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CT imaging features of COVID-19 pneumonia: initial experience from Turkey.
Diagn Interv Radiol. 2020 Jul; 26(4):308-314.DI

Abstract

PURPOSE

We aimed to demonstrate the computed tomography (CT) findings observed at the initial presentation of coronavirus disease 2019 (COVID-19) pneumonia and reveal the most frequent infiltration and distribution patterns of the disease.

METHODS

One hundred and eighty-five patients (87 men, 98 women; mean age, 48.7 years), who underwent RT-PCR sampling and high-resolution CT examination in our hospital between March 15, 2020, and April 15, 2020, and got a definitive diagnosis of COVID-19 disease via initial or follow-up RT-PCR test, were included in the study. We comprehensively analyzed the most common and relatively rare CT imaging features (e.g., distribution pattern, density of the lesions, additional CT signs) in patients diagnosed with COVID-19 pneumonia.

RESULTS

Thirty-eight patients (20.6%) had no evidence of pneumonia on their initial high-resolution CT images. Among 147 patients (79.4%) who had parenchymal infiltration consistent with pneumonia, 10 (6.8%) had a negative baseline RT-PCR test, and positivity was detected as a result of repeated tests. Most of the patients had multifocal (89.1%) and bilateral (86.4%) lesions. The most common location, right lower lobe, was affected in 87.8% of the patients. Lesions were distributed predominantly at peripheral (87.1%) and posterior (46.3%) areas of lung parenchyma. Most of the patients had pure ground glass opacity (GGO) (82.3%) followed by GGO with consolidation (32.7%) and crazy paving pattern (21.8%). Pure consolidation, solid nodules, halo sign, reverse halo sign, vascular enlargement, subpleural line, air-bronchogram, and bronchiectasis were the other findings observed in at least 15% of the cases. Halo sign, acinar nodules, air-bubble sign, pleural thickening and effusion, mediastinal and/or hilar lymphadenopathy were seen rarely (2%-12.9%). Pericardial effusion, pneumothorax, cavitation, and tree-in-bud pattern were not detected in our study group.

CONCLUSION

Multifocal and bilateral GGO infiltration predominantly distributed in peripheral, posterior, and lower lung areas was the most common infiltration pattern.

Authors+Show Affiliations

Department of Radiology, Ege University Faculty of Medicine, Izmir, Turkey.Department of Radiology, Ege University Faculty of Medicine, Izmir, Turkey.Department of Radiology, Ege University Faculty of Medicine, Izmir, Turkey.Department of Radiology, Ege University Faculty of Medicine, Izmir, Turkey.Department of Radiology, Ege University Faculty of Medicine, Izmir, Turkey.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32558645

Citation

Çinkooğlu, Akın, et al. "CT Imaging Features of COVID-19 Pneumonia: Initial Experience From Turkey." Diagnostic and Interventional Radiology (Ankara, Turkey), vol. 26, no. 4, 2020, pp. 308-314.
Çinkooğlu A, Hepdurgun C, Bayraktaroğlu S, et al. CT imaging features of COVID-19 pneumonia: initial experience from Turkey. Diagn Interv Radiol. 2020;26(4):308-314.
Çinkooğlu, A., Hepdurgun, C., Bayraktaroğlu, S., Ceylan, N., & Savaş, R. (2020). CT imaging features of COVID-19 pneumonia: initial experience from Turkey. Diagnostic and Interventional Radiology (Ankara, Turkey), 26(4), 308-314. https://doi.org/10.5152/dir.2020.20307
Çinkooğlu A, et al. CT Imaging Features of COVID-19 Pneumonia: Initial Experience From Turkey. Diagn Interv Radiol. 2020;26(4):308-314. PubMed PMID: 32558645.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - CT imaging features of COVID-19 pneumonia: initial experience from Turkey. AU - Çinkooğlu,Akın, AU - Hepdurgun,Cenk, AU - Bayraktaroğlu,Selen, AU - Ceylan,Naim, AU - Savaş,Recep, PY - 2020/6/20/pubmed PY - 2020/8/4/medline PY - 2020/6/20/entrez SP - 308 EP - 314 JF - Diagnostic and interventional radiology (Ankara, Turkey) JO - Diagn Interv Radiol VL - 26 IS - 4 N2 - PURPOSE: We aimed to demonstrate the computed tomography (CT) findings observed at the initial presentation of coronavirus disease 2019 (COVID-19) pneumonia and reveal the most frequent infiltration and distribution patterns of the disease. METHODS: One hundred and eighty-five patients (87 men, 98 women; mean age, 48.7 years), who underwent RT-PCR sampling and high-resolution CT examination in our hospital between March 15, 2020, and April 15, 2020, and got a definitive diagnosis of COVID-19 disease via initial or follow-up RT-PCR test, were included in the study. We comprehensively analyzed the most common and relatively rare CT imaging features (e.g., distribution pattern, density of the lesions, additional CT signs) in patients diagnosed with COVID-19 pneumonia. RESULTS: Thirty-eight patients (20.6%) had no evidence of pneumonia on their initial high-resolution CT images. Among 147 patients (79.4%) who had parenchymal infiltration consistent with pneumonia, 10 (6.8%) had a negative baseline RT-PCR test, and positivity was detected as a result of repeated tests. Most of the patients had multifocal (89.1%) and bilateral (86.4%) lesions. The most common location, right lower lobe, was affected in 87.8% of the patients. Lesions were distributed predominantly at peripheral (87.1%) and posterior (46.3%) areas of lung parenchyma. Most of the patients had pure ground glass opacity (GGO) (82.3%) followed by GGO with consolidation (32.7%) and crazy paving pattern (21.8%). Pure consolidation, solid nodules, halo sign, reverse halo sign, vascular enlargement, subpleural line, air-bronchogram, and bronchiectasis were the other findings observed in at least 15% of the cases. Halo sign, acinar nodules, air-bubble sign, pleural thickening and effusion, mediastinal and/or hilar lymphadenopathy were seen rarely (2%-12.9%). Pericardial effusion, pneumothorax, cavitation, and tree-in-bud pattern were not detected in our study group. CONCLUSION: Multifocal and bilateral GGO infiltration predominantly distributed in peripheral, posterior, and lower lung areas was the most common infiltration pattern. SN - 1305-3612 UR - https://www.unboundmedicine.com/medline/citation/32558645/CT_imaging_features_of_COVID_19_pneumonia:_initial_experience_from_Turkey_ L2 - https://doi.org/10.5152/dir.2020.20307 DB - PRIME DP - Unbound Medicine ER -