Browsing by Author "Bernardino Perez, Gabriel"

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  • A Rule-Based method to model myocardial fiber orientation for simulating ventricular outflow tract arrhythmias
    Doste Beltrán, Rubén; Soto-Iglesias, David; Bernardino Perez, Gabriel; Sebastián Aguilar, Rafael, 1978-; Giffard-Roisin, Sophie; Cabrera-Lozoya, Rocío; Sermesant, Maxime; Berruezo Sánchez, Antonio; Sánchez-Quintana, Damián; Camara, Oscar (Springer, 2017)
    Myocardial fiber orientation determines the propagation of electrical waves in the heart and the contraction of cardiac tissue. One common approach for assigning fiber orientation to cardiac anatomi- cal models are ...
  • Assessment of haemodynamic remodeling in fetal aortic coarctation using a lumped model of the circulation
    Giménez Mínguez, Paula; Bijnens, Bart; Bernardino Perez, Gabriel; Lluch Alvarez, Èric; Soveral, Iris; Gómez, Olga; García Cañadilla, Patricia, 1985- (Springer, 2017)
    Aortic coarctation is one of the most difficult cardiac defects to diagnose before birth, and it accounts for 8% of congenital heart diseases. Antenatal diagnosis is crucial for early treatment of the neonate and to decrease ...
  • Computational anatomy as a driver of understanding structural and functional cardiac remodeling
    Bernardino Perez, Gabriel (Universitat Pompeu Fabra, 2019-12-16)
    We present a statistical shape analysis framework to identify cardiac shape remodelling while accounting for individual´s natural variability and apply it in two clinical applications: comparing triathletes with controls, ...
  • Estimating 3D ventricular shape from 2D echocardiography: feasibility and effect of noise
    Bernardino Perez, Gabriel; Butakoff, Constantine; Nuñez-Garcia, Marta; Sarvari, Sebastian Imre; Rodriguez López, Mérida; Crispi Brillas, Fàtima; González Ballester, Miguel Ángel, 1973-; Craene, Mathieu de; Bijnens, Bart (Springer, 2017)
    Many cardiac diseases are associated with changes in ventricular shape. However, in daily practice, the heart is mostly assessed by 2D echocardiography only. While 3D techniques are available, they are rarely used. In this ...
  • Fast quasi-conformal regional flattening of the left atrium
    Nuñez-Garcia, Marta; Bernardino Perez, Gabriel; Alarcón, Francisco; Caixal, Gala; Mont, Lluís; Camara, Oscar; Butakoff, Constantine (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Two-dimensional representation of 3D anatomical structures is a simple and intuitive way for analysing patient information across populations and image modalities. While cardiac ventricles, especially the left ventricle, ...
  • Handling confounding variables in statistical shape analysis - application to cardiac remodelling
    Bernardino Perez, Gabriel; Benkarim, Oualid M.; Sanz de la Garza, Maria; Prat Gonzàlez, Susanna; Sepúlveda-Martínez, Álvaro; Crispi Brillas, Fàtima; Sitges, Marta; Butakoff, Constantine; Craene, Mathieu de; Bijnens, Bart; González Ballester, Miguel Ángel, 1973- (Elsevier, 2020)
    Statistical shape analysis is a powerful tool to assess organ morphologies and find shape changes associated to a particular disease. However, imbalance in confounding factors, such as demographics might invalidate the ...
  • Reinforcement learning for active modality selection during diagnosis
    Bernardino Perez, Gabriel; Jonsson, Anders, 1973-; Loncaric, Filip; Martí Castellote, Pablo Miki; Sitges, Marta; Clarysse, Patrick; Duchateau, Nicolas (Springer, 2022)
    Diagnosis through imaging generally requires the combination of several modalities. Algorithms for data fusion allow merging information from different sources, mostly combining all images in a single step. In contrast, ...
  • Right ventricular global and regional remodeling in american-style football athletes: A longitudinal 3D echocardiographic study
    Hodzic, Amir; Bernardino Perez, Gabriel; Legallois, Damien; Gendron, Patrick; Langet, Hélène; Craene, Mathieu de; González Ballester, Miguel Ángel, 1973-; Milliez, Paul; Normand, Hervé; Bijnens, Bart; Saloux, Eric; Tournoux, Francois (MDPI, 2021)
    Few data exist concerning the right ventricular (RV) physiological adaptation in American-style football (ASF) athletes. We aimed to analyze the RV global and regional responses among ASF-trained athletes. Fifty-nine (20 ...
  • A rule-based method to model myocardial fiber orientation in cardiac biventricular geometries with outflow tracts
    Doste Beltrán, Rubén; Soto-Iglesias, David; Bernardino Perez, Gabriel; Alcaine, Alejandro; Sebastián Aguilar, Rafael, 1978-; Giffard-Roisin, Sophie; Sermesant, Maxime; Berruezo Sánchez, Antonio; Sánchez-Quintana, Damián; Camara, Oscar (Wiley, 2019)
    Rule-based methods are often used for assigning fiber orientation to cardiac anatomical models. However, existing methods have been developed using data mostly from the left ventricle. As a consequence, fiber information ...
  • Standard quasi-conformal flattening of the right and left atria
    Nuñez-Garcia, Marta; Bernardino Perez, Gabriel; Doste Beltrán, Rubén; Zhao, Jichao; Camara, Oscar; Butakoff, Constantine (Springer, 2019)
    Two-dimensional standard representations of 3D anatomical structures are a simple and intuitive way for analysing patient information across populations and image modalities. They also allow convenient visualizations that ...
  • Three-dimensional regional bi-ventricular shape remodeling is associated with exercise capacity in endurance athletes
    Bernardino Perez, Gabriel; Sanz de la Garza, Maria; Domenech Ximenos, Blanca; Prat Gonzàlez, Susanna; Perea, Rosario J.; Blanco, Isabel; Burgos, Felip; Sepúlveda-Martínez, Álvaro; Rodríguez López, Mérida; Crispi Brillas, Fàtima; González Ballester, Miguel Ángel, 1973-; Craene, Mathieu de; Sitges, Marta; Bijnens, Bart (Springer, 2020)
    Aims: Endurance athletes develop cardiac remodeling to cope with increased cardiac output during exercise. This remodeling is both anatomical and functional and shows large interindividual variability. In this study, we ...
  • Volumetric parcellation of the cardiac right ventricle for regional geometric and functional assessment
    Bernardino Perez, Gabriel; Hodzic, Amir; Langet, Hélène; Legallois, Damien; Craene, Mathieu de; González Ballester, Miguel Ángel, 1973-; Saloux, Eric; Bijnens, Bart (Elsevier, 2021)
    3D echocardiography is an increasingly popular tool for assessing cardiac remodelling in the right ventricle (RV). It allows quantification of the cardiac chambers without any geometric assumptions, which is the main ...