Segmentação de Vértebras e Diagnóstico de Fraturas em Imagens de Ressonância Magnética Utilizando U-Net 3D e Deep Belief Network

  • Anderson Matheus Passos Paiva UFMA
  • João Otávio Bandeira Diniz UFMA
  • Aristófanes Corrêa Silva UFMA
  • Anselmo Cardoso Paiva UFMA

Resumo


A dor lombar é uma razão comum para visitas clı́nicas e o exame de ressonância magnética é frequentemente utilizado em sistemas de apoio a di- agnóstico de patologias na coluna. Visando aprimorar e automatizar esse pro- cesso, este estudo propõe o uso de técnicas computacionais para a segmentação de vértebras em imagens de ressonância magnética, com o objetivo de realizar posteriores análises acerca de patologias na coluna. Para este fim, são utili- zadas duas arquiteturas de Deep Learning: a U-Net para a segmentação em 3D e a Deep Belief Network para a classificação de vértebras que apresen- tam ruptura ou não. Os resultados obtidos mostram que a U-Net é promissora em localizar a região da vértebra, obtendo um valor de Coeficiente de Dice médio de 89,51%, superando assim vários trabalhos importantes focados no problema. A classificação também se mostrou eficiente, com valores de 94,38% para acurácia e 88,8% de sensibilidade.

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Publicado
11/06/2019
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PAIVA, Anderson Matheus Passos; DINIZ, João Otávio Bandeira; SILVA, Aristófanes Corrêa; PAIVA, Anselmo Cardoso. Segmentação de Vértebras e Diagnóstico de Fraturas em Imagens de Ressonância Magnética Utilizando U-Net 3D e Deep Belief Network. In: SIMPÓSIO BRASILEIRO DE COMPUTAÇÃO APLICADA À SAÚDE (SBCAS), 19. , 2019, Niterói. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2019 . p. 106-117. ISSN 2763-8952. DOI: https://doi.org/10.5753/sbcas.2019.6246.

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