Volumetric convnets with mixed residual connections for automated prostate segmentation from 3D MR images
Refereed conference paper presented and published in conference proceedings


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AbstractAutomated prostate segmentation from 3D MR images is very challenging due to large variations of prostate shape and indistinct prostate boundaries. We propose a novel volumetric convolutional neural network (ConvNet) with mixed residual connections to cope with this challenging problem. Compared with previous methods, our volumetric ConvNet has two compelling advantages. First, it is implemented in a 3D manner and can fully exploit the 3D spatial contextual information of input data to perform efficient, precise and volume-to-volume prediction. Second and more important, the novel combination of residual connections (i.e., long and short) can greatly improve the training efficiency and discriminative capability of our network by enhancing the information propagation within the ConvNet both locally and globally. While the forward propagation of location information can improve the segmentation accuracy, the smooth backward propagation of gradient flow can accelerate the convergence speed and enhance the discrimination capability. Extensive experiments on the open MICCAI PROMISE12 challenge dataset corroborated the effectiveness of the proposed volumetric ConvNet with mixed residual connections. Our method ranked the first in the challenge, outperforming other competitors by a large margin with respect to most of evaluation metrics.
The proposed volumetric ConvNet is general enough and can be easily extended to other medical image analysis tasks, especially ones with limited training data.
All Author(s) ListLequan Yu, Xin Yang, Hao Chen, Jing Qiny, Pheng Ann Heng
Name of ConferenceThe Thirty-First AAAI Conference on Artificial Intelligence
Start Date of Conference04/02/2017
End Date of Conference09/02/2017
Place of ConferenceSan Francisco, California
Country/Region of ConferenceUnited States of America
Year2017
Month2
LanguagesEnglish-United States

Last updated on 2018-22-01 at 09:14