Electrical impedance tomography clues to detect pulmonary thrombosis in a teenager with COVID-19

Pediatr Radiol. 2022 Jan;52(1):144-147. doi: 10.1007/s00247-021-05199-1. Epub 2021 Sep 24.

Abstract

We report a case of pulmonary thrombosis in a teenager during a hypercoagulable state associated with COVID-19 (coronavirus disease 2019) caused by SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2). A condition rare in children and adolescents, pulmonary thrombosis underdiagnosis likely increases morbidity and mortality. A pulmonary thrombosis diagnosis requires a high level of suspicion and relies on the combination of clinical presentation, D-dimer elevation, and computed tomography (CT) pulmonary angiography or ventilation/perfusion scans, imaging techniques that are difficult to perform. Electrical impedance tomography (EIT) has gained attention, as it provides real-time ventilation distribution analysis. In addition, lung pulsatility images can be obtained through this technique using electrocardiogram gating to filter out ventilation. In this case report, the reduced EIT pulsatility corresponded to the perfusion defect found on the CT scan, information that was obtained at the bedside without radiation or contrast exposure.

Keywords: Children; Coronavirus disease 2019; Electrical impedance tomography; Lung; Pulmonary thrombosis.

Publication types

  • Case Reports

MeSH terms

  • Adolescent
  • COVID-19*
  • Child
  • Electric Impedance
  • Humans
  • Lung
  • Pulmonary Ventilation
  • SARS-CoV-2
  • Tomography
  • Tomography, X-Ray Computed
  • Venous Thrombosis*