Automated Method to Analyze Geometry and Topology of Mitral Valve Fibrous Ring
نویسندگان
چکیده
منابع مشابه
[Mesoscopic study of the mitral valve and its fibrous ring].
PURPOSE To study the spatial arrangement of the fibrous elements that form the leaflets of the mitral valve and its fibrous ring. METHODS The study of 20 human adult hearts, of both sexes, fixed in 10% formaldehyde solution was made. The mitral valves with their fibrous rings and small parts of the adjacent atrial and ventricular muscles were removed. Part of this material was embedded in par...
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Adviser: Carina Curto Neurons in the brain represent external stimuli via neural codes. These codes often arise from stimulus-response maps, associating to each neuron a convex receptive field. An important problem confronted by the brain is to infer properties of a represented stimulus space without knowledge of the receptive fields, using only the intrinsic structure of the neural code. How d...
متن کاملRing thrombosis following mitral valve repair.
Sandro Sponga*, Elisabetta Auci, Pasquale Gianfagna and Ugolino Livi Cardiothoracic Department, University Hospital of Udine, Udine, Italy * Corresponding author. Cardiothoracic Department, University Hospital of Udine, P.le S.M. della Misericordia, 15, 33100 Udine, Italy. Tel: +39-0432-552430/+39-0432-552431; fax: +39-0432-552975; e-mail: [email protected] (S. Sponga). Received 14 May 20...
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Traditional polygon-arc-node topology is standard in vector GIS, but it has its limitations. This is particularly evident at the digitizing stage, which often appears excessively complex and tedious, Other methods, however, are capable of maintaining some forms of topology “automatically”, and this paper is an overview of three approaches based on the Voronoi diagram (or the equivalent Delaunay...
متن کاملEffects of Mechanical Ventilation on Heart Geometry and Mitral Valve Leaflet Coaptation During Percutaneous Edge-to-Edge Mitral Valve Repair.
OBJECTIVES This study sought to evaluate a ventilation maneuver to facilitate percutaneous edge-to-edge mitral valve repair (PMVR) and its effects on heart geometry. BACKGROUND In patients with challenging anatomy, the application of PMVR is limited, potentially resulting in insufficient reduction of mitral regurgitation (MR) or clip detachment. Under general anesthesia, however, ventilation ...
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ژورنال
عنوان ژورنال: Sovremennye tehnologii v medicine
سال: 2016
ISSN: 2076-4243
DOI: 10.17691/stm2016.8.2.03