Comparison of Anatomic and Functional Imaging Modalities for Imaging Cardiovascular Device Infection
Modality | Pros | Cons |
TEE/TTE | Provides first-line imaging for infective endocarditis | Shadows artifacts/misses lesions |
Detects vegetation and perivalvular complications | Cannot differentiate infectious from noninfected vegetation | |
Assesses valvular function | Cannot evaluate right-side heart and chest wall CIED pocket and leads | |
Predicts embolic risk | ||
Cardiac CT | Provides first-line imaging for infective endocarditis | Has metallic artifacts, nonspecific findings |
Detects large vegetation | Is less sensitive for small vegetation | |
Is better than TEE for perivalvular complication evaluation | Is not for extrathoracic evaluation | |
Detects chest wall CIED infection | ||
18F-FDG PET/CT | Has high imaging sensitivity | Provides false-positive findings for inflammation |
Provides earlier diagnosis | Is less sensitive for small vegetation | |
Assesses extracardiac infection | ||
Provides a signal of host immune response | ||
WBC scan | Has high specificity | Has moderate sensitivity |
Assesses extracardiac infection | Is labor-intensive |
TEE/TTE: Transesophageal/transthoracic echocardiography; CIED: Cardiac implantable electronic device.