Inter-observer variability with five computed tomography severity scales for COVID-19 pneumonia assessment.

Introduction: By the end 2019 there was an outbreak of pneumonia caused by a new coronavirus, a disease that was called coronavirus disease 2019 (COVID-19). Computed tomography (CT) has played an important role in the diagnosis of COVID-19 patients.

Objective: To demonstrate inter-observer variability with five scales proposed for measuring the extent of COVID-19 pneumonia on tomography.