Results 31 to 40 of about 25,814 (159)
Interactive-Automatic Segmentation and Modelling of the Mitral Valve [PDF]
, 2019 Mitral valve regurgitation is the most common valvular disease, affecting 10% of the population over 75 years old. Left untreated, patients with mitral valve regurgitation can suffer declining cardiac health until cardiac failure and death. Mitral valve repair is generally preferred over valve replacement. However, there is a direct correlation between
arxiv +1 more source
Heatmap-based 2D Landmark Detection with a Varying Number of Landmarks [PDF]
arXiv, 2021 Mitral valve repair is a surgery to restore the function of the mitral valve. To achieve this, a prosthetic ring is sewed onto the mitral annulus. Analyzing the sutures, which are punctured through the annulus for ring implantation, can be useful in surgical skill assessment, for quantitative surgery and for positioning a virtual prosthetic ring model ...
arxiv
4D ultrafast ultrasound imaging of naturally occurring shear waves in the human heart [PDF]
IEEE Transactions on Medical Imaging, Institute of Electrical and
Electronics Engineers, 2020, pp.1-1, 2020 The objectives were to develop a novel three-dimensional technology for imaging naturally occurring shear wave (SW) propagation, demonstrate feasibility on human volunteers and quantify SW velocity in different propagation directions. Imaging of natural SWs generated by valve closures has emerged to obtain a direct measurement of cardiac stiffness ...
arxiv +1 more source
Reoperação da valva mitral minimamente invasiva sem pinçamento da aorta
Brazilian Journal of Cardiovascular Surgery, 2013 INTRODUÇÃO: Reoperações da valva mitral apresentam maior índice de complicações quando comparadas com a primeira cirurgia. Com o domínio das técnicas videoassistidas para as primeiras cirurgias da valva mitral, os casos de reoperações passaram a ...
Rodrigo Milani +7 more
doaj +1 more source
Koopman analysis of the periodic Korteweg-de Vries equation [PDF]
, 2022 The eigenspectrum of the Koopman operator enables the decomposition of nonlinear dynamics into a sum of nonlinear functions of the state space with purely exponential and sinusoidal time dependence. For a limited number of dynamical systems, it is possible to find these Koopman eigenfunctions exactly and analytically.
arxiv +1 more source
Brazilian Journal of Cardiovascular Surgery, 1998 Objetivo: Os procedimentos conservadores sobre a valva mitral têm vantagens sobre a troca da mesma. Avaliamos os resultados a médio prazo em pacientes com valvopatia mitral de causa reumática quanto às variáveis clínicas e ecocardiográficas. Casuística e
Orlando Petrucci Júnior +5 more
doaj +1 more source
Modeling the Mitral Valve [PDF]
arXiv, 2022 This thesis is concerned with modeling and simulation of the mitral valve, one of the four valves in the human heart. The valve is composed of leaflets attached to a ring, the free edges of which are supported by a system of chordae, which themselves are anchored to muscles inside the heart.
arxiv
Insuficiencia mitral de etiología poco usual
Revista de ecocardiografía práctica y otras técnicas de imagen cardíaca, 2017 Se presenta un caso de lactante de 8 meses, que fue enviado por su pediatra para una consulta cardiovascular después de auscultar un soplo en el examen físico.
Guillermo Gutiérrez-Ballesteros +4 more
semanticscholar +1 more source
Arquivos Brasileiros de Cardiologia, 2013 FUNDAMENTO: A plástica valvar mitral é o procedimento cirúrgico de escolha para pacientes com Insuficiência Mitral (IM) crônica. Os bons resultados imediatos e tardios permitem a indicação cirúrgica antes do início dos sintomas. O teste cardiopulmonar de
Dorival Julio Della Togna +8 more
doaj +1 more source
Plástica da valva mitral: resultados tardios de doze anos de experiência e evolução das técnicas
, 1994 Foram estudados 301 pacientes, sendo 151 (50,2%) do sexo masculino, com idade variando de 3 meses a 79 anos (media de 37,96 com desvio padrao de 21,4 anos).
P. A. M. Pomerantzeff +9 more
semanticscholar +1 more source