Results 61 to 70 of about 142,178 (232)
Brazilian Journal of Cardiovascular Surgery, 2010 INTRODUCTION: The right anterolateral thoracotomy is an alternative technique for surgical approach of mitral valve. In these cases, femoral-femoral bypass still has been used, rising occurrence of complications related to femoral cannulation. Objective:
Marco Antonio Vieira Guedes +5 more
doaj +1 more source
Análise crítica da reconstrução da raiz da aorta com a preservação da valva aórtica: 11 anos de seguimento [PDF]
, 2010 INTRODUCTION: The composite mechanical valve conduit replacement is the standardized operation for aneurysms of the aortic root. The objective of this study is to evaluate the long-term surgical results of aortic valve-preserving procedures to the root ...
CARVALHO JR, Edemir V +7 more
core +2 more sources
Brazilian Journal of Cardiovascular Surgery, 2009 OBJECTIVE: Mitral valve surgery can be performed through the trans-atrial or the trans-septal approach. Although the trans-atrial is the preferred method, the trans-septal approach has also been used recently and has a particular value in beating-heart ...
Tomas A Salerno +6 more
doaj +1 more source
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
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
Ecodopplercardiografia transesofágica intra-operatória: utilidade na cirurgia da valva mitral
Revista Brasileira de Cirurgia Cardiovascular, 1992 A ecodopplercardiografia ocupa posicao de destaque no diagnostico das valvopatias, pois fornece dados sobre a anatomia valvar, a area estenotica, os gradientes pressoricos e o grau da regurgitacao. Seu uso na cirurgia cardiaca, com a abordagem epicardica, e bastante conhecido.
Moraes, Álvaro Villela de +11 more
openaire +4 more sources
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
Estudo da resistência à tração das cordas da valva mitral [PDF]
, 2006 OBJECTIVE: To determinate the extension and the resistance of the primary mitral valve chordae tendineae when submitted to traction. The importance of keeping the integrity of papillary muscle, chordae tendineae, and mitral valve cuspid when the ...
Braile, Domingo Marcolino +5 more
core +4 more sources