Marked calcification of the mitral annulus impairs its motion during the cardiac cycle. Dense calcification of the entire submitral region, in its most severe form, is characterized by the development of a rigid curved ring of calcium that encircles the mitral orifice. Ramifications of these ...
Abeldhani M et al. A simplified and reproducible method to size the mitral annulus: implications for transcatheter mitral valve replacement. European Heart Journal – Cardiovascular imaging 2016. Van Mieghem N, Rodríguez-Olivares R, et al. Computed tomography optimised fluoroscopy guidance for transcath...
This transesophageal echocardiographic 3-dimensional (3D) reconstruction of the mitral valve with transillumination postprocessing demonstrates the mobile caseating mitral annulus calcification (MAC) on the P2 and P3 scallops on the atrial side of the posterior mitral valve leaflet, with prolapse in the...
Cardiac CT is particularly suited for the detection of leaflet, commissural, and annulus calcification, but it also may detect noncalcified leaflet thickening. For an evaluation of the valve components, a reconstruction at 65% to 75% of the R-R interval for the open MV and a reconstruction at...
网络二尖瓣环形钙化;二尖瓣钙化 网络释义
Many previous studies have evaluated the impact of mitral valve (MV) deformity scores on the percutaneous transvenous mitral commissurotomy (PTMC) outcome in patients with mitral stenosis; however, the relationship between mitral annulus calcification (MAC) and the PTMC result has not yet been estab...
Mitral valve surgery in patients with extensive calcification of the mitral annulus. The objective of this work was to examine the clinical outcomes of mitral valve surgery in patients with extensive mitral annular calcification. Mitral val...
Mitral Annulus Calcification (MAC) MAC is a degenerative disorder of the fibrous support structure of the mitral valve that occurs rather commonly in the elderly, especially in women. The most common TTE finding among elderly patients referred for a cardiac source of embolism is a high reflective...
Successful valve replacement has been achieved within the first three years in two patients who had extensive calcification of the mitral valve annulus. This condition, although commonly reported in pathology and autopsy studies, has been rare in our clinical experience. Surgical management does not ap...
Rupture of the chordae tendineae or chordal rupture associated with mitral valve prolapse can cause severe acute mitral regurgitation. Mitral annular calcification (MAC) resulting in rigidity of the mitral annulus may also lead to mitral regurgitation. Although rare, MR can be caused by penetrating ...