European Journal of Molecular & Clinical Medicine

Abstract

Background:Coronavirus Disease 2019 (COVID-19) is caused by a novel corona virus
called SARS-CoV. Reverse transcription–polymerase chain reaction (RT-PCR) test
remains the reference standard to make a definitive diagnosis. However few COVID-19
patients with pulmonary involvement on computed tomography have negative results of
RT-PCR, owing to limitation of nucleic acid detection technologies, sampling errors and
low virus load. Therefore, the aim of this study was to analyse the key features of HRCT
imaging in patients with COVID 19. Aims and objectives: To study various HRCT
findings in COVID 19 patients.
Materials and Methods: A descriptive study was done from January 2021 to June 2021
at department of Respiratory medicine at tertiary care hospital in Mysore. The study
included 100 patients who were laboratory confirmed cases of Covid 19 and who were
subjected to HRCT chest as per guidelines.
Results: In our study, we found that, 24 (24%) patients had 0 lobe involvement and the
rest 75 (75%) had at least one lobe being involved. 48 (48%) patients had all 5 lobes
involved. Of the 76 patients, who had abnormality in HRCT, showed sub pleural 48
(63.1%) involvement, Centro parenchymal involvement in 2 (2.6%), both were involved
in 26 (34.2%).The most common pattern being GGOs with or without consolidation
with a total distribution of (71%), other findings included to be interseptal thickening
[22%], pure consolidation with air bronchogram [8%], nodular thickening [3%],
cavities [3%].
Conclusion: Presence of GGO with or without consolidation should be considered as a
strong suspicion of COVID 19 and patients be treated accordingly.