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Discrimination of benign and malignant pulmonary tumors in computed tomography: effective priori information of fast learning network architecture
Author(s): Hao-Jen Wang; Leng-Rong Chen; Li-Wei Chen; Yi-Chang Chen; Shun-Mao Yang; Mong-Wei Lin; Joseph Chang; Chia-Chen Li; Chia-Yen Lee; Jin-Shing Chen; Yeun-Chung Chang; Chung-Ming Chen
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Paper Abstract

This study explores the influence of prior information for deep learning networks to discriminate the benign and malignant of pulmonary tumors in computed tomography. In this study, because the number of nodule samples is sparse, this study proposes the concept of Multiple-Window to provide prior knowledge for Convolutional neural network (CNN). In the Multiple-Window CNN, we use the 5 windows including lung window, abdomen window, bone window, and chest window to generate the nodule sample. The sparse number of nodule samples, through the characteristics of the CT image dynamic range, make more prior information in a limited amount of data. The results show that the increase of suitably prior information (window channel) be included, CNN performance has improved. When the input is original dicom image, the accuracy of CNN is 0.82, sensitivity is 0.82, and specificity is 0.82. When the input is 4 kinds channel of window type, the accuracy is 0.9, sensitivity is 0.84, and specificity is 0.96.

Paper Details

Date Published: 15 March 2019
PDF: 7 pages
Proc. SPIE 10949, Medical Imaging 2019: Image Processing, 109493B (15 March 2019); doi: 10.1117/12.2512846
Show Author Affiliations
Hao-Jen Wang, National Taiwan Univ. (Taiwan)
Leng-Rong Chen, National Taiwan Univ. (Taiwan)
Li-Wei Chen, National Taiwan Univ. (Taiwan)
Yi-Chang Chen, National Taiwan Univ. (Taiwan)
Shun-Mao Yang, National Taiwan Univ. (Taiwan)
Mong-Wei Lin, National Taiwan Univ. Hospital (Taiwan)
Joseph Chang, National Taiwan Univ. (Taiwan)
Chia-Chen Li, National Taiwan Univ. (Taiwan)
Chia-Yen Lee, National United Univ. (Taiwan)
Jin-Shing Chen, National Taiwan Univ. Hospital (Taiwan)
Yeun-Chung Chang, National Taiwan Univ. Hospital (Taiwan)
Chung-Ming Chen, National Taiwan Univ. (Taiwan)


Published in SPIE Proceedings Vol. 10949:
Medical Imaging 2019: Image Processing
Elsa D. Angelini; Bennett A. Landman, Editor(s)

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