Imran Ullah, Ummara Siddique, Wajeeha Qayyum, Aman Nawaz, Laraib Saeed, Shaheen Ali Khan

The Diagnostic Value of High Resolution Computerized Tomography (HRCT) Scan Chest in Corona Virus Disease 2019

Imran Ullah, Ummara Siddique, Wajeeha Qayyum, Aman Nawaz, Laraib Saeed, Shaheen Ali Khan



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Abstract

Aim: Role of CT scan Chest as a diagnostic tool for Covid 19 infection

Methodology: This cross sectional study was conducted in Rehman Medical Institute, Peshawar from April 2020 to July 2020 after taking Ethical approval. Covid positive patients who underwent RT-PCR on nasopharyngeal swab and HRCT were included in study during 3 months. Informed written consent was taken. Patient’s demographics, duration of illness, PCR results, HRCT findings were noted in pre designed proforma.

Results: 136 patients were included in the study. Mean age of patients was 54.6±14.01. Males were predominant i.e. 107(78.7%). RT-PCR on nasopharyngeal sample was positive in 69(50.7%) cases. HRCT chest described the typical findings of Covid 19 infection in 112(82.4%) cases. Most commonly was GGO that accounted for 120(88.9%). The findings were mostly in basal and peripheral lung fields and affected bilaterally in all cases. Sensitivity, specificity and accuracy of HRCT were 94.2%, 29.9% and 62.5% respectively.

Conclusion: HRCT chest has higher sensitivity; but specificity is low. HRCT chest is the useful diagnostic tool as a fast, convenient and reliable mode for rapid diagnosis and management.

Keywords: Sensitivity, Accuracy, Pandemic



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