater than 6 days.