tetano
Editor, Senior Moderator
Clin Imaging
. 2021 Jan 30;77:37-42.
doi: 10.1016/j.clinimag.2021.01.030. Online ahead of print.
Chest CT findings in RT-PCR positive asymptomatic COVID-19 patients
Emine Uysal[SUP] 1 [/SUP], Abidin Kilin?er[SUP] 2 [/SUP], Hakan Cebeci[SUP] 2 [/SUP], Halil ?zer[SUP] 2 [/SUP], Nazlım Aktuğ Demir[SUP] 3 [/SUP], Mehmet ?zt?rk[SUP] 2 [/SUP], Mustafa Koplay[SUP] 2 [/SUP]
Affiliations
Abstract
Purpose: To investigate chest computed tomography (CT) findings in asymptomatic patients tested positive for coronavirus disease (COVID-19) by reverse transcription-polymerase chain reaction (RT-PCR).
Material and methods: The chest CT images of 64 patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) who were RT-PCR test-positive but asymptomatic were retrospectively evaluated for the appearance and distribution of abnormal parenchymal findings.
Results: Of the 64 patients (mean age 59.4 ? 12; range 23-85), 42 (65%) were female, and 22 (35%) were male, and 16 (25%) of the patients had no abnormal findings on chest CT. Of the remaining 48 patients, lung involvement was bilateral in 32 (67%). Right upper lobe in 26 (54%), right middle lobe in 20 (42%), right lower lobe in 38 (79%), left upper lobe in 27 (56%), and left lower lobe were affected in 34 (71%) patients. The mean number of opacities detected in patients was 7.5 ? 5.7. The opacities were located only peripherally/subpleural in 22 (46%), only centrally/peribronchovascular in 5 (10%), and mixed in 21 (44%) patients. The frequency of pure ground glass opacities (GGO) was 63% GGO with a crazy-paving pattern or consolidation was 33%. Pure consolidation was detected in only two (4%) patients. Parenchymal opacities were only round in 27 (56%), only geographic demarcated in 3 (6%), only patchy in 2 (4%), and mixed in 16 (33%) patients.
Conclusion: Chest CT was normal in only one-quarter of the asymptomatic patients. CT findings in asymptomatic COVID-19 patients were often peripherally located, mostly round-shaped GGO.
Keywords: Asymptomatic; COVID-19; Computed tomography; Coronavirus disease; SARS-CoV-2.
. 2021 Jan 30;77:37-42.
doi: 10.1016/j.clinimag.2021.01.030. Online ahead of print.
Chest CT findings in RT-PCR positive asymptomatic COVID-19 patients
Emine Uysal[SUP] 1 [/SUP], Abidin Kilin?er[SUP] 2 [/SUP], Hakan Cebeci[SUP] 2 [/SUP], Halil ?zer[SUP] 2 [/SUP], Nazlım Aktuğ Demir[SUP] 3 [/SUP], Mehmet ?zt?rk[SUP] 2 [/SUP], Mustafa Koplay[SUP] 2 [/SUP]
Affiliations
- PMID: 33640789
- DOI: 10.1016/j.clinimag.2021.01.030
Abstract
Purpose: To investigate chest computed tomography (CT) findings in asymptomatic patients tested positive for coronavirus disease (COVID-19) by reverse transcription-polymerase chain reaction (RT-PCR).
Material and methods: The chest CT images of 64 patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) who were RT-PCR test-positive but asymptomatic were retrospectively evaluated for the appearance and distribution of abnormal parenchymal findings.
Results: Of the 64 patients (mean age 59.4 ? 12; range 23-85), 42 (65%) were female, and 22 (35%) were male, and 16 (25%) of the patients had no abnormal findings on chest CT. Of the remaining 48 patients, lung involvement was bilateral in 32 (67%). Right upper lobe in 26 (54%), right middle lobe in 20 (42%), right lower lobe in 38 (79%), left upper lobe in 27 (56%), and left lower lobe were affected in 34 (71%) patients. The mean number of opacities detected in patients was 7.5 ? 5.7. The opacities were located only peripherally/subpleural in 22 (46%), only centrally/peribronchovascular in 5 (10%), and mixed in 21 (44%) patients. The frequency of pure ground glass opacities (GGO) was 63% GGO with a crazy-paving pattern or consolidation was 33%. Pure consolidation was detected in only two (4%) patients. Parenchymal opacities were only round in 27 (56%), only geographic demarcated in 3 (6%), only patchy in 2 (4%), and mixed in 16 (33%) patients.
Conclusion: Chest CT was normal in only one-quarter of the asymptomatic patients. CT findings in asymptomatic COVID-19 patients were often peripherally located, mostly round-shaped GGO.
Keywords: Asymptomatic; COVID-19; Computed tomography; Coronavirus disease; SARS-CoV-2.