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Browsing Articles (Departament de Tecnologies de la Informació i les Comunicacions) by Author "Frangi Caregnato, Alejandro"

Browsing Articles (Departament de Tecnologies de la Informació i les Comunicacions) by Author "Frangi Caregnato, Alejandro"

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  • Bogunovic, Hrvoje; Pozo Soler, José Ma. (José María); Villa-Uriol, Maria-Cruz; Majoie, Charles B. L. M.; van den Berg, Rene; Gratama van Andel, Hugo A. F.; Macho, Juan M.; Blasco, Jordi; San Román, Luis; Frangi Caregnato, Alejandro (American Association of Physicists in Medicine (AAPM), 2010)
    Purpose: To evaluate the suitability of an improved version of an automatic segmentation method based on geodesic active regions (GAR) for segmenting cerebral vasculature with aneurysms from 3D X-ray reconstruc-/ntion ...
  • Hoogendoorn, Corné; Sukno, Federico Mateo; Ordás, Sebastián; Frangi Caregnato, Alejandro (Springer, 2009)
    In this work we describe the usage of bilinear statistical models as a means of factoring the shape variability into two components attributed to inter-subject variation and to the intrinsic dynamics of the human heart. ...
  • Costalat, Vincent; Sánchez, Mathieu; Ambard, Dominique; Thines, Laurent; Lonjon, Nicolas; Nicoud, Franck; Brunel, Hervé; Lejeune, Jean Paul; Dufour, Henry; Bouillot, Pablo; Lhaldky, J. P.; Kouri, K.; Segnarbieux, François; Mourage, Claude Alain; Lobostein, Kyriakos; Villa-Uriol, Maria-Cruz; Zhang, Chong; Frangi Caregnato, Alejandro; Mercier, Grégoire; Bonafé, Alain; Sarry, L.; Jourdan, Franck (Elsevier, 2011)
    Background and purpose: Individual rupture risk assessment of intracranial aneurysms is a major issue in the clinical management of asymptomatic aneurysms. Aneurysm rupture occurs when wall tension exceeds the strength ...
  • Huguet, Marina; Tobón Gómez, Catalina, 1981-; Bijnens, Bart; Frangi Caregnato, Alejandro; Petit i Guinovart, Màrius (BioMed Central, 2009)
    Blunt chest traumas are a clinical challenge, both for diagnosis and treatment. The use of/nCardiovascular Magnetic Resonance can play a major role in this setting. We present two cases: a/n12-year-old boy and 45-year-old ...
  • Oubel, E.; Craene, Mathieu de; Hero, A.O.; Pourmorteza, A.; Huguet, Marina; Avegliano, Gustavo P.; Bijnens, Bart; Frangi Caregnato, Alejandro (Elsevier, 2011)
    Image registration has been proposed as an automatic method for recovering cardiac displacement fields from Tagged Magnetic Resonance Imaging (tMRI) sequences. Initially performed as a set of pairwise registrations, these ...
  • Piella Fenoy, Gemma; Craene, Mathieu de; Bijnens, Bart; Tobón Gómez, Catalina, 1981-; Huguet, Marina; Avegliano, Gustavo P.; Frangi Caregnato, Alejandro (Elsevier, 2010)
    Introducción y objetivos. Se ha señalado que, en la miocardiopatía hipertrófica (MCH), la desorganización de las fibras regionales da lugar a segmentos en los que la deformación es nula o está gravemente reducida, y que ...
  • Bernardini, A.; Larrabide, Ignacio, 1978-; Petrini, L.; Pennati, G.; Flore, Eleonora; Kim, Minsuok; Frangi Caregnato, Alejandro (Taylor & Francis (Routledge), 2011)
    In the last few years, there has been a growing focus on faster computational methods to support clinicians in planning stenting procedures. This study investigates the possibility of introducing computational approximations ...
  • Zhang, Chong; Villa-Uriol, Maria-Cruz; Craene, Mathieu de; Pozo Soler, José Ma. (José María); Macho, Juan M.; Frangi Caregnato, Alejandro; Universitat Pompeu Fabra (American Association of Physicists in Medicine (AAPM), 2011)
    Purpose: The objective of this study is to investigate the feasibility of detecting and quantifying 3D cerebrovascular wall motion from a single 3D rotational x-ray angiography (3DRA) acquisition within a clinically ...
  • Romero García, Daniel; Sebastián Aguilar, Rafael, 1978-; Bijnens, Bart; Zimmerman, Viviana; Boyle, Patrick M.; Vigmond, Edward J.; Frangi Caregnato, Alejandro (Springer, 2010)
    Heart failure leads to gross cardiac structural changes. While cardiac resynchronization therapy (CRT) is a recognized treatment for restoring synchronous activation, it is not clear how changes in cardiac shape and size ...
  • Pozo Soler, José Ma. (José María); Villa-Uriol, Maria-Cruz; Frangi Caregnato, Alejandro (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    This paper introduces and evaluates a fast exact algorithm and a series of faster approximate algorithms for the computation of 3D geometric moments from an unstructured surface mesh of triangles. Being based on the object ...
  • Balocco, Simone; Basset, Olivier; Courbebaisse, Guy; Boni, Enrico; Frangi Caregnato, Alejandro; Tortoli, Piero; Cachard, Christian (Institute of Physics (IOP), 2010)
    Human arteries affected by atherosclerosis are characterized by altered wall viscoelastic properties. The possibility of noninvasively assessing arterial viscoelasticity in vivo would significantly contribute to the early ...
  • Martí Fuster, Berta; Esteban, Oscar; Planes, Xavier; Aguiar, Pablo; Crespo, Cristina; Falcon, Carles; Wollny, Gert; Rubí Sureda, Sebastià; Setoain, Xavier; Frangi Caregnato, Alejandro; Ledesma-Carbayo, María J.; Santos, Andrés; Pavía Segura, Javier; Ros, Domènec (Springer, 2013)
    Subtraction of Ictal SPECT Co-registered to MRI (SISCOM) is an imaging technique used to localize the epileptogenic focus in patients with intractable partial epilepsy. The aim of this study was to determine the accuracy ...
  • Morales, Hernán G.; Kim, Minsuok; Vivas, EE; Villa-Uriol, Maria-Cruz; Larrabide, Ignacio, 1978-; Sola, T; Guimaraens, Leopoldo; Frangi Caregnato, Alejandro (American Society of Neuroradiology, 2011)
    Endovascular coiling is a well-established therapy for treating intracranial aneurysms. Nonetheless, postoperative hemodynamic changes induced by this therapy remain not fully understood. The purpose of this work is to ...
  • Bijnens, Bart; Porras Pérez, Antonio Reyes; Alessandrini, Martino; Craene, Mathieu de; Duchateau, Nicolas; Sitges, Marta; Delingette, Hervé; Sermesant, Maxime; D'hooge, Jan; Frangi Caregnato, Alejandro; Piella Fenoy, Gemma (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    We propose a technique for myocardial motion estimation based on image registration using both B-mode echocardiographic images and tissue Doppler sequences acquired interleaved. The velocity field is modeled continuously ...
  • Larrabide, Ignacio, 1978-; Aguilar, María Laura; Morales, Hernán G.; Geers, Adrianus Johannes; Kulcsár, Zsolt; Rüfenacht, Daniel; Frangi Caregnato, Alejandro (American Society of Neuroradiology, 2013)
    Background and purpose: Effects of blood flow modification by flow diverters are observed to lead often to aneurysm thrombosis and reverse remodeling. For this process, to further understand the potential roles of ...
  • Zhang, Chong; Villa-Uriol, Maria-Cruz; Craene, Mathieu de; Pozo Soler, José Ma. (José María); Frangi Caregnato, Alejandro (Institute of Electrical and Electronics Engineers (IEEE), 2009)
    This paper presents a technique to estimate and model patient-specific pulsatility of cerebral aneurysms over one/ncardiac cycle, using 3D rotational X-ray angiography (3DRA) acquisitions. Aneurysm pulsation is modeled as ...
  • Benkner, Siegfried; Arbona, Antonio; Berti, Guntram; Chiarini, Alessandro; Dunlop, Robert; Engelbrecht, Gerhard; Frangi Caregnato, Alejandro; Friedrich, Christoph M.; Hanser, Susanne; Hasselmeyer, Peer; Hose, D. Rodney; Iavindrasana, Jimison; Köhler, Martin; Lo Iacono, Luigi; Lonsdale, Guy; Meyer, Rodolphe; Moore, Bob; Rajasekaran, Hariharan; Summers, Paul E.; Wöhrer, Alexander; Wood, Steven (Institute of Electrical and Electronics Engineers (IEEE), 2010)
    The increasing volume of data describing human/ndisease processes and the growing complexity of understanding, managing, and sharing such data presents a huge challenge for clinicians and medical researchers. This paper ...
  • Geers, Arjan; Larrabide, Ignacio, 1978-; Radaelli, Alessandro Guido; Bogunovic, Hrvoje; Kim, Minsuok; Gratama van Andel, Hugo A. F.; Majoie, Charles B. L. M.; VanBavel, E; Frangi Caregnato, Alejandro (American Society of Neuroradiology, 2011)
    Patient-specific simulations of the hemodynamics in intracranial aneurysms can be constructed by using image-based vascular models and CFD techniques. This work evaluates the impact of the choice of imaging technique on ...
  • Lange, Matthias; Di Marco, LY; Lekadir, Karim, 1977-; Lassila, Toni; Frangi Caregnato, Alejandro (Public Library of Science (PLoS), 2016)
    False tendons (FTs) are fibrous or fibromuscular bands that can be found in both the normal and abnormal human heart in various anatomical forms depending on their attachment points, tissue types, and geometrical properties. ...
  • Craene, Mathieu de; Piella Fenoy, Gemma; Camara, Oscar; Duchateau, Nicolas; Silva, Etelvino; Doltra, Adelina; D'hooge, Jan; Brugada, Josep; Sitges, Marta; Frangi Caregnato, Alejandro (Elsevier, 2011)
    This paper presents a new registration algorithm, called Temporal Di eomorphic Free Form Deformation (TDFFD), and its application to motion and strain quanti cation from a sequence of 3D ultrasound (US) images. The originality ...

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