Complementary Findings of 18 F-FDG and 68 Ga-FAPI-46 PET/CT in a Chronic Left Ventricular Aneurysm.
case_report · Level V
Where this comes from
- Record sourced from PubMed, PMID 42341206.
- Also identified by DOI 10.1097/RLU.0000000000006581.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
A 72-year-old man with a history of apical myocardial infarction 12 years earlier, complicated by a chronic left ventricular aneurysm, underwent 18 F-FDG PET/CT and 68 Ga-FAPI-46 PET/CT imaging. 18 F-FDG PET/CT, performed without cardiac preparation, showed a well-defined photopenic defect corresponding to the aneurysm, consistent with a nonviable transmural scar. In contrast, 68 Ga-FAPI PET/CT demonstrated intense uptake along the aneurysmal wall with a ring-like pattern at the basal border zone. This discordant pattern suggests persistent fibroblast activation despite metabolic quiescence, indicating that chronic ventricular aneurysms may remain biologically active rather than inert fibrotic sequelae.
Medical subject headings
- Positron Emission Tomography Computed Tomography
- Fluorodeoxyglucose F18
- Heart Ventricles
- Heart Aneurysm