COVID-19 CT scan: Difference between revisions
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**No subpleural sparing | **No subpleural sparing | ||
== Radiological Society of North America == | |||
The Radiological Society of North America (RSNA) classified CT finidngs of covid-19 infection into four categories which was endorsed by the Society of Thoracic Radiology and the American College of Radiology (ACR): | |||
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! colspan="2" |RSNA CT findings classification of Covid-19<ref name="SimpsonKay2020">{{cite journal|last1=Simpson|first1=Scott|last2=Kay|first2=Fernando U.|last3=Abbara|first3=Suhny|last4=Bhalla|first4=Sanjeev|last5=Chung|first5=Jonathan H.|last6=Chung|first6=Michael|last7=Henry|first7=Travis S.|last8=Kanne|first8=Jeffrey P.|last9=Kligerman|first9=Seth|last10=Ko|first10=Jane P.|last11=Litt|first11=Harold|title=Radiological Society of North America Expert Consensus Statement on Reporting Chest CT Findings Related to COVID-19. Endorsed by the Society of Thoracic Radiology, the American College of Radiology, and RSNA.|journal=Radiology: Cardiothoracic Imaging|volume=2|issue=2|year=2020|pages=e200152|issn=2638-6135|doi=10.1148/ryct.2020200152}}</ref> | |||
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|'''Typical appearance''' | |||
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* Peripheral, bilateral, GGO +/- consolidation or visible intralobular lines (“crazy paving” pattern) | |||
* Multifocal GGO of rounded morphology +/- consolidation or visible intralobular lines (“crazy paving” pattern) | |||
* reverse halo sign or other findings of organizing pneumonia | |||
|- | |||
|'''Indeterminate appearance''' | |||
|Absence of typical CT findings and the presence of | |||
* Multifocal, diffuse, perihilar, or unilateral GGO +/- consolidation lacking a specific distribution and are non-rounded or non-peripheral | |||
* Few very small GGO with a non-rounded and non-peripheral distribution | |||
|- | |||
|'''Atypical appearance''' | |||
|Absence of typical or indeterminate features and the presence of | |||
* Isolated lobar or segmental consolidation without GGO | |||
* Discrete small nodules (e.g. centrilobular, tree-in-bud) | |||
* Lung cavitation | |||
* Smoother interlobular septal thickening with pleural effusion | |||
|- | |||
|'''Negative for pneumonia''' | |||
|No CT features to suggest pneumonia, in particular, absent GGO and consolidation | |||
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===Images=== | ===Images=== | ||
[[File:Coronavirus CT.jpg|300px|thumb|left|CT scan showing pulmonary focal opacity in a patient infected with COVID-19. <ref>Case courtesy of Medico Assistente Dr. Chong Keng Sang, Sam, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/73890">rID: 73890</a></ref>]] | [[File:Coronavirus CT.jpg|300px|thumb|left|CT scan showing pulmonary focal opacity in a patient infected with COVID-19. <ref>Case courtesy of Medico Assistente Dr. Chong Keng Sang, Sam, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/73890">rID: 73890</a></ref>]] |
Revision as of 18:29, 29 June 2020
For COVID-19 frequently asked inpatient questions, click here
For COVID-19 frequently asked outpatient questions, click here
COVID-19 Microchapters |
Diagnosis |
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Treatment |
Case Studies |
COVID-19 CT scan On the Web |
American Roentgen Ray Society Images of COVID-19 CT scan |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sabawoon Mirwais, M.B.B.S, M.D.[2] Syed Hassan A. Kazmi BSc, MD [3]
Overview
Chest CT scan findings in patients infected with coronavirus can include unilateral or bilateral pneumonia, mottling and ground glass opacity, focal or multifocal opacities, consolidation, and septal thickening with subpleural and lower lobe involvement more likely.
CT scan
- Chest CT scan findings in patients infected with coronavirus can include:
- Unilateral or bilateral pneumonia[1][2][3]
- Mottling and ground-glass opacity
- Focal or multifocal opacities
- Consolidation
- Septal thickening
- Subpleural and lower lobe involvement more likely
- No thoracic lymphadenopathy
- Chest CT scan findings common in patients infected with 2019-nCoV are:
- Bilateral peripheral lung opacities[4]
- No subpleural sparing
Radiological Society of North America
The Radiological Society of North America (RSNA) classified CT finidngs of covid-19 infection into four categories which was endorsed by the Society of Thoracic Radiology and the American College of Radiology (ACR):
RSNA CT findings classification of Covid-19[5] | |
---|---|
Typical appearance |
|
Indeterminate appearance | Absence of typical CT findings and the presence of
|
Atypical appearance | Absence of typical or indeterminate features and the presence of
|
Negative for pneumonia | No CT features to suggest pneumonia, in particular, absent GGO and consolidation |
-
- :
Images
References
- ↑ Paul NS, Roberts H, Butany J, Chung T, Gold W, Mehta S, Konen E, Rao A, Provost Y, Hong HH, Zelovitsky L, Weisbrod GL (2004). "Radiologic pattern of disease in patients with severe acute respiratory syndrome: the Toronto experience". Radiographics. 24 (2): 553–63. doi:10.1148/rg.242035193. PMID 15026600.
- ↑ Ajlan AM, Ahyad RA, Jamjoom LG, Alharthy A, Madani TA (October 2014). "Middle East respiratory syndrome coronavirus (MERS-CoV) infection: chest CT findings". AJR Am J Roentgenol. 203 (4): 782–7. doi:10.2214/AJR.14.13021. PMID 24918624.
- ↑ Chen, Nanshan; Zhou, Min; Dong, Xuan; Qu, Jieming; Gong, Fengyun; Han, Yang; Qiu, Yang; Wang, Jingli; Liu, Ying; Wei, Yuan; Xia, Jia'an; Yu, Ting; Zhang, Xinxin; Zhang, Li (2020). "Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study". The Lancet. doi:10.1016/S0140-6736(20)30211-7. ISSN 0140-6736.
- ↑ Lei, Junqiang; Li, Junfeng; Li, Xun; Qi, Xiaolong (2020). "CT Imaging of the 2019 Novel Coronavirus (2019-nCoV) Pneumonia". Radiology: 200236. doi:10.1148/radiol.2020200236. ISSN 0033-8419.
- ↑ Simpson, Scott; Kay, Fernando U.; Abbara, Suhny; Bhalla, Sanjeev; Chung, Jonathan H.; Chung, Michael; Henry, Travis S.; Kanne, Jeffrey P.; Kligerman, Seth; Ko, Jane P.; Litt, Harold (2020). "Radiological Society of North America Expert Consensus Statement on Reporting Chest CT Findings Related to COVID-19. Endorsed by the Society of Thoracic Radiology, the American College of Radiology, and RSNA". Radiology: Cardiothoracic Imaging. 2 (2): e200152. doi:10.1148/ryct.2020200152. ISSN 2638-6135.
- ↑ Case courtesy of Medico Assistente Dr. Chong Keng Sang, Sam, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/73890">rID: 73890</a>
- ↑ Case courtesy of Medico Assistente Dr. Chong Keng Sang, Sam, <a href="https://radiopaedia.org/">Radiopaedia.org</a>. From the case <a href="https://radiopaedia.org/cases/73890">rID: 73890</a>