Visualization of Cardiac Myxoma Mobility With Real-Time Spiral Magnetic Resonance Imaging

A 75-year-old woman with atrial fibrillation and progressive heart failure had a transthoracic echocardiogram that showed an enlarged left atrium with a heterogeneous, echodense mass close to the septal base of the mitral valve. During diastole, this mass prolapsed through the mitral annulus into the left ventricle. Severe dyspnea and arrhythmia nullified standard …