A study published in Scientific Reports has found that the type of COVID-19 vaccine and the time interval between vaccination and PET/CT scans are important factors in minimizing false interpretations in cancer patients. The study examined systemic response changes in patients after receiving three different vaccines and discovered that different vaccines cause different metabolic changes. This knowledge is crucial for clinicians, especially in therapy evaluation, as COVID-19 vaccines can cause lymph node activity that may mimic metastasis in cancer patients. The study analyzed data from 220 vaccinated cancer patients who underwent PET/CT scans and found that the standardized uptake value ratio of axillary lymph node activity was slightly higher in patients who received the Moderna vaccine compared to the Pfizer-BioNTech and AstraZeneca vaccines. The FDG activity in axillary lymph nodes decreased steadily in all patients after Pfizer-BioNTech vaccinations. The peak activity occurred at different times for Moderna and AstraZeneca vaccinations. The study emphasizes the importance of understanding the changes in PET/CT scans in lymph nodes and reference organs after vaccination for accurate interpretation in vaccinated patients.
Wed, 13 Dec 2023 08:23:20 GMT | AuntMinnie