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Ensemble of Fully Convolutional Neural Network for Brain Tumor Segmentation from Magnetic Resonance Images

  • Avinash Kori
  • Mehul Soni
  • B. Pranjal
  • Mahendra Khened
  • Varghese Alex
  • Ganapathy KrishnamurthiEmail author
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 11384)

Abstract

We utilize an ensemble of the fully convolutional neural networks (CNN) for segmentation of gliomas and its constituents from multimodal Magnetic Resonance Images (MRI). The ensemble comprises of 3 networks, two 3-D and one 2-D network. Of the 3 networks, 2 of them (one 2-D & one 3-D) utilize dense connectivity patterns while the other 3-D network makes use of the residual connection. Additionally, a 2-D fully convolutional semantic segmentation network was trained to distinguish between air, brain, and lesion in the slice and thereby localize the lesion the volume. Lesion localized by the above network was multiplied with the segmentation mask generated by the ensemble to reduce false positives. On the BraTS validation data (n = 66), the scheme utilized in this manuscript achieved a whole tumor, tumor core and active tumor dice of 0.89 0.76, 0.76 respectively, while on the BraTS test data (n = 191), our scheme achieved the whole tumor, tumor core and active tumor dice of 0.83 0.72, 0.69 respectively.

Keywords

Brain tumor MRI CNN 3-D Ensemble 

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Indian Institute of Technology MadrasChennaiIndia

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