Tracking of the Anterior Mitral Leaflet in Echocardiographic Sequences using Active Contours

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2016

Autores

Sultan, MS (Autor) Outra; Martins, N (Autor) Outra; Veiga, D (Autor) Outra; Ferreira, MJ (Autor) Outra; Coimbra, M (Autor) FCUP

Ata de Conferência Internacional

Título: 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016, Orlando, FL, USA, August 16-20, 2016

Páginas: 1074-1077

Indexação

ISI Web of Knowledge - 5 Citações

Outras Informações

ID Authenticus: P-00M-4PH

DOI: 10.1109/EMBC.2016.7590889

Abstract (EN): Echocardiography assessment of cardiac valves plays a vital role in the diagnosis of rheumatic heart disease. In the vast majority of cases, the mitral valve gets affected, leading to the thickening of its leaflets that may result in the fusion of their tips. This changes the appearance and reduces the mobility of the leaflets, which also reduce the heart efficiency. Quantifying such parameters provides diagnostic insight. To achieve that, the first step is to identify and then track fast moving leaflets. This work is focused on Anterior Mitral Leaflet (AML) tracking. Open ended active contours are employed in this work by removing its boundary conditions. The external and internal energy of the contour is modified that extend the capture range, improve snake energy and encourages the leftmost end point of the contour to converge on the moving tip of the AML. Results show that contour points are tracked accurately with an average error of 4.9 pixels and a standard deviation of 2.1 pixels in 9 fully annotated normal sequences of real children clinical assessments.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4