Francesc Carreras

Universitat Politècnica de Catalunya

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Guillem Pons‐Lladó

Hospital de Sant Pau

Rubén Leta

Hospital de Sant Pau

Sandra Pujadas

Hospital de Sant Pau

Xavier Borrás

Universitat Autònoma de Barcelona

Xavier Alomar

Universitat de Barcelona

David Viladés

Hospital de Sant Pau

Antonio Magaña

Universitat Politècnica de Catalunya

Débora Gil

Universitat Autònoma de Barcelona

Manel Ballester

Hospital de Sant Pau

Marı́a Albina Puente

Universitat Politècnica de Catalunya

Cooperative Institutions

Hospital de Sant Pau

196

Universitat Autònoma de Barcelona

165

Centro de Investigación en Red en Enfermedades Cardiovasculares

Instituto de Salud Carlos III

Centro de Investigación Biomédica en Red

Istituti di Ricovero e Cura a Carattere Scientifico

Universitat de Barcelona

University of Padua

Imperial College London

Institute of Cardiology

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Coalitional multinomial probabilistic values

European Journal of Operational Research (2015)

Francesc Carreras Marı́a Albina Puente

Shapley Value

Multinomial distribution

Characterization

Binomial (polynomial)

Value (mathematics)

10.1016/j.ejor.2015.02.017

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Citations (12)

Characterization of ventricular torsion in healthy subjects using Gabor filters and a variational framework

J. Garcia‐Barnés Débora Gil J. Barajas Francesc Carreras Sandra Pujadas

In this work, we present a fully automated method for tissue deformation estimation in tagged magnetic resonance images (TMRI). Gabor filter banks, tuned independently for each left ventricle level, provide optimally filtered complex images which phase remains constant along the cardiac cycle. This fact can be thought as the brightness constancy condition required by classical optical flow (OF) methods. Pairs of these filtered sequences, together with a variational formulation are used in a second step to obtain dense continuous deformation maps that we call harmonic phase flow. This method has been used to determine reference values of ventricular torsion (VT) in a set of 8 healthy volunteers. The results encourage the use of VT as a useful parameter for ventricular function assessment in clinical routine.

Gabor filter

Maxima and minima

Cardiac cycle

Optical Flow

Harmonic Analysis

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Citations (12)

Helical Structure of the Cardiac Ventricular Anatomy Assessed by Diffusion Tensor Magnetic Resonance Imaging With Multiresolution Tractography

Revista Española de Cardiología (English Edition) (2013)

Ferran Poveda Débora Gil Enric Martı́Albert Andaluz Manel Ballester

10.1016/j.rec.2013.04.021

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Citations (50)

A Normalized Framework for the Design of Feature Spaces Assessing the Left Ventricular Function

IEEE Transactions on Medical Imaging (2010)

J. Garcia‐Barnés Débora Gil Llorenç Badiella Aura Hernàndez-Sabaté Francesc Carreras

A through description of the left ventricle functionality requires combining complementary regional scores. A main limitation is the lack of multiparametric normality models oriented to the assessment of regional wall motion abnormalities (RWMA). This paper covers two main topics involved in RWMA assessment. We propose a general framework allowing the fusion and comparison across subjects of different regional scores. Our framework is used to explore which combination of regional scores (including 2-D motion and strains) is better suited for RWMA detection. Our statistical analysis indicates that for a proper (within interobserver variability) identification of RWMA, models should consider motion and extreme strains.

Ventricular Function

10.1109/tmi.2009.2034653

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Citations (34)

Value of coronary calcium subtraction to improve diagnostic accuracy of coronary CTA

Alberto Hidalgo David Viladés Rubén Leta Xavier Alomar Francesc Carreras

Poster: ESCR 2014 / 445 / Value of coronary calcium subtraction to improve diagnostic accuracy of coronary CTA by: A. Hidalgo , D. Vilades, R. Leta, X. Alomar, F. Carreras, G. Pons-Llado; Barcelona/ES

Subtraction

Value (mathematics)

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Data analisis of 4D phase contrast MRI in healthy and non-healthy patients

Eduardo Soudah Maurizio Bordone Marcelino Rodriguez Jorge S. Pérez Chi‐Hion Li

Time-resolved, 3-dimensional phase-contrast magnetic resonance imaging (3D+t PCMRI) is employed to obtain complete spatial and temporal coverage of the vessels blood combined with spatially registered 3-directional pulsatile blood flow velocities[1][2]. Recent studies have reported that Wall Shear Stress (WSS) quantification from PCMRI are able to use the WSS as biomarkers for different aortas pathologies [3]. Figure [1] shows the pathline visualization of blood flow during one cardiac cycle in the heart of a healthy patient at peak early LV filling, diastasis, peak atrial contraction, and peak systole.

Cardiac cycle

Pulsatile flow

Diastasis

Systole

10.1109/ispa.2013.6703798

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Ballester-Rodés and Others - A New Look at the T Wave

Fluid Mechanics Open Access (2016)

Manel Ballester Rodes Francesc Carreras Jagat Narula James L. Oschman

Over a century ago a Dutch physician, Willem Einthoven, developed a galvanometer that could record the voltages produced during the cardiac cycle using electrodes placed on the body surface. Einthoven assigned the letters P, Q, R, S and T to the various deflections, a terminology that is still in use today. His seminal discovery eventually led to the clinically useful field of electrocardiography, and Einthoven received the Nobel Prize in Medicine in 1924.

10.4172/2476-2296.1000128

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Citations (2)

[Bullet embolism of the right ventricle following gunshot wound].

PubMed (1992)

Marti Marti Augé Jm Francesc Carreras Cámara Ml Caralps Jm

Gunshot wound

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Citations (5)

Propofol sedation administered by cardiologists in echocardiography studies

REC CardioClinics (2021)