Chest CT features of children infected by B.1.617.2 (Delta) variant of COVID-19
Background This study aimed to explore the imaging characteristics, diversity and changing trend in CT scans of pediatric patients infected with Delta-variant strain by studying imaging features of children infected with Delta and comparing the results to those of children with original COVID-19. Me...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Cheng, Qi-Rui [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021 |
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| Schlagwörter: |
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| Anmerkung: |
© Children's Hospital, Zhejiang University School of Medicine 2021 |
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| Übergeordnetes Werk: |
Enthalten in: World Journal of Pediatrics - Springer-Verlag, 2008, 18(2021), 1 vom: 22. Nov., Seite 37-42 |
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| Übergeordnetes Werk: |
volume:18 ; year:2021 ; number:1 ; day:22 ; month:11 ; pages:37-42 |
| Links: |
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| DOI / URN: |
10.1007/s12519-021-00484-3 |
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SPR045976783 |
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| 520 | |a Background This study aimed to explore the imaging characteristics, diversity and changing trend in CT scans of pediatric patients infected with Delta-variant strain by studying imaging features of children infected with Delta and comparing the results to those of children with original COVID-19. Methods A retrospective, comparative analysis of initial chest CT manifestations between 63 pediatric patients infected with Delta variant in 2021 and 23 pediatric patients with COVID-19 in 2020 was conducted. Corresponding imaging features were analyzed. In addition, the changing trend in imaging features of COVID-19 Delta-variant cases were explored by evaluating the initial and follow-up CT scans. Results Among 63 children with Delta-variant COVID-19 in 2021, 34 (53.9%) showed positive chest CT presentation; and their CT score (1.10 ± 1.41) was significantly lower than that in 2020 (2.56 ± 3.5) (P = 0.0073). Lesion distribution: lung lesions of Delta cases appear mainly in the lower lungs on both sides. Most children had single lobe involvement (18 cases, 52.9%), 14 (41.2%) in the right lung alone, and 14 (41.2%) in both lungs. A majority of Delta cases displayed initially ground glass (23 cases, 67.6%) and nodular shadows (13 cases, 38.2%) in the first CT scan, with few extrapulmonary manifestations. The 34 children with abnormal chest CT for the first time have a total of 92 chest CT examinations. These children showed a statistically significant difference between the 0–3 day group and the 4–7 day group (P = 0.0392) and a significant difference between the 4–7 day group and the more than 8 days group (P = 0.0003). Conclusions The early manifestations of COVID-19 in children with abnormal imaging are mostly small subpleural nodular ground glass opacity. The changes on the Delta-variant COVID-19 chest CT were milder than the original strain. The lesions reached a peak on CT in 4–7 days and quickly improved and absorbed after a week. Dynamic CT re-examination can achieve a good prognosis. | ||
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10.1007/s12519-021-00484-3 doi (DE-627)SPR045976783 (SPR)s12519-021-00484-3-e DE-627 ger DE-627 rakwb eng Cheng, Qi-Rui verfasserin aut Chest CT features of children infected by B.1.617.2 (Delta) variant of COVID-19 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Children's Hospital, Zhejiang University School of Medicine 2021 Background This study aimed to explore the imaging characteristics, diversity and changing trend in CT scans of pediatric patients infected with Delta-variant strain by studying imaging features of children infected with Delta and comparing the results to those of children with original COVID-19. Methods A retrospective, comparative analysis of initial chest CT manifestations between 63 pediatric patients infected with Delta variant in 2021 and 23 pediatric patients with COVID-19 in 2020 was conducted. Corresponding imaging features were analyzed. In addition, the changing trend in imaging features of COVID-19 Delta-variant cases were explored by evaluating the initial and follow-up CT scans. Results Among 63 children with Delta-variant COVID-19 in 2021, 34 (53.9%) showed positive chest CT presentation; and their CT score (1.10 ± 1.41) was significantly lower than that in 2020 (2.56 ± 3.5) (P = 0.0073). Lesion distribution: lung lesions of Delta cases appear mainly in the lower lungs on both sides. Most children had single lobe involvement (18 cases, 52.9%), 14 (41.2%) in the right lung alone, and 14 (41.2%) in both lungs. A majority of Delta cases displayed initially ground glass (23 cases, 67.6%) and nodular shadows (13 cases, 38.2%) in the first CT scan, with few extrapulmonary manifestations. The 34 children with abnormal chest CT for the first time have a total of 92 chest CT examinations. These children showed a statistically significant difference between the 0–3 day group and the 4–7 day group (P = 0.0392) and a significant difference between the 4–7 day group and the more than 8 days group (P = 0.0003). Conclusions The early manifestations of COVID-19 in children with abnormal imaging are mostly small subpleural nodular ground glass opacity. The changes on the Delta-variant COVID-19 chest CT were milder than the original strain. The lesions reached a peak on CT in 4–7 days and quickly improved and absorbed after a week. Dynamic CT re-examination can achieve a good prognosis. B.1.617.2 (Delta) variant (dpeaa)DE-He213 Children (dpeaa)DE-He213 Coronavirus disease 2019 (COVID-19) (dpeaa)DE-He213 Chest computed tomography (CT) (dpeaa)DE-He213 Fan, Ming-Xing aut Hao, Jing aut Hu, Xiao-Chen aut Ge, Xu-Hua (orcid)0000-0002-1097-2677 aut Hu, Zhi-Liang aut Li, Zhuo aut Enthalten in World Journal of Pediatrics Springer-Verlag, 2008 18(2021), 1 vom: 22. Nov., Seite 37-42 (DE-627)SPR02598876X nnns volume:18 year:2021 number:1 day:22 month:11 pages:37-42 https://dx.doi.org/10.1007/s12519-021-00484-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_21 GBV_ILN_31 GBV_ILN_40 GBV_ILN_61 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_66 GBV_ILN_69 GBV_ILN_92 GBV_ILN_135 GBV_ILN_181 GBV_ILN_192 GBV_ILN_211 GBV_ILN_252 AR 18 2021 1 22 11 37-42 |
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10.1007/s12519-021-00484-3 doi (DE-627)SPR045976783 (SPR)s12519-021-00484-3-e DE-627 ger DE-627 rakwb eng Cheng, Qi-Rui verfasserin aut Chest CT features of children infected by B.1.617.2 (Delta) variant of COVID-19 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Children's Hospital, Zhejiang University School of Medicine 2021 Background This study aimed to explore the imaging characteristics, diversity and changing trend in CT scans of pediatric patients infected with Delta-variant strain by studying imaging features of children infected with Delta and comparing the results to those of children with original COVID-19. Methods A retrospective, comparative analysis of initial chest CT manifestations between 63 pediatric patients infected with Delta variant in 2021 and 23 pediatric patients with COVID-19 in 2020 was conducted. Corresponding imaging features were analyzed. In addition, the changing trend in imaging features of COVID-19 Delta-variant cases were explored by evaluating the initial and follow-up CT scans. Results Among 63 children with Delta-variant COVID-19 in 2021, 34 (53.9%) showed positive chest CT presentation; and their CT score (1.10 ± 1.41) was significantly lower than that in 2020 (2.56 ± 3.5) (P = 0.0073). Lesion distribution: lung lesions of Delta cases appear mainly in the lower lungs on both sides. Most children had single lobe involvement (18 cases, 52.9%), 14 (41.2%) in the right lung alone, and 14 (41.2%) in both lungs. A majority of Delta cases displayed initially ground glass (23 cases, 67.6%) and nodular shadows (13 cases, 38.2%) in the first CT scan, with few extrapulmonary manifestations. The 34 children with abnormal chest CT for the first time have a total of 92 chest CT examinations. These children showed a statistically significant difference between the 0–3 day group and the 4–7 day group (P = 0.0392) and a significant difference between the 4–7 day group and the more than 8 days group (P = 0.0003). Conclusions The early manifestations of COVID-19 in children with abnormal imaging are mostly small subpleural nodular ground glass opacity. The changes on the Delta-variant COVID-19 chest CT were milder than the original strain. The lesions reached a peak on CT in 4–7 days and quickly improved and absorbed after a week. Dynamic CT re-examination can achieve a good prognosis. B.1.617.2 (Delta) variant (dpeaa)DE-He213 Children (dpeaa)DE-He213 Coronavirus disease 2019 (COVID-19) (dpeaa)DE-He213 Chest computed tomography (CT) (dpeaa)DE-He213 Fan, Ming-Xing aut Hao, Jing aut Hu, Xiao-Chen aut Ge, Xu-Hua (orcid)0000-0002-1097-2677 aut Hu, Zhi-Liang aut Li, Zhuo aut Enthalten in World Journal of Pediatrics Springer-Verlag, 2008 18(2021), 1 vom: 22. Nov., Seite 37-42 (DE-627)SPR02598876X nnns volume:18 year:2021 number:1 day:22 month:11 pages:37-42 https://dx.doi.org/10.1007/s12519-021-00484-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_21 GBV_ILN_31 GBV_ILN_40 GBV_ILN_61 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_66 GBV_ILN_69 GBV_ILN_92 GBV_ILN_135 GBV_ILN_181 GBV_ILN_192 GBV_ILN_211 GBV_ILN_252 AR 18 2021 1 22 11 37-42 |
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10.1007/s12519-021-00484-3 doi (DE-627)SPR045976783 (SPR)s12519-021-00484-3-e DE-627 ger DE-627 rakwb eng Cheng, Qi-Rui verfasserin aut Chest CT features of children infected by B.1.617.2 (Delta) variant of COVID-19 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Children's Hospital, Zhejiang University School of Medicine 2021 Background This study aimed to explore the imaging characteristics, diversity and changing trend in CT scans of pediatric patients infected with Delta-variant strain by studying imaging features of children infected with Delta and comparing the results to those of children with original COVID-19. Methods A retrospective, comparative analysis of initial chest CT manifestations between 63 pediatric patients infected with Delta variant in 2021 and 23 pediatric patients with COVID-19 in 2020 was conducted. Corresponding imaging features were analyzed. In addition, the changing trend in imaging features of COVID-19 Delta-variant cases were explored by evaluating the initial and follow-up CT scans. Results Among 63 children with Delta-variant COVID-19 in 2021, 34 (53.9%) showed positive chest CT presentation; and their CT score (1.10 ± 1.41) was significantly lower than that in 2020 (2.56 ± 3.5) (P = 0.0073). Lesion distribution: lung lesions of Delta cases appear mainly in the lower lungs on both sides. Most children had single lobe involvement (18 cases, 52.9%), 14 (41.2%) in the right lung alone, and 14 (41.2%) in both lungs. A majority of Delta cases displayed initially ground glass (23 cases, 67.6%) and nodular shadows (13 cases, 38.2%) in the first CT scan, with few extrapulmonary manifestations. The 34 children with abnormal chest CT for the first time have a total of 92 chest CT examinations. These children showed a statistically significant difference between the 0–3 day group and the 4–7 day group (P = 0.0392) and a significant difference between the 4–7 day group and the more than 8 days group (P = 0.0003). Conclusions The early manifestations of COVID-19 in children with abnormal imaging are mostly small subpleural nodular ground glass opacity. The changes on the Delta-variant COVID-19 chest CT were milder than the original strain. The lesions reached a peak on CT in 4–7 days and quickly improved and absorbed after a week. Dynamic CT re-examination can achieve a good prognosis. B.1.617.2 (Delta) variant (dpeaa)DE-He213 Children (dpeaa)DE-He213 Coronavirus disease 2019 (COVID-19) (dpeaa)DE-He213 Chest computed tomography (CT) (dpeaa)DE-He213 Fan, Ming-Xing aut Hao, Jing aut Hu, Xiao-Chen aut Ge, Xu-Hua (orcid)0000-0002-1097-2677 aut Hu, Zhi-Liang aut Li, Zhuo aut Enthalten in World Journal of Pediatrics Springer-Verlag, 2008 18(2021), 1 vom: 22. Nov., Seite 37-42 (DE-627)SPR02598876X nnns volume:18 year:2021 number:1 day:22 month:11 pages:37-42 https://dx.doi.org/10.1007/s12519-021-00484-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_21 GBV_ILN_31 GBV_ILN_40 GBV_ILN_61 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_66 GBV_ILN_69 GBV_ILN_92 GBV_ILN_135 GBV_ILN_181 GBV_ILN_192 GBV_ILN_211 GBV_ILN_252 AR 18 2021 1 22 11 37-42 |
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10.1007/s12519-021-00484-3 doi (DE-627)SPR045976783 (SPR)s12519-021-00484-3-e DE-627 ger DE-627 rakwb eng Cheng, Qi-Rui verfasserin aut Chest CT features of children infected by B.1.617.2 (Delta) variant of COVID-19 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Children's Hospital, Zhejiang University School of Medicine 2021 Background This study aimed to explore the imaging characteristics, diversity and changing trend in CT scans of pediatric patients infected with Delta-variant strain by studying imaging features of children infected with Delta and comparing the results to those of children with original COVID-19. Methods A retrospective, comparative analysis of initial chest CT manifestations between 63 pediatric patients infected with Delta variant in 2021 and 23 pediatric patients with COVID-19 in 2020 was conducted. Corresponding imaging features were analyzed. In addition, the changing trend in imaging features of COVID-19 Delta-variant cases were explored by evaluating the initial and follow-up CT scans. Results Among 63 children with Delta-variant COVID-19 in 2021, 34 (53.9%) showed positive chest CT presentation; and their CT score (1.10 ± 1.41) was significantly lower than that in 2020 (2.56 ± 3.5) (P = 0.0073). Lesion distribution: lung lesions of Delta cases appear mainly in the lower lungs on both sides. Most children had single lobe involvement (18 cases, 52.9%), 14 (41.2%) in the right lung alone, and 14 (41.2%) in both lungs. A majority of Delta cases displayed initially ground glass (23 cases, 67.6%) and nodular shadows (13 cases, 38.2%) in the first CT scan, with few extrapulmonary manifestations. The 34 children with abnormal chest CT for the first time have a total of 92 chest CT examinations. These children showed a statistically significant difference between the 0–3 day group and the 4–7 day group (P = 0.0392) and a significant difference between the 4–7 day group and the more than 8 days group (P = 0.0003). Conclusions The early manifestations of COVID-19 in children with abnormal imaging are mostly small subpleural nodular ground glass opacity. The changes on the Delta-variant COVID-19 chest CT were milder than the original strain. The lesions reached a peak on CT in 4–7 days and quickly improved and absorbed after a week. Dynamic CT re-examination can achieve a good prognosis. B.1.617.2 (Delta) variant (dpeaa)DE-He213 Children (dpeaa)DE-He213 Coronavirus disease 2019 (COVID-19) (dpeaa)DE-He213 Chest computed tomography (CT) (dpeaa)DE-He213 Fan, Ming-Xing aut Hao, Jing aut Hu, Xiao-Chen aut Ge, Xu-Hua (orcid)0000-0002-1097-2677 aut Hu, Zhi-Liang aut Li, Zhuo aut Enthalten in World Journal of Pediatrics Springer-Verlag, 2008 18(2021), 1 vom: 22. Nov., Seite 37-42 (DE-627)SPR02598876X nnns volume:18 year:2021 number:1 day:22 month:11 pages:37-42 https://dx.doi.org/10.1007/s12519-021-00484-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_21 GBV_ILN_31 GBV_ILN_40 GBV_ILN_61 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_66 GBV_ILN_69 GBV_ILN_92 GBV_ILN_135 GBV_ILN_181 GBV_ILN_192 GBV_ILN_211 GBV_ILN_252 AR 18 2021 1 22 11 37-42 |
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10.1007/s12519-021-00484-3 doi (DE-627)SPR045976783 (SPR)s12519-021-00484-3-e DE-627 ger DE-627 rakwb eng Cheng, Qi-Rui verfasserin aut Chest CT features of children infected by B.1.617.2 (Delta) variant of COVID-19 2021 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Children's Hospital, Zhejiang University School of Medicine 2021 Background This study aimed to explore the imaging characteristics, diversity and changing trend in CT scans of pediatric patients infected with Delta-variant strain by studying imaging features of children infected with Delta and comparing the results to those of children with original COVID-19. Methods A retrospective, comparative analysis of initial chest CT manifestations between 63 pediatric patients infected with Delta variant in 2021 and 23 pediatric patients with COVID-19 in 2020 was conducted. Corresponding imaging features were analyzed. In addition, the changing trend in imaging features of COVID-19 Delta-variant cases were explored by evaluating the initial and follow-up CT scans. Results Among 63 children with Delta-variant COVID-19 in 2021, 34 (53.9%) showed positive chest CT presentation; and their CT score (1.10 ± 1.41) was significantly lower than that in 2020 (2.56 ± 3.5) (P = 0.0073). Lesion distribution: lung lesions of Delta cases appear mainly in the lower lungs on both sides. Most children had single lobe involvement (18 cases, 52.9%), 14 (41.2%) in the right lung alone, and 14 (41.2%) in both lungs. A majority of Delta cases displayed initially ground glass (23 cases, 67.6%) and nodular shadows (13 cases, 38.2%) in the first CT scan, with few extrapulmonary manifestations. The 34 children with abnormal chest CT for the first time have a total of 92 chest CT examinations. These children showed a statistically significant difference between the 0–3 day group and the 4–7 day group (P = 0.0392) and a significant difference between the 4–7 day group and the more than 8 days group (P = 0.0003). Conclusions The early manifestations of COVID-19 in children with abnormal imaging are mostly small subpleural nodular ground glass opacity. The changes on the Delta-variant COVID-19 chest CT were milder than the original strain. The lesions reached a peak on CT in 4–7 days and quickly improved and absorbed after a week. Dynamic CT re-examination can achieve a good prognosis. B.1.617.2 (Delta) variant (dpeaa)DE-He213 Children (dpeaa)DE-He213 Coronavirus disease 2019 (COVID-19) (dpeaa)DE-He213 Chest computed tomography (CT) (dpeaa)DE-He213 Fan, Ming-Xing aut Hao, Jing aut Hu, Xiao-Chen aut Ge, Xu-Hua (orcid)0000-0002-1097-2677 aut Hu, Zhi-Liang aut Li, Zhuo aut Enthalten in World Journal of Pediatrics Springer-Verlag, 2008 18(2021), 1 vom: 22. Nov., Seite 37-42 (DE-627)SPR02598876X nnns volume:18 year:2021 number:1 day:22 month:11 pages:37-42 https://dx.doi.org/10.1007/s12519-021-00484-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_21 GBV_ILN_31 GBV_ILN_40 GBV_ILN_61 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_66 GBV_ILN_69 GBV_ILN_92 GBV_ILN_135 GBV_ILN_181 GBV_ILN_192 GBV_ILN_211 GBV_ILN_252 AR 18 2021 1 22 11 37-42 |
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Methods A retrospective, comparative analysis of initial chest CT manifestations between 63 pediatric patients infected with Delta variant in 2021 and 23 pediatric patients with COVID-19 in 2020 was conducted. Corresponding imaging features were analyzed. In addition, the changing trend in imaging features of COVID-19 Delta-variant cases were explored by evaluating the initial and follow-up CT scans. Results Among 63 children with Delta-variant COVID-19 in 2021, 34 (53.9%) showed positive chest CT presentation; and their CT score (1.10 ± 1.41) was significantly lower than that in 2020 (2.56 ± 3.5) (P = 0.0073). Lesion distribution: lung lesions of Delta cases appear mainly in the lower lungs on both sides. Most children had single lobe involvement (18 cases, 52.9%), 14 (41.2%) in the right lung alone, and 14 (41.2%) in both lungs. A majority of Delta cases displayed initially ground glass (23 cases, 67.6%) and nodular shadows (13 cases, 38.2%) in the first CT scan, with few extrapulmonary manifestations. The 34 children with abnormal chest CT for the first time have a total of 92 chest CT examinations. These children showed a statistically significant difference between the 0–3 day group and the 4–7 day group (P = 0.0392) and a significant difference between the 4–7 day group and the more than 8 days group (P = 0.0003). Conclusions The early manifestations of COVID-19 in children with abnormal imaging are mostly small subpleural nodular ground glass opacity. The changes on the Delta-variant COVID-19 chest CT were milder than the original strain. The lesions reached a peak on CT in 4–7 days and quickly improved and absorbed after a week. 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Cheng, Qi-Rui |
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Chest CT features of children infected by B.1.617.2 (Delta) variant of COVID-19 |
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Background This study aimed to explore the imaging characteristics, diversity and changing trend in CT scans of pediatric patients infected with Delta-variant strain by studying imaging features of children infected with Delta and comparing the results to those of children with original COVID-19. Methods A retrospective, comparative analysis of initial chest CT manifestations between 63 pediatric patients infected with Delta variant in 2021 and 23 pediatric patients with COVID-19 in 2020 was conducted. Corresponding imaging features were analyzed. In addition, the changing trend in imaging features of COVID-19 Delta-variant cases were explored by evaluating the initial and follow-up CT scans. Results Among 63 children with Delta-variant COVID-19 in 2021, 34 (53.9%) showed positive chest CT presentation; and their CT score (1.10 ± 1.41) was significantly lower than that in 2020 (2.56 ± 3.5) (P = 0.0073). Lesion distribution: lung lesions of Delta cases appear mainly in the lower lungs on both sides. Most children had single lobe involvement (18 cases, 52.9%), 14 (41.2%) in the right lung alone, and 14 (41.2%) in both lungs. A majority of Delta cases displayed initially ground glass (23 cases, 67.6%) and nodular shadows (13 cases, 38.2%) in the first CT scan, with few extrapulmonary manifestations. The 34 children with abnormal chest CT for the first time have a total of 92 chest CT examinations. These children showed a statistically significant difference between the 0–3 day group and the 4–7 day group (P = 0.0392) and a significant difference between the 4–7 day group and the more than 8 days group (P = 0.0003). Conclusions The early manifestations of COVID-19 in children with abnormal imaging are mostly small subpleural nodular ground glass opacity. The changes on the Delta-variant COVID-19 chest CT were milder than the original strain. The lesions reached a peak on CT in 4–7 days and quickly improved and absorbed after a week. Dynamic CT re-examination can achieve a good prognosis. © Children's Hospital, Zhejiang University School of Medicine 2021 |
| abstractGer |
Background This study aimed to explore the imaging characteristics, diversity and changing trend in CT scans of pediatric patients infected with Delta-variant strain by studying imaging features of children infected with Delta and comparing the results to those of children with original COVID-19. Methods A retrospective, comparative analysis of initial chest CT manifestations between 63 pediatric patients infected with Delta variant in 2021 and 23 pediatric patients with COVID-19 in 2020 was conducted. Corresponding imaging features were analyzed. In addition, the changing trend in imaging features of COVID-19 Delta-variant cases were explored by evaluating the initial and follow-up CT scans. Results Among 63 children with Delta-variant COVID-19 in 2021, 34 (53.9%) showed positive chest CT presentation; and their CT score (1.10 ± 1.41) was significantly lower than that in 2020 (2.56 ± 3.5) (P = 0.0073). Lesion distribution: lung lesions of Delta cases appear mainly in the lower lungs on both sides. Most children had single lobe involvement (18 cases, 52.9%), 14 (41.2%) in the right lung alone, and 14 (41.2%) in both lungs. A majority of Delta cases displayed initially ground glass (23 cases, 67.6%) and nodular shadows (13 cases, 38.2%) in the first CT scan, with few extrapulmonary manifestations. The 34 children with abnormal chest CT for the first time have a total of 92 chest CT examinations. These children showed a statistically significant difference between the 0–3 day group and the 4–7 day group (P = 0.0392) and a significant difference between the 4–7 day group and the more than 8 days group (P = 0.0003). Conclusions The early manifestations of COVID-19 in children with abnormal imaging are mostly small subpleural nodular ground glass opacity. The changes on the Delta-variant COVID-19 chest CT were milder than the original strain. The lesions reached a peak on CT in 4–7 days and quickly improved and absorbed after a week. Dynamic CT re-examination can achieve a good prognosis. © Children's Hospital, Zhejiang University School of Medicine 2021 |
| abstract_unstemmed |
Background This study aimed to explore the imaging characteristics, diversity and changing trend in CT scans of pediatric patients infected with Delta-variant strain by studying imaging features of children infected with Delta and comparing the results to those of children with original COVID-19. Methods A retrospective, comparative analysis of initial chest CT manifestations between 63 pediatric patients infected with Delta variant in 2021 and 23 pediatric patients with COVID-19 in 2020 was conducted. Corresponding imaging features were analyzed. In addition, the changing trend in imaging features of COVID-19 Delta-variant cases were explored by evaluating the initial and follow-up CT scans. Results Among 63 children with Delta-variant COVID-19 in 2021, 34 (53.9%) showed positive chest CT presentation; and their CT score (1.10 ± 1.41) was significantly lower than that in 2020 (2.56 ± 3.5) (P = 0.0073). Lesion distribution: lung lesions of Delta cases appear mainly in the lower lungs on both sides. Most children had single lobe involvement (18 cases, 52.9%), 14 (41.2%) in the right lung alone, and 14 (41.2%) in both lungs. A majority of Delta cases displayed initially ground glass (23 cases, 67.6%) and nodular shadows (13 cases, 38.2%) in the first CT scan, with few extrapulmonary manifestations. The 34 children with abnormal chest CT for the first time have a total of 92 chest CT examinations. These children showed a statistically significant difference between the 0–3 day group and the 4–7 day group (P = 0.0392) and a significant difference between the 4–7 day group and the more than 8 days group (P = 0.0003). Conclusions The early manifestations of COVID-19 in children with abnormal imaging are mostly small subpleural nodular ground glass opacity. The changes on the Delta-variant COVID-19 chest CT were milder than the original strain. The lesions reached a peak on CT in 4–7 days and quickly improved and absorbed after a week. Dynamic CT re-examination can achieve a good prognosis. © Children's Hospital, Zhejiang University School of Medicine 2021 |
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A majority of Delta cases displayed initially ground glass (23 cases, 67.6%) and nodular shadows (13 cases, 38.2%) in the first CT scan, with few extrapulmonary manifestations. The 34 children with abnormal chest CT for the first time have a total of 92 chest CT examinations. These children showed a statistically significant difference between the 0–3 day group and the 4–7 day group (P = 0.0392) and a significant difference between the 4–7 day group and the more than 8 days group (P = 0.0003). Conclusions The early manifestations of COVID-19 in children with abnormal imaging are mostly small subpleural nodular ground glass opacity. The changes on the Delta-variant COVID-19 chest CT were milder than the original strain. The lesions reached a peak on CT in 4–7 days and quickly improved and absorbed after a week. 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