Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/3013
Título: The usefulness of ultrasound in the classification of chronic liver disease
Autor: Ribeiro, Ricardo
Marinho, Rui
Velosa, José
Ramalho, Fernando
Sanches, João
Suri, J. S.
Palavras-chave: Kernel
Laboratories
Liver
Polynomials
Sensitivity
Support vector machines
Ultrasonic imaging
Algorithms
Artificial intelligence
End stage liver disease
Image enhancement
Sensitivity and specificity
Ultrasonography
Image interpretation, Computer-assisted
Data: 2011
Editora: IEEE
Citação: Ribeiro R, Marinho R, Velosa J, Ramalho F, Sanches J, Suri JS. The usefulness of ultrasound in the classification of chronic liver disease. In Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE; 2011. p. 5132-5.
Resumo: Chronic Liver Disease is a progressive, most of the time asymptomatic, and potentially fatal disease. In this paper, a semi-automatic procedure to stage this disease is proposed based on ultrasound liver images, clinical and laboratorial data. In the core of the algorithm two classifiers are used: a k nearest neighbor and a Support Vector Machine, with different kernels. The classifiers were trained with the proposed multi-modal feature set and the results obtained were compared with the laboratorial and clinical feature set. The results showed that using ultrasound based features, in association with laboratorial and clinical features, improve the classification accuracy. The support vector machine, polynomial kernel, outperformed the others classifiers in every class studied. For the Normal class we achieved 100% accuracy, for the chronic hepatitis with cirrhosis 73.08%, for compensated cirrhosis 59.26% and for decompensated cirrhosis 91.67%.
Peer review: yes
URI: http://hdl.handle.net/10400.21/3013
ISBN: 978-1-4244-4122-8
Versão do Editor: http://users.isr.ist.utl.pt/~jmrs/research/publications/myPapers/2011/2011_EMBC_RicardoRibeiro.pdf
Aparece nas colecções:ESTeSL - Capítulos ou partes de livros

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