Abstract
Mitral Annular Calcification (MAC) could even be a chronic, degenerative process of the fibrous support structure of the mitral valve [1,2]. MAC is usually visualized on echocardiography as an echo-dense shelf-like structure with an irregular, lumpy appearance involving the mitral valve annulus, with associated acoustic shadowing. within the Cardiovascular Health Study [3], MAC was quantified as mild (focal, limited increase in echodensity of the mitral annulus), moderate (marked echodensity involving one third to a minimum of 1 half the ring circumference), or severe (marked echodensity involving quite half the ring, or with intrusion into the left ventricular [LV] inflow tract).
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