Browsing by Author "Villa-Uriol, Maria-Cruz"

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  • Automated Segmentation of Cerebral Vasculature with Aneurysms in 3DRA and TOF-MRA using Geodesic Active Regions: an Evaluation Study
    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 ...
  • Biomechanical wall properties of human intracranial aneurysms resected following surgical clipping (IRRAs Project)
    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 ...
  • Dynamic estimation of three-dimensional cerebrovascular deformation from rotational angiography
    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 ...
  • Efficient 3D Geometric and Zernike moments computation from unstructured surface meshes
    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 ...
  • How do coil configuration and packing density influence intra-aneurysmal hemodynamics?
    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 ...
  • Morphodynamic analysis of cerebral aneurysm pulsation from time-resolved rotational angiography
    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 ...
  • Recovery of cerebrovascular morphodynamics from time-resolved rotational angiography
    Zhang, Chong (Universitat Pompeu Fabra, 2011-12-01)
    Over the last decade, there has been a growing interest in assessing cerebral aneurysmal wall motion, because of its potential connections to the biomechanical conditions of the vessel wall, which could eventually aid the ...
  • The role of computational fluid dynamics in the management of unruptured intracranial aneurysms: a clinicians' view
    Singh, Pankai K.; Marzo, Alberto; Coley, Stuart C.; Berti, Guntram; Bijlenga, Philippe; Lawford, Patricia V.; Villa-Uriol, Maria-Cruz; Rufenacht, Daniel A.; McCormack, Keith M.; Frangi Caregnato, Alejandro; Patel, Umang J.; Hose, D. Rodney (Hindawi, 2009)
    Objective: The importance of hemodynamics in the etiopathogenesis of intracranial aneurysms (IAs) is widely accepted./nComputational fluid dynamics (CFD) is being used increasingly for hemodynamic predictions. However, ...
  • Three-dimensional morphological analysis of intracranial aneurysms: a fully automated method for aneurysm sac isolation and quantification
    Larrabide, Ignacio, 1978-; Villa-Uriol, Maria-Cruz; Cardenes, Rubén; Pozo Soler, José Ma. (José María); Macho, Juan M.; San Román, Luis; Blasco, Jordi; Vivas, Elio; Marzo, Alberto; Hose, D. Rodney; Frangi Caregnato, Alejandro (American Association of Physicists in Medicine (AAPM), 2011)
    Morphological descriptors are practical and essential biomarkers for diagnosis and/ntreatment selection for intracranial aneurysm management according to the current guidelines/nin use. Nevertheless, relatively little work ...
  • Toward integrated management of cerebral aneurysms
    Villa-Uriol, Maria-Cruz; Larrabide, Ignacio, 1978-; Pozo Soler, José Ma. (José María); Kim, Minsuok; Camara, Oscar; Craene, Mathieu de; Zhang, Chong; Geers, Arjan; Morales, Hernán G.; Bogunovic, Hrvoje; Cardenes, Rubén; Frangi Caregnato, Alejandro (Royal Society, 2010)
    In the last few years, some of the visionary concepts behind the virtual physiological human began to be demonstrated on various clinical domains, showing great promise for improving healthcare management. In the current ...

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