Multicenter Validation of Convolutional Neural Networks for Automated Detection of Cardiomegaly on Chest Radiographs

  • Diego Cardenas INCOR
  • José Ferreira Junior INCOR
  • Ramon Moreno INCOR
  • Marina Rebelo INCOR
  • José Krieger INCOR
  • Marco Gutierrez INCOR

Resumo


This work focused on validating five convolutional neural network models to detect automatically cardiomegaly, a health complication that causes heart enlargement, which may lead to cardiac arrest. To do that, we trained the models with a customized multilayer perceptron. Radiographs from two public datasets were used in experiments, one of them only for external validation. Images were pre-processed to contain just the chest cavity. The EfficientNet model yielded the highest area under the curve (AUC) of 0.91 on the test set. However, the Inception-based model obtained the best generalization performance with AUC of 0.88 on the independent multicentric dataset. Therefore, this work accurately validated radiographic models to identify patients with cardiomegaly.

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Publicado
15/09/2020
CARDENAS, Diego; FERREIRA JUNIOR, José; MORENO, Ramon; REBELO, Marina; KRIEGER, José; GUTIERREZ, Marco. Multicenter Validation of Convolutional Neural Networks for Automated Detection of Cardiomegaly on Chest Radiographs. In: SIMPÓSIO BRASILEIRO DE COMPUTAÇÃO APLICADA À SAÚDE (SBCAS), 20. , 2020, Evento Online. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2020 . p. 179-190. ISSN 2763-8952. DOI: https://doi.org/10.5753/sbcas.2020.11512.