基于联合决策卷积神经网络的光学相干断层扫描图像自动分类

doi:10.3969/j.issn.0258-8021.2018.06.001

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Abstract Optical coherence tomography (OCT) can provide in vivo three dimensional (3D) cross-sectional imaging of human retina at micrometer resolutions, which is a significant tool for the diagnosis and the progression tracking of retinal diseases. In the clinical diagnosis, ophthalmologists need to manually identify various macular lesions at each cross section of the 3D OCT images. Such manual analysis is time-consuming and often yields subjective results. Therefore, it is urgent to develop an automatic classification algorithm to improve the efficiency of OCT-based analysis in daily clinical practice. This paper proposed a novel automatic method, based on the convolutional neural networks (CNN) with joint decision for the classification of OCT images. The proposed joint-decision CNN-based method was able to automatically learn multiple-layer features from original OCT images through a convolutional neural network, these features in each layer were simultaneously utilized to separately make decision of classification. Finally, these decisions were fused together to achieve the final classification. The experimental results on Duke data sets (3231 B-scans) showed that the proposed joint-decision CNN-based method achieved average accuracy of 94.5%, average sensitivity 90.5% and average specificity 95.8%, for the automatic identification of normal macula, age-related macular degeneration and macular edema respectively. The experimental results on HUCM data sets (4322 B-scans) showed that the proposed joint-decision CNN-based method achievesd average accuracy of 89.6%, average sensitivity 88.8% and average specificity 90.8%. The results proved that the richly multiple-layer features of CNN could be used to accurately classify retinal OCT images, hence the algorithm provided effective technical support for the aided diagnosis of retinal diseases in clinical practice.

Key words： optical coherence tomography image classification convolutional neural networks joint decision

Received: 08 March 2018

PACS:

R318

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	Articles by authors
	Wang Chong
	He Xingxin
	Fang Leyuan
	Guo Siyu
	Chen Xiangdong
	Nie Fujiao

Cite this article:

Wang Chong,He Xingxin,Fang Leyuan, et al. Automatic Classification of Retinal Optical Coherence Tomography Images via Convolutional Neural Networks with Joint Decision[J]. Chinese Journal of Biomedical Engineering, 2018, 37(6): 641-648.

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http://cjbme.csbme.org/EN/10.3969/j.issn.0258-8021.2018.06.001 OR http://cjbme.csbme.org/EN/Y2018/V37/I6/641

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