Bivalent mRNA COVID-19 Vaccine-Related Pericarditis on 18 F-FDG PET/CT
Yu-Chin Wu, Chia-Hung Kao, Chiung-Wei Liao1
1From the Department of Nuclear Medicine and PET Center, China Medical University Hospital, Taichung City.
Insights
A 13-year-old boy developed pericarditis after a bivalent mRNA COVID-19 vaccine booster. 18F-FDG PET/CT imaging, aided by a special diet, confirmed pericarditis and lymphadenopathy without interfering with cardiac uptake.
Area of Science:
- Cardiology
- Nuclear Medicine
- Vaccinology
Background:
- Myocardial uptake of 18F-FDG can interfere with pericarditis detection using PET/CT.
- Bivalent mRNA COVID-19 vaccines are widely administered, necessitating understanding of potential adverse effects.
Observation:
- A 13-year-old male presented with suspected pericarditis post-bivalent mRNA COVID-19 vaccination.
- Preparation involved a carbohydrate-free, high-fat diet to suppress physiological myocardial 18F-FDG uptake.
Findings:
- 18F-FDG PET/CT imaging successfully identified pericarditis.
- Simultaneously, vaccination-related axillary lymphadenopathy was visualized.
- The dietary preparation effectively minimized physiological myocardial uptake, allowing clear visualization of pathology.
Implications:
- This case highlights a potential diagnostic approach for vaccine-associated pericarditis using 18F-FDG PET/CT.
- The findings suggest that dietary modifications can optimize imaging for cardiac inflammation.
- Further research may explore this technique for evaluating other vaccine-related cardiac adverse events.
Abstract:
A 13-year-old boy was suspected with pericarditis after a second booster dose of bivalent mRNA COVID-19 vaccine. After specific preparation for cardiac inflammation with carbohydrate-free, high-fat diet, the 18 F-FDG PET/CT successfully demonstrated simultaneous presentation of vaccination-related axillary lymphadenopathy and pericarditis without the interference of physiological myocardial uptake.
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