Diagnostic imaging in COVID-19 pneumonia: a literature review

J Ultrasound. 2021 Dec;24(4):383-395. doi: 10.1007/s40477-021-00559-x. Epub 2021 Feb 15.

Abstract

In December 2019 in Wuhan (China), a bat-origin coronavirus (2019-nCoV), also known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), was identified, and the World Health Organization named the related disease COVID-19. Its most severe manifestations are pneumonia, systemic and pulmonary thromboembolism, acute respiratory distress syndrome (ARDS), and respiratory failure. A swab test is considered the gold standard for the diagnosis of COVID-19 despite the high number of false negatives. Radiologists play a crucial role in the rapid identification and early diagnosis of pulmonary involvement. Lung ultrasound (LUS) and computed tomography (CT) have a high sensitivity in detecting pulmonary interstitial involvement. LUS is a low-cost and radiation-free method, which allows a bedside approach and needs disinfection of only a small contact area, so it could be particularly useful during triage and in intensive care units (ICUs). High-resolution computed tomography (HRCT) is particularly useful in evaluating disease progression or resolution, being able to identify even the smallest changes.

Keywords: COVID-19; CT; Pneumonia; SARS-CoV-2; US; Ultrasound.

Publication types

  • Review

MeSH terms

  • COVID-19 / diagnostic imaging*
  • Humans
  • Lung / diagnostic imaging*
  • Pneumonia / diagnostic imaging*
  • SARS-CoV-2
  • Ultrasonography / methods*