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18F-FDG-PET/CT in SARS-CoV-2 infection and its sequelae

B Rodríguez-Alfonso1, S Ruiz Solís2, L Silva-Hernández3

  • 1Servicio de Medicina Nuclear del Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain.

Revista Espanola De Medicina Nuclear E Imagen Molecular
|August 3, 2021
PubMed

Insights

This review explores 18F-FDG-PET/CT imaging in COVID-19, covering acute infection, long COVID-19, and post-vaccination effects. It highlights the evolving role of this imaging technique in understanding SARS-CoV-2 impacts.

Area of Science:

  • Nuclear Medicine
  • Infectious Diseases
  • Radiology

Background:

  • Scientific efforts on SARS-CoV-2 infection are ongoing, yet many aspects remain unknown.
  • SARS-CoV-2 damage is multifactorial, extending beyond acute lung inflammation to complications and sequelae.
  • Previous knowledge of 18F-FDG-PET/CT in acute SARS-CoV-2 infection was limited to incidental findings.

Purpose of the Study:

  • To review the literature on 18F-FDG-PET/CT findings in acute SARS-CoV-2 infection, long COVID-19, and post-vaccination states.
  • To present preliminary institutional experience with 18F-FDG-PET/CT in these contexts.
  • To consolidate current understanding of metabolic alterations associated with SARS-CoV-2.

Main Methods:

  • Literature review of studies utilizing 18F-FDG-PET/CT in SARS-CoV-2 infection.
  • Analysis of findings related to acute COVID-19, persistent symptoms (long COVID-19), and vaccination.
  • Inclusion of preliminary data from the authors' institution.

Main Results:

  • Limited data exists on 18F-FDG-PET/CT in acute SARS-CoV-2, often incidental.
  • Emerging studies report 18F-FDG-PET/CT findings in long COVID-19 and post-vaccination metabolic alterations.
  • Preliminary experience suggests potential utility in evaluating persistent symptoms.

Conclusions:

  • 18F-FDG-PET/CT is increasingly recognized for its role in evaluating SARS-CoV-2 related conditions beyond the acute phase.
  • Further research is needed to fully elucidate the diagnostic and prognostic value of 18F-FDG-PET/CT in long COVID-19 and post-vaccination scenarios.
  • This review synthesizes current knowledge and highlights areas for future investigation.
Keywords:
(18)F-FDG-PET/CT(18)F-FDG-PET/TCCOVID-19 persistenteInflamaciónInflammationLong COVID-19SARS-CoV-2VaccineVacuna

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