Concept

Mitral valve prolapse

Related publications (20)

Modeling the fluid dynamics of the heart: from blood flows in idealized left ventricles to patient-specific aortic valve simulations

Alfio Quarteroni, Simone Deparis, Luca Dede', Davide Forti, Elena Faggiano, Anna Tagliabue, Marco Fedele

The computational fluid dynamics of the heart represents a challenging task both in terms of mathematical and numerical modeling; this is mainly due to the pulsatile nature of the blood flow, to its complex interaction with the valves, and, more in general ...

2015

Design and characterization of a soft magneto-rheological miniature shock absorber for a controllable variable stiffness sole

Yves Perriard, Yoan René Cyrille Civet, Daniel Grivon

The proposed paper discusses the design and characterization of a soft miniature Magneto-Rheological (MR) shock absorber. In particular, the final application considered for the insertion of the designed devices is a controllable variable stiffness sole fo ...

2015

Risk Assessment of Atrial Fibrillation: a Failure Prediction Approach

David Atienza Alonso, Giovanni Ansaloni, Ruben Braojos Lopez, Daniel Camilo Rojas Quirós

We present a methodology for identifying patients who have experienced Paroxysmal Atrial Fibrillation (PAF) among a given subject population. Our work is intended as an initial step towards the design of an unobtrusive portable system for concurrent detect ...

Institute of Electrical and Electronics Engineers2014

Helical flows and asymmetry of blood jet in dilated ascending aorta with normally functioning bicuspid valve

Alfio Quarteroni, Christian Vergara, Elena Faggiano

Bicuspid aortic valve (BAV) is associated with aortic dilatation and aneurysm. Several studies evidenced an eccentric systolic flow in ascending aorta associated with increased wall shear stresses (WSS) and the occurrence of an helical systolic flow. This ...

Springer Heidelberg2013

Off-the-shelf human decellularized tissue-engineered heart valves in a non-human primate model

Peter Modregger, Marco Stampanoni, Chad Brokopp

Heart valve tissue engineering based on decellularized xenogenic or allogenic starter matrices has shown promising first clinical results. However, the availability of healthy homologous donor valves is limited and xenogenic materials are associated with i ...

Elsevier2013

Reduced order models for the simulation of pathological heart valves

Lidia Stepanova

Numerical modeling of the human cardiovascular system (CVS) represents an active branch of research which allows the medical specialists to advance in understanding of underlined processes of blood circulation and the heart work at any scale, moreover, it ...

2013

Spinal Subarachnoid Space Pressure Measurements in an In Vitro Spinal Stenosis Model: Implications on Syringomyelia Theories

Bryn Andrew Martin

Full explanation for the pathogenesis of syringomyelia (SM), a neuropathology characterized by the formation of a cystic cavity (syrinx) in the spinal cord (SC), has not yet been provided. It has been hypothesized that abnormal cerebrospinal fluid (CSF) pr ...

2010

Multidimensional, Multistage Wavelet Footprints: A New Tool for Image Segmentation and Feature Extraction in Medical Ultrasound

Michaël Unser, Michael Sühling, Muthuvel Arigovindan

We present a new wavelet-based strategy for autonomous feature extraction and segmentation of cardiac structures in dynamic ultrasound images. Image sequences subjected to a multidimensional (2D plus time) wavelet transform yield a large number of individu ...

SPIE2003

Estimation of local aortic elastic properties with MRI

Nikolaos Stergiopoulos, Reto Meuli

Aortic compliance and pulse wave velocity (PWV) are important determiners of heart load, and are clinically useful indices of cardiovascular risk. Most direct methods to derive them require invasive pressure measurement. In this work a noninvasive techniqu ...

2002

Mechanism of pulmonary venous pressure and flow waves

Nikolaos Stergiopoulos, Patrick Segers

The pulmonary venous systolic flow wave has been attributed both to left heart phenomena, such as left atrial relaxation and descent of the mitral annulus, and to propagation of the pulmonary artery pressure pulse through the pulmonary bed from the right v ...

2000

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