Computational anatomy as a driver of understanding structural and functional cardiac remodeling

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, and comparing individuals who were born small-for-their-gestational-age (SGA)...

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Detalles Bibliográficos
Autor: Bernardino, Gabriel
Tipo de recurso: tesis doctoral
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:CBUC, CESCA
Repositorio:TDR. Tesis Doctorales en Red
OAI Identifier:oai:www.tdx.cat:10803/668213
Acceso en línea:http://hdl.handle.net/10803/668213
Access Level:acceso abierto
Palabra clave:Computational anatomy
Statistical shape analysis
Medical image understanding
Cardiac remodelling
Anatomía computacional
Análisis estadístico de forma
Comprensión de imágenes medicas
Remodelado cardiaco
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Descripción
Sumario: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, and comparing individuals who were born small-for-their-gestational-age (SGA) and controls. We were able to identify the shape remodelling due to the practice of endurance sport: it consisted a dilation of the left ventricle and an increase of the left ventricular myocardial mass. In the right ventricle (RV), the increase of volume was concentrated in the outflow. This changes in shape correlated with a better performance during exercise. In SGA, we found subtle differences in the RV that correlated with worse performance during exercise. These differences were bigger when SGA condition was combined with cardiovascular risk factors: smoking and overweight. Finally, we present a geometry processing technique for parcellating the RV cavity in 3 subvolumes for regional analysis without point-to-point correspondence.