Background
COVID-19 is a complex virus that has been spreading since December 2019. In this study, we aimed to assess the association between chest Computed Tomography (CT) signs and pejorative evolution, such as death, use of invasive endotracheal ventilation (IEV) and intensive care unit hospitalization (ICUH). We also evaluated the diagnostic performance of chest CT versus the diagnostic gold standard, RT-PCR.
Methods
This retrospective monocentric study included 349 patients who had a chest CT either for clinical suspicion of COVID-19 pneumonia with severe initial symptoms, or clinical deterioration in patients with suspected COVID-19 pneumonia, or clinical deterioration in RT-PCR positive patients.  Principal judgement criteria for pejorative evolution were: death, IEV, and ICUH.