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. 2022 Jun 28;306(1):252–260. doi: 10.1148/radiol.220676

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© 2022 by the Radiological Society of North America, Inc.

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Representative three-dimensional chest CT image in a 52-year-old man with the Omicron variant of COVID-19 shows pneumonia evenly affecting lungs (pneumonia volume, 17.5%) and a preserved percentage of blood volume in intrapulmonary vessels, with a cross-sectional area less than 5 mm2 relative to the total pulmonary blood volume (51.5%). Blue vessels have a cross-sectional area of 5 mm2 or greater, and yellow vessels have a cross-sectional area less than 5 mm2. Red indicates COVID-19 pneumonia. — Representative three-dimensional chest CT image in a 52-year-old man with the Omicron variant of COVID-19 shows pneumonia evenly affecting lungs (pneumonia volume, 17.5%) and a preserved percentage of blood volume in intrapulmonary vessels, with a cross-sectional area less than 5 mm² relative to the total pulmonary blood volume (51.5%). Blue vessels have a cross-sectional area of 5 mm² or greater, and yellow vessels have a cross-sectional area less than 5 mm². Red indicates COVID-19 pneumonia.