This validation cohort preliminary study had a very good inter observer agreement between the reading radiologists, and the overall CXR score was a good parameter to evaluate severity and outcomes, however there is need for larger study for validation. In the current times of pandemic, with the great strain on resources and logistics, the need for serial CT scans can be obviated with use of serial bedside radiographs for semi- quantitative assessment of severity and monitoring the covid-19 pneumonia especially in ICU setting.
Article: Borghesi and Maroldi. COVID-19 outbreak in Italy: experimental chest X-ray scoring system for quantifying and monitoring disease progression. Radiol Med. 2020 May 1 doi: 10.1007/s11547-020-01200-3Indications and tests for diagnosis-Chest X Ray