Imaging characteristics of initial chest computed tomography and clinical manifestations of patients with COVID-19 pneumonia.

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Imaging characteristics of initial chest computed tomography and clinical manifestations of patients with COVID-19 pneumonia.

Jpn J Radiol. 2020 Jun;38(6):533-538

Authors: Fan N, Fan W, Li Z, Shi M, Liang Y

Abstract
PURPOSE: To investigate the chest CT imaging characteristics and clinical manifestations of patients with COVID-19 pneumonia.
METHODS: This study included 150 patients with COVID-19 pneumonia diagnosed from January 10 to February 12, 2020 to analyze their clinical and CT imaging characteristics.
RESULTS: The period between symptom onset and initial CT examination ranged from 1 to 8 days. There were 83 cases (55.33%) involving both lungs, 67 cases (44.67%) involving a single lung (left 25 cases and right 42 cases). There were 49 cases (32.67%) of single intrapulmonary lesion, 33 cases (22.00%) of multiple intrapulmonary lesions, 68 cases (44.00%) of diffused intrapulmonary lesions, 67 cases (44.67%) of subpleural lesions, 24 cases (16.00%) of lesions localizing along the bronchovascular bundles, and 59 cases (39.33%) with lesions in both locations. There were 18 cases (12.00%) exhibiting ground-glass nodules of < 10 mm, 124 cases (82.67%) of patchy ground-glass opacities with or without consolidation, 8 cases (5.33%) of cord-like lesions, 6 cases (4.00%) of pleural effusion, and 2 cases (1.33%) of enlarged lymph nodes.
CONCLUSIONS: The main manifestations of initial chest CT in COVID-19 pneumonia patients was ground-glass opacities, commonly involving single site in patients < 35 years old and multiple sites and extensive area in patients > 60 years old. The common lesion sites were the subpleural region and the posterior basal segments of the lower lobes, mostly showing thickening of the interlobular septum and mixed with consolidation.

PMID: 32318916 [PubMed - indexed for MEDLINE]

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