Three-dimensional dynamics of the canine mitral annulus during ischemic mitral regurgitation.


BACKGROUND It has been suggested that ischemic mitral regurgitation results, at least in part, from generalized end-systolic mitral annulus (MA) dilatation, but the role of the MA is incompletely understood and the segmental dynamics of the MA during left ventricular ischemia have not been described. METHODS We used radiopaque markers and simultaneous… (More)


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