HRCT Spectrum in Post Vaccination COVID Positive Patients.

SUSHIL KACHEWAR, Dr Smita Kachewar



To analyse the spectrum of findings as seen on HRCT in COVID Positive Patients who have turned positive inspite of Vaccination.


Materials and methods:

The different patterns of findings seen on HRCT in 100 patients who had been vaccinated with recent COVID vaccines but still got infected with SARS-CoV-2 as detected by RT PCR / RAPID antigen test were analysed retrospectively. Scoring of the findings was also done.



No positive findings to suggest any Lung involvement were seen in 52 % of cases. Only ground-glass opacities (GGO) were seen in 18 % cases.

GGO and crazy-paving patterns were seen in 11 % cases.

GGO and reticulations were seen 09 % cases.

Only Consolidations were seen in 05 % cases.

Consolidations undergoing cavitation in 02 % cases.

GGO and Pneumomediastinum in 01 % cases.

GGO, Pneumothorax and Pneumomediastinum in 01 % cases.

GGO Reticulations and Pleural Effusion were seen in 01 %.

CT Severity score was 00/ 25 in 52 % cases, up to 05/25 in 35 %, 04-09/ 25 in 06 % and 10-15/25 in 05 % and 20/25 in 02%.


Post vaccination Covid positives were seen more in younger population. The elderly patients were found to be less infected in this scenario of COVID 2.0. Normal HRCT scans were more common in these cases. Amongst the positive HRCT scans of such cases, mild findings of ground glass opacifications were the most predominant.


Full Text:



WHO Coronavirus Disease (COVID-19) Dashboard | WHO Coronavirus Disease (COVID-19) Dashboard [Internet]. [cited 2021 May 29]. Available from:

COVID-19 Tracker Updates For India For State Wise & District Wise Data [Internet]. [cited 2021 May 29]. Available from:

World Health Organization. Use of chest imaging in COVID-19. 2020;1–56. Available from:

Fang Y, Zhang H, Xie J, Lin M, Ying L, Pang P, et al. Sensitivity of Chest CT for COVID-19: Comparison to RT-PCR. Radiology [Internet]. 2020 [cited 2020 Dec 9];296(2):E115–7. Available from:

Ai T, Yang Z, Hou H, Zhan C, Chen C, Lv W, et al. Correlation of Chest CT and RT-PCR Testing for Coronavirus Disease 2019 (COVID-19) in China: A Report of 1014 Cases. Radiology. 2020;296(2):E32–40.

Kalra MK, Maher MM, Rizzo S, Kanarek D, Shepard J-AO, Shephard J-AO. Radiation exposure from chest CT: issues and strategies. J Korean Med Sci [Internet]. 2004 Apr [cited 2020 Dec 9];19(2):159–66. Available from:

Hansell DM, Bankier AA, MacMahon H, McLoud TC, Müller NL, Remy J. Fleischner Society: Glossary of terms for thoracic imaging. Radiology. 2008;246(3):697–722.

Zhou S, Zhu T, Wang Y, Xia LM. Imaging features and evolution on CT in 100 COVID-19 pneumonia patients in Wuhan, China. Eur Radiol. 2020;30(10):5446–54.

Wang Y, Dong C, Hu Y, Li C, Ren Q, Zhang X, et al. Temporal Changes of CT Findings in 90 Patients with COVID-19 Pneumonia: A Longitudinal Study. Radiology. 2020;296(2):E55–64.

Zhou S, Wang Y, Zhu T, Xia L. CT features of coronavirus disease 2019 (COVID-19) pneumonia in 62 patients in Wuhan, China. Am J Roentgenol. 2020;214(6):1287–94.

Parry AH, Wani AH, Yaseen M, Dar KA, Choh NA, Khan NA, et al. Spectrum of chest computed tomographic (CT) findings in coronavirus disease-19 (COVID-19) patients in India. Eur J Radiol [Internet]. 2020;129(April):109147. Available from:

Ojha V, Mani A, Pandey NN, Sharma S, Kumar S. CT in coronavirus disease 2019 (COVID-19): a systematic review of chest CT findings in 4410 adult patients. Eur Radiol. 2020;30(11):6129–38.

F P, T Y, P S, S G, B L, L L, et al. Time Course of Lung Changes at Chest CT during Recovery from Coronavirus Disease 2019 (COVID-19). Radiology [Internet]. 2020 [cited 2020 Dec 15];295(3). Available from:

Coronavirus disease (COVID-19): Vaccines safety (

Zhu T, Wang Y, Zhou S, Zhang N, Xia L. A Comparative Study of Chest Computed Tomography Features in Young and Older Adults with Corona Virus Disease (COVID-19). J Thorac Imaging. 2020;35(4):W97–101.

Salcin S, Fontem F. Recurrent SARS-CoV-2 infection resulting in acute respiratory distress syndrome and development of pulmonary hypertension: A case report. Respir Med Case Rep. 2021;33:101314. doi: 10.1016/j.rmcr.2020.101314. Epub 2020 Dec 5. PMID: 33312856; PMCID: PMC7718582.


  • There are currently no refbacks.

© Copyright PJR 2008-