Abstract: Objective To investigate the clinical features and CT manifestations of pneumonia caused by novel coronavirus infection. Methods Retrospectively, clinical and imaging data of patients with pneumonia with 2019 new novel coronavirus infection confirmed in the Fourth People's Hospital and Liuzhou People's Hospital from January 24, 2020 to February 2, 2020 was analyzed. Chest CT scans were made in all the cases, the lung and mediastinum window were observed, the clinical data and chest CT imaging findings were analyzed.Results Most of the pneumonia patients infected by the new coronavirus had a fever as the primary symptom, which could be accompanied by muscle pain, cough, fatigue, dizziness, headache and pharyngeal itching. Laboratory tests showed normal or low white blood cell counts, normal or slightly lower eosinophil and lymphocyte counts and ratios, and elevated reactive proteins. Chest CT showed multiple patchy ground glass density shadows in the two lungs, distributed under the pleura, with or without consolidation. Thickened blood vessels and air bronchi could be seen in the lesions, and pleural involvement was less. Generally, however, there was no mediastinal lymph node enlargement, pleural effusion or extrapulmonary lesions. The lesion changes quickly in a short time. Conclusion There are of great significance in determining the lesion range and course of pneumonia infected by novel coronavirus through imaging findings, and important guiding significance for the early detection and treatment of pneumonia infected by novel coronavirus.

Key words: Coronavirus disease 2019, Tomography, X-ray computed, Imaging diagnosis