CMR with T1-mapping is useful for characterizing inter-atrial masses such as lipomatous hypertrophy or lipomas.
Supports CMR characterization of inter-atrial lipomatous masses; leaves open prospective validation before broader adoption.
A 67-year-old woman initially presented with dyspnoea. Echocardiography demonstrated an inter-atrial mass. Cardiovascular magnetic resonance (CMR) showed a well-marginated mass (35 mm × 45 mm) in the inter-atrial septum (IAS) sparing the fossa ovalis, extending to the posterior right atrial wall. The mass had high signal intensity on T1-weighted images ( Panels A and B , arrows) consistent with fat, which attenuated on fat-suppression imaging ( Panels C and …
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Ferreira et al. (2013) studied this question.