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Updated: Apr 4, 2026

Cardiac Magnetic Resonance for the Evaluation of Suspected Cardiac Thrombus: Conventional and Emerging Techniques
Published on: June 11, 2019
Mirror artifact mimicking a large atrial mass
S Maino1, F M Gobbi1, M Fabris1
1Cardiovascular Imaging Unit, Cardiothoracic Department, IRCCS San Raffaele Hospital, Milan, 20129, Italy.
None:
Echocardiographic images may occasionally display false, mislocated, or distorted structures due to artifacts arising from tissue interactions, ultrasound beam characteristics, or image reconstruction algorithms. We report the case of a man with a history of mitral valve repair and tricuspid annuloplasty in whom a suspected right atrial mass was observed. A CT scan was performed to exclude the presence of a mass; however, careful review of the echocardiographic images demonstrated that the finding represented a mirror artifact, with the annuloplasty ring acting as a strong reflector.
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