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Ensemble of Convolutional Neural Networks for the Detection of Prostate Cancer in Multi-parametric MRI Scans

  • Quang H. NguyenEmail author
  • Mengnan Gong
  • Tao Liu
  • Ou Yang Youheng
  • Binh P. Nguyen
  • Matthew Chin Heng Chua
Chapter
  • 4 Downloads
Part of the Studies in Computational Intelligence book series (SCI, volume 899)

Abstract

Prostate MP-MRI scan is a non-invasive method of detecting early stage prostate cancer which is increasing in popularity. However, this imaging modality requires highly skilled radiologists to interpret the images which incurs significant time and cost. Convolutional neural networks may alleviate the workload of radiologists by discriminating between prostate tumor positive scans and negative ones, allowing radiologists to focus their attention on a subset of scans that are neither clearly positive nor negative. The major challenges of such a system are speed and accuracy. In order to address these two challenges, a new approach using ensemble learning of convolutional neural networks (CNNs) was proposed in this paper, which leverages different imaging modalities including T2 weight, B-value, ADC and Ktrans in a multi-parametric MRI clinical dataset with 330 samples of 204 patients for training and evaluation. The results of prostate tumor identification will display benign or malignant based on extracted features by the individual CNN models in seconds. The ensemble of the four individual CNN models for different image types improves the prediction accuracy to 92% with sensitivity at 94.28% and specificity at 86.67% among given 50 test samples. The proposed framework potentially provides rapid classification in high-volume quantitative prostate tumor samples.

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Copyright information

© The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2021

Authors and Affiliations

  • Quang H. Nguyen
    • 1
    Email author
  • Mengnan Gong
    • 2
  • Tao Liu
    • 2
  • Ou Yang Youheng
    • 3
  • Binh P. Nguyen
    • 4
  • Matthew Chin Heng Chua
    • 2
  1. 1.School of Information and Communication TechnologyHanoi University of Science and TechnologyHanoiVietnam
  2. 2.Institute of Systems ScienceNational University of SingaporeSingaporeSingapore
  3. 3.Department of OrthopaedicsSingapore General HospitalSingaporeSingapore
  4. 4.School of Mathematics and StatisticsVictoria University of WellingtonWellingtonNew Zealand

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