Efficient model-based quantification of left ventricular function in 3-D echocardiography.
IEEE Trans Med Imaging
; 21(9): 1059-68, 2002 Sep.
Article
em En
| MEDLINE
| ID: mdl-12564874
ABSTRACT
Quantitative functional analysis of the left ventricle plays a very important role in the diagnosis of heart diseases. While in standard two-dimensional echocardiography this quantification is limited to rather crude volume estimation, three-dimensional (3-D) echocardiography not only significantly improves its accuracy but also makes it possible to derive valuable additional information, like various wall-motion measurements. In this paper, we present a new efficient method for the functional evaluation of the left ventricle from 3-D echographic sequences. It comprises a segmentation step that is based on the integration of 3-D deformable surfaces and a four-dimensional statistical heart motion model. The segmentation results in an accurate 3-D + time left ventricle discrete representation. Functional descriptors like local wall-motion indexes are automatically derived from this representation. The method has been successfully tested both on electrocardiography-gated and real-time 3-D data. It has proven to be fast, accurate, and robust.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Função Ventricular Esquerda
/
Ecocardiografia Tridimensional
Limite:
Humans
Idioma:
En
Ano de publicação:
2002
Tipo de documento:
Article