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Ct-Scan Findings of Covid-19 Pneumonia Based on the Time Elapsed From the Beginning of Symptoms to the Ct Imaging Evaluation: A Descriptive Study in Iran Publisher Pubmed



Jafari S1 ; Tabary M2 ; Eshraghi S1 ; Araghi F3 ; Aryannejad A2 ; Mohammadnejad E4 ; Rasoolinejad M1 ; Hajiabdolbaghi M1 ; Koochak HE1 ; Ahmadinejad Z1 ; Abbasian L1 ; Manshadi SAD1 ; Salehi M1 ; Khalili H5 Show All Authors
Authors
  1. Jafari S1
  2. Tabary M2
  3. Eshraghi S1
  4. Araghi F3
  5. Aryannejad A2
  6. Mohammadnejad E4
  7. Rasoolinejad M1
  8. Hajiabdolbaghi M1
  9. Koochak HE1
  10. Ahmadinejad Z1
  11. Abbasian L1
  12. Manshadi SAD1
  13. Salehi M1
  14. Khalili H5
  15. Yazdi NA6
  16. Seifi A1
Show Affiliations
Authors Affiliations
  1. 1. Department of Infectious Diseases, School of Medicine, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Skin research center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  4. 4. Department of Medical-Surgical Nursing and Basic Sciences, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Department of Pharmacotherapy, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
  6. 6. Department of Radiology, Liver Transplant Research Center, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran

Source: Romanian journal of internal medicine = Revue roumaine de medecine interne Published:2020


Abstract

Background. Coronavirus disease 2019 (COVID-19) was initially detected in Wuhan city, China. Chest CT features of COVID-19 pneumonia have been investigated mostly in China, and there is very little information available on the radiological findings occurring in other populations. In this study, we aimed to describe the characteristics of chest CT findings in confirmed cases of COVID-19 pneumonia in an Iranian population, based on a time classification.Methods. Eighty-nine patients with COVID-19 pneumonia, confirmed by a real-time RT-PCR test, who were admitted to non-ICU wards and underwent a chest CT scan were retrospectively enrolled. Descriptive evaluation of radiologic findings was performed using a classification based on the time interval between the initiation of the symptoms and chest CT-scan.Results. The median age of patients was 58.0 years, and the median time interval from the onset of symptoms to CT scan evaluation was 7 days. Most patients had bilateral (94.4%) and multifocal (91.0%) lung involvement with peripheral distribution (60.7%). Also, most patients showed involvement of all five lobes (77.5%). Ground-glass opacities (GGO) (84.3%) and mixed GGO with consolidation (80.9%) were the most common identified patterns. We also found that as the time interval between symptoms and CT scan evaluation increased, the predominant pattern changed from GGO to mixed pattern and then to elongated-containing and band-like-opacities-containing pattern; on the other hand, the percentage of lung involvement increased.Conclusions. Bilateral multifocal GGO, and mixed GGO with consolidation were the most common patterns of COVID-19 pneumonia in our study. However, these patterns might change according to the time interval from symptoms. © 2020 Sirous Jafari et al., published by Sciendo.