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Automatic segmentation of brain MRI using a novel patch-wise U-net deep architecture
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Automatic segmentation of brain MRI using a novel patch-wise U-net deep architecture
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Automatic segmentation of brain MRI using a novel patch-wise U-net deep architecture
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Journal Article
Automatic segmentation of brain MRI using a novel patch-wise U-net deep architecture
2020
Overview
Accurate segmentation of brain magnetic resonance imaging (MRI) is an essential step in quantifying the changes in brain structure. Deep learning in recent years has been extensively used for brain image segmentation with highly promising performance. In particular, the U-net architecture has been widely used for segmentation in various biomedical related fields. In this paper, we propose a patch-wise U-net architecture for the automatic segmentation of brain structures in structural MRI. In the proposed brain segmentation method, the non-overlapping patch-wise U-net is used to overcome the drawbacks of conventional U-net with more retention of local information. In our proposed method, the slices from an MRI scan are divided into non-overlapping patches that are fed into the U-net model along with their corresponding patches of ground truth so as to train the network. The experimental results show that the proposed patch-wise U-net model achieves a Dice similarity coefficient (DSC) score of 0.93 in average and outperforms the conventional U-net and the SegNet-based methods by 3% and 10%, respectively, for on Open Access Series of Imaging Studies (OASIS) and Internet Brain Segmentation Repository (IBSR) dataset.
Publisher
Public Library of Science,Public Library of Science (PLoS)
Subject
/ Brain
/ Computer and Information Sciences
/ Humans
/ Image Processing, Computer-Assisted - methods
/ Image Processing, Computer-Assisted - statistics & numerical data
/ Magnetic Resonance Imaging - methods
/ Magnetic Resonance Imaging - statistics & numerical data
/ Medicine and Health Sciences
/ Methods
