Yoon, Soon Ho; Lee, Kyung Hee; Kim, Jin Yong; Lee, Young Kyung; Ko, Hongseok; Kim, Ki Hwan; Park, Chang Min; Kim, Yun Hyeon
Korean journal of radiology
2020Apr ; 21 ( 4 ) :494-500.
PMID : 32100485
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Yoon, Soon Ho - Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea. yshoka@gmail.com.
Lee, Kyung Hee - Department of Radiology, Seoul National University Bundang Hospital, Seongnam,
Kim, Jin Yong - Department of Internal Medicine, Incheon Medical Center, Incheon, Korea.
Lee, Young Kyung - Department of Radiology, Seoul Medical Center, Seoul, Korea.
Ko, Hongseok - Department of Radiology, National Medical Center, Seoul, Korea.
Kim, Ki Hwan - Department of Radiology, Myongji Hospital, Goyang, Korea.
Park, Chang Min - Department of Radiology, Seoul National University College of Medicine, Seoul
Kim, Yun Hyeon - Department of Radiology, Chonnam National University Hospital, Gwangju, Korea.
ABSTRACT
OBJECTIVE: This study presents a preliminary report on the chest radiographic and computed tomography (CT) findings of the 2019 novel coronavirus disease (COVID-19) pneumonia in Korea. MATERIALS AND
METHODS: As part of a multi-institutional collaboration coordinated by the Korean Society of Thoracic Radiology, we collected nine patients with COVID-19 infections who had undergone chest radiography and CT scans. We analyzed the radiographic and CT findings of COVID-19 pneumonia at baseline. Fisher's exact test was used to compare CT findings depending on the shape of pulmonary lesions.
RESULTS: Three of the nine patients (33.3%) had parenchymal abnormalities detected by chest radiography, and most of the abnormalities were peripheral consolidations. Chest CT images showed bilateral involvement in eight of the nine patients, and a unilobar reversed halo sign in the other patient. In total, 77 pulmonary lesions were found, including patchy lesions (39%), large confluent lesions (13%), and small nodular lesions (48%). The peripheral and posterior lung fields were involved in 78% and 67% of the lesions, respectively. The lesions were typically ill-defined and were composed of mixed ground-glass opacities and consolidation or pure ground-glass opacities. Patchy to confluent lesions were primarily distributed in the lower lobes (p = 0.040) and along the pleura (p < 0.001), whereas nodular lesions were primarily distributed along the bronchovascular bundles (p = 0.006). CONCLUSION: COVID-19 pneumonia in Korea primarily manifested as pure to mixed ground-glass opacities with a patchy to confluent or nodular shape in the bilateral peripheral posterior lungs. A considerable proportion of patients with COVID-19 pneumonia had normal chest radiographs. CI - Copyright (c) 2020 The Korean Society of Radiology.
keyword
*COVID-19; *Chest X-ray; *Computed tomography; *Coronavirus; *Pneumonia
MESH
Coronavirus Infections/*diagnostic imaging, Female, Humans, Lung/*diagnostic imaging, Male, Middle Aged, Pneumonia, Viral/*diagnostic imaging, Radiography, Thoracic, Republic of Korea, Thorax, Tomography, X-Ray Computed
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