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Valvular Heart Disease
Published in Paul Schoenhagen, Frank Dong, Cardiac CT Made Easy, 2023
Thickening and calcification of the mitral valve leaflets, which are often associated with mitral stenosis (Figure 6.7), and calcification at the mitral valve annulus (Figure 6.8) can be described. In patients with mitral valve prolapse, the typical systolic displacement of the mitral valve leaflets can be demonstrated (Figure 6.9). CT has recently been described in the assessment of mitral annular disjunction.69
Role of Computed Tomography in Pre-Procedural Planning of Transcatheter Mitral Valve Replacement
Published in Structural Heart, 2018
Wong-Li Yu, Nima Omid-Fard, Chesnal Arepalli, Michael Shao, Shmuel L. Hart, Jonathan Weir McCall, Samuel R. Rosenblatt, Philipp Blanke, Jonathon Leipsic
MDCT plays a complementary role in the adjudication of degenerative mitral valve disease (DMVD) and functional mitral regurgitation (FMR). The two groups have distinct pathophysiology resulting in different mitral annular and landing zone anatomy. DMVD is due to fibroelastic deficiency and myxomatous degeneration, leading to chordal elongation, valvular thickening and prolapse of the leaflets. The insertion of posterior mitral valve leaflet and annulus is commonly displaced to the left atrium, known as mitral annular disjunction (Figure 1).
High-resolution Four-dimensional Analysis with Multislice Computed Tomography of the Left Atrio-ventricular Junction in Mitral Annular Disjunction
Published in Structural Heart, 2020
Jerome Jouan, Gilles Soulat, Ignacio Masari, Damian Craiem, Elie Mousseaux
Objective: Mitral annular disjunction (MAD) has been associated with myxomatous mitral valve disease (MMVD) but functional analyses of the mitral annulus (MA) and the entire left atrio-ventricular junction (LAVJ) are lacking from high-resolution imaging to understand MAD physiopathology. Using multiphase cardiac computed tomography imaging (4D-MCCTI), we aimed at characterizing the morphological changes of MA and LAVJ throughout the cardiac cycle.