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目的:探讨新型冠状病毒肺炎（COVID-19）首次胸部高分辨率CT(HRCT）影像表现。方法:回顾性分析2020年1月3日至25日武汉市中西医结合医院确诊的106例COVID-19患者的首次胸部HRCT图像，对病灶分布、形态及周围受累情况进行统计和分析。结果:106例COVID-19患者首次肺部HRCT均发现病灶，单侧肺分布11例（10.4%），双侧肺分布95例（89.6%）；肺外周分布65例（61.3%），肺外周及中心同时分布41例（38.7%）；1个病灶8例（7.5%），2个病灶5例（4.7%），多发病灶93例（87.8%）；结节状病灶12例（11.3%），磨玻璃状病灶94例（88.7%），条索状病灶7例（6.6%），2种及以上形态共存病灶15例（14.2%）；累及一个肺叶10例（9.4%），累及2个及以上肺叶96例（90.6%）；纵隔淋巴结增大24例（22.6%）（>60岁患者19例，占79.2%），胸腔积液3例（2.8%），心包积液1例（0.9%），胸膜受累／增厚2例（1.9%）。>60岁患者多表现为多病灶，多形态，肺外周及中心同时分布，累及多个肺叶，纵隔淋巴结增大。结论:COVID-19患者首次胸部HRCT检查能发现肺部病灶，是首选的影像学检查方法，胸部HRCT扫描检查在NCP的早期诊断中有重要作用。“,”Objective:To investigate the initial chest high resolution CT (HRCT) manifestations of the patients with COVID-19.Methods:A retrospective analysis of the first chest HRCT images of 106 patients with COVID-19 was performed who were confirmed in our hospital from January 3 to 25, 2020. Lesion distribution, morphology and surrounding involvement were analyzed.Results:The lesions were found on all initial HRCT images of 106 patients, with unilateral lung distribution in 11 cases (10.4%) and bilateral lung distribution in other 95 cases(89.6%), peripheral distribution of lung in 65 cases (61.3%) and peripheral and central distribution in other 41 cases (38.7%). HRCT showed 8 cases (7.5%) with 1 lesion, 5 cases (4.7%) with 2 lesions, and other 93 cases (87.8%) with multiple lesions. HRCT also showed the nodular lesions in 12 cases(11.3%), ground-glass opacities in 94 cases (88.7%), fibrous stripes in 7 cases (6.6%), and mixed lesions in 15 cases (14.2%). Only one lung lobe was involved in 10 cases (9.4%) , while more than two lobes were involved in other 96 cases (90.6%) . In addition, 24 cases (22.6%) with enlarged mediastinal lymph nodes (over 60 years old in 19 cases, accounting for 79.2%), 3 cases with pleural effusion (2.8 %), 1 case with pericardial effusion (0.9%), and 2 cases with pleural involvement/thickening (1.9%) were found. Patients over 60 years old mostly presented with multiple lesions, various appearances, peripheral and central distributions of lungs, involving multiple lobes, and enlarged mediastinal lymph nodes.Conclusions:Lung COVID-19 lesions can be shown by the initial chest HRCT, which is the preferred imaging method. Thoracic HRCT scans play an important role in the early diagnosis of COVID-19.