Abstract
Novel coronavirus disease (COVID- 19) is a highly infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This novel virus is mainly transmitted through respiratory droplets and close personal contact, causing recent global public health emergency. COVID- 19 high-risk groups include elderly and immunocompromised patients, patients with preexisting comorbidities such as cardiovascular disease, hypertension, diabetes, respiratory disease, and oncological complications. Chest computed tomography (CT), especially high- resolution CT (HRCT) plays an important role in the early diagnosis, staging and monitoring of patients with COVID- 19 pneumonia. The clinical characteristics and chest CT findings of COVID- 19 are reviewed, including the time course of lung changes on chest CT during recovery and correlation of chest CT and reverse-transcription polymerase chain reaction (RT-PCR) testing in COVID- 19.