Semi-automatic algorithm for construction of the left ventricular area variation curve over a complete cardiac cycle |
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| Authors: | Salvador A Melo Suffix" >Júnior,Bruno Macchiavello,Marcelino M Andrade,João LA Carvalho,Hervaldo S Carvalho,Daniel F Vasconcelos,Pedro A Berger,Adson F da Rocha,Francisco AO Nascimento |
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| Affiliation: | 1.Department of Electrical Engineering,University of Brasília,Brasília,Brazil;2.Department of Computer Science,University of Brasília,Brasília,Brazil;3.UnB-Gama Faculty,University of Brasília,Gama,Brazil;4.School of Medicine,University of Brasília,Brasília,Brazil |
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| Abstract: | Background Two-dimensional echocardiography (2D-echo) allows the evaluation of cardiac structures and their movements. A wide range of clinical diagnoses are based on the performance of the left ventricle. The evaluation of myocardial function is typically performed by manual segmentation of the ventricular cavity in a series of dynamic images. This process is laborious and operator dependent. The automatic segmentation of the left ventricle in 4-chamber long-axis images during diastole is troublesome, because of the opening of the mitral valve. |
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