European Journal of Cardiovascular Medicine

Background: High Resolution CT has a potential role in the diagnosis, detection of complications and in predicting clinical recovery of patients or progression of coronavirus disease 2019. Degree and severity of lung involvement can be assessed by 25 point CT severity score. This quantification plays an important role to modify the treatment plan at times in critically ill patients of COVID-19. Objectives: The purpose of the present study is to characterize the typical & atypical HRCT imaging features in patients with COVID-19 infection and to additionally establish a correlation between the CT severity score & clinical lab parameters to facilitate an expeditious management protocol. Materials & Methods: A prospective observation study of 2years duration including 75 patients with RTPCR positive proven COVID-19 disease were evaluated with HRCT and the findings were systematically documented and analysed by experienced radiologists. Results: >90% participants were found to have ground glass opacities  (GGO) on Chest CT,76%hadGGOwithsmoothinterlobularseptalthickening; whereas 64% had GGO with smooth intra lobular septalthickening.54.7% (41/75) patients had severe grade of Covid Pneumonia; followed by moderate(26;34.7) and mild (8; 10.6%). There is positive correlation of Chest CT severity scores with urea, D-dimer, CRP, IL-6 , TLC and ferritin. Conclusion: Better understanding of spectrum of CT findings in COVID-19 pneumonia may help to reach accurate diagnosis in clinically and laboratory equivocal cases. It also aids in prognostication of clinically ill cases and cases with co-morbidities.