Chest X-ray and CT findings of early H7N9 avian influenza cases
Background The H7N9 strain of bird flu is a new type of avian flu that was identified at the end of March 2013. The disease is concerning because most patients have become severely ill. Purpose To study the X-ray and computed tomography (CT) findings of early H7N9 avian influenza cases. Material and...
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crsagepubl:10.1177/0284185114535209 2024-09-15T17:56:49+00:00 Chest X-ray and CT findings of early H7N9 avian influenza cases Lin, Zhi Qian Xu, Xue Qin Zhang, Ke Bei Zhuang, Zhi Guo Liu, Xiao Sheng Zhao, Li Qun Lin, Chang Yang Li, Yang Hua, Xiao Lan Zhao, Hui Lin Hua, Jia Xu, Jian Rong 2015 http://dx.doi.org/10.1177/0284185114535209 http://journals.sagepub.com/doi/pdf/10.1177/0284185114535209 http://journals.sagepub.com/doi/full-xml/10.1177/0284185114535209 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license Acta Radiologica volume 56, issue 5, page 552-556 ISSN 0284-1851 1600-0455 journal-article 2015 crsagepubl https://doi.org/10.1177/0284185114535209 2024-07-01T04:24:02Z Background The H7N9 strain of bird flu is a new type of avian flu that was identified at the end of March 2013. The disease is concerning because most patients have become severely ill. Purpose To study the X-ray and computed tomography (CT) findings of early H7N9 avian influenza cases. Material and Methods Chest radiography and CT were performed in six patients with H7N9 avian influenza within 1–20 days after onset. The CT examinations included conventional spiral CT and high-resolution CT. The findings on the radiography and CT images were analyzed. Results Abnormal X-ray and CT findings were present in all of the patients. All of the cases had acute onset. In the early stage, the right lung was more commonly affected (particularly in the right upper and middle lobes). The lesions rapidly expanded to the entire lungs and were characterized primarily by ground-glass opacities (GGOs) combined with consolidation. Diffuse GGO was observed in all six cases (1 was symmetric, and 5 were non-symmetric). Local consolidation was found in four cases, and lobar consolidation was found in two cases. Normal lung tissue was observed between the lesions. Pleural thickening was common and was combined with pleural/pericardial effusion or mediastinal lymph node enlargement. Reticular changes, centrilobular nodules, and the tree-in-bud sign were observed in some cases, but reticular changes, bronchial wall thickening, and hyperinflation were not found. Conclusion Radiological changes associated with both acute pneumonia and acute interstitial inflammation were observed in early H7N9 avian influenza cases. Serial chest X-rays were useful for the diagnosis and severity assessment of the disease. CT may provide a more accurate assessment of the lung pathology. Article in Journal/Newspaper Avian flu SAGE Publications Acta Radiologica 56 5 552 556 |
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Background The H7N9 strain of bird flu is a new type of avian flu that was identified at the end of March 2013. The disease is concerning because most patients have become severely ill. Purpose To study the X-ray and computed tomography (CT) findings of early H7N9 avian influenza cases. Material and Methods Chest radiography and CT were performed in six patients with H7N9 avian influenza within 1–20 days after onset. The CT examinations included conventional spiral CT and high-resolution CT. The findings on the radiography and CT images were analyzed. Results Abnormal X-ray and CT findings were present in all of the patients. All of the cases had acute onset. In the early stage, the right lung was more commonly affected (particularly in the right upper and middle lobes). The lesions rapidly expanded to the entire lungs and were characterized primarily by ground-glass opacities (GGOs) combined with consolidation. Diffuse GGO was observed in all six cases (1 was symmetric, and 5 were non-symmetric). Local consolidation was found in four cases, and lobar consolidation was found in two cases. Normal lung tissue was observed between the lesions. Pleural thickening was common and was combined with pleural/pericardial effusion or mediastinal lymph node enlargement. Reticular changes, centrilobular nodules, and the tree-in-bud sign were observed in some cases, but reticular changes, bronchial wall thickening, and hyperinflation were not found. Conclusion Radiological changes associated with both acute pneumonia and acute interstitial inflammation were observed in early H7N9 avian influenza cases. Serial chest X-rays were useful for the diagnosis and severity assessment of the disease. CT may provide a more accurate assessment of the lung pathology. |
format |
Article in Journal/Newspaper |
author |
Lin, Zhi Qian Xu, Xue Qin Zhang, Ke Bei Zhuang, Zhi Guo Liu, Xiao Sheng Zhao, Li Qun Lin, Chang Yang Li, Yang Hua, Xiao Lan Zhao, Hui Lin Hua, Jia Xu, Jian Rong |
spellingShingle |
Lin, Zhi Qian Xu, Xue Qin Zhang, Ke Bei Zhuang, Zhi Guo Liu, Xiao Sheng Zhao, Li Qun Lin, Chang Yang Li, Yang Hua, Xiao Lan Zhao, Hui Lin Hua, Jia Xu, Jian Rong Chest X-ray and CT findings of early H7N9 avian influenza cases |
author_facet |
Lin, Zhi Qian Xu, Xue Qin Zhang, Ke Bei Zhuang, Zhi Guo Liu, Xiao Sheng Zhao, Li Qun Lin, Chang Yang Li, Yang Hua, Xiao Lan Zhao, Hui Lin Hua, Jia Xu, Jian Rong |
author_sort |
Lin, Zhi Qian |
title |
Chest X-ray and CT findings of early H7N9 avian influenza cases |
title_short |
Chest X-ray and CT findings of early H7N9 avian influenza cases |
title_full |
Chest X-ray and CT findings of early H7N9 avian influenza cases |
title_fullStr |
Chest X-ray and CT findings of early H7N9 avian influenza cases |
title_full_unstemmed |
Chest X-ray and CT findings of early H7N9 avian influenza cases |
title_sort |
chest x-ray and ct findings of early h7n9 avian influenza cases |
publisher |
SAGE Publications |
publishDate |
2015 |
url |
http://dx.doi.org/10.1177/0284185114535209 http://journals.sagepub.com/doi/pdf/10.1177/0284185114535209 http://journals.sagepub.com/doi/full-xml/10.1177/0284185114535209 |
genre |
Avian flu |
genre_facet |
Avian flu |
op_source |
Acta Radiologica volume 56, issue 5, page 552-556 ISSN 0284-1851 1600-0455 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/0284185114535209 |
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Acta Radiologica |
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56 |
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5 |
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552 |
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556 |
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1810433002175463424 |