Multimodality imaging to distinguish between benign and malignant cardiac masses

Area of Science:

• Cardiovascular Imaging
• Nuclear Medicine
• Oncology

Background:

• Cardiac masses require accurate differentiation between benign and malignant types.
• Cardiac Magnetic Resonance (CMR) and Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography (FDG-PET/CT) are advanced imaging modalities.
• Assessing the diagnostic performance and combined utility of CMR and FDG-PET/CT for cardiac masses is crucial.

Purpose of the Study:

• To compare the diagnostic accuracy of CMR and FDG-PET/CT.
• To evaluate the complementary role of combining CMR and FDG-PET/CT.
• To distinguish between benign and malignant cardiac masses.

Main Methods:

• Retrospective assessment of 72 patients with cardiac masses.
• Patients underwent both CMR and FDG-PET/CT within one month.
• Histological correlation was available for 56 patients.

Main Results:

• CMR and FDG-PET/CT demonstrated high accuracy in differentiating mass types.
• CMR showed high sensitivity (98%) for malignancy, while FDG-PET/CT showed high specificity (88%).
• Combining both modalities yielded 85% sensitivity and 88% specificity for malignant masses. Infiltrative borders on CMR and focal extracardiac FDG uptake predicted higher mortality.

Conclusions:

• CMR and FDG-PET/CT can independently diagnose cardiac masses with high accuracy.
• The combination of CMR and FDG-PET/CT offers complementary value in specific clinical scenarios.
• Integrated imaging strategies may enhance diagnostic confidence and patient management.