Patient Selection for CT Imaging Features from Study #1

Three of the 21 patients showed normal chest CT examinations

Initial Results for CT Imaging from Study #1

Eight patients, including those who showed normal chest CT examinations, underwent follow-up chest CT scans.

Time between initial CT and follow-up CT:


mean: 2.5 days
range:  1–4 days

- one infected patient (13%) with normal initial scan showed no change
- another patient with normal initial scan showed a new solitary, rounded peripheral ground-glass lesion in CT image taken after 3 days


Follow-up Results for CT Imaging from Study #1

Chest CT images of COVID-19 patients showed some similarities with images of patients suffering from the same viral family (SARS & MERS)
-	 predominance in the peripheral regions
-	 associated with crazy-paving pattern
-	 “absence of pulmonary cavitations, pleural effusions, lymphadenopathy”



Chest CT images of COVID-19 patients that are different from other coronaviruses
-	 showed no definite lobar or craniocaudal distribution
-	 no discrete pulmonary emphysema or fibrosis


Smith College

- Chest CT Imaging Features of COVID-19 Patients from Study #1

CT Imaging Features of COVID-19 Patients

Chung, M., Bernheim, A., Mei, X., Zhang, M., Huang, M., Zeng, X., Cui, Z., Xu, W., Yang, Y., Fayad, Z., Jacobi, A., Li, K., Li, S., Shan, H.  CT Imaging Features of 2019 Novel Coronavirus (2019-nCoV). Radiology. 2020. doi: 10.1148/radiol.2020200230

https://pubs.rsna.org/doi/10.1148/radiol.2020200230

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