Presentation 2016-05-19
Automatic classification of breast density on CT images by using deep CNN
Takuya Kano, Xiangrong Zhou, Hiromi Koyasu, Ryuziro Yokoyama, Takeshi Hara, Masayuki Matsuo, Hiroshi Fujita,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Breast density has been used as an important risk factor of breast cancer and routinely measured on 2D mammography. 3D CT images have been also expected as another image modality for breast density measurements. This research work proposed a novel method to classify a CT case directly into four categories of breast density by using an end-to-end mapping without any dependence on image segmentations. The deep convolutional neural network (CNN) was used as a core part for the classification and was trained on parameters by minimizing the classification errors to the human decisions. The processing flow of the proposed method can be described as localizing left and right breast regions on CT image firstly, and then, sampling a large number of 2D sections from the 3D breast regions for breast density classification based on the deep CNN, and making a final decision based on statistic of classification results of 2D sections. 40 CT cases from 30 to 60 years old women were used in the experiment. We used holdout validation to train and test the performance of the breast density classification, and confirmed that the breast density of 16 CT cases were classified correctly from total 20 test CT cases. In conclusion, the potential possibility of breast density classification on CT images was demonstrated.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) 3D CT images / breast region localization / breast density classification / convolutional neural network / deep learning
Paper # SIP2016-5,IE2016-5,PRMU2016-5,MI2016-5
Date of Issue 2016-05-12 (SIP, IE, PRMU, MI)

Conference Information
Committee PRMU / IE / MI / SIP
Conference Date 2016/5/19(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Eisaku Maeda(NTT) / Seishi Takamura(NTT) / Yoshitaka Masutani(Hiroshima City Univ.) / Osamu Houshuyama(NEC)
Vice Chair Shuji Senda(NEC) / Seiichi Uchida(Kyushu Univ.) / Takayuki Hamamoto(Tokyo Univ. of Science) / Atsuro Ichigaya(NHK) / Yoshiki Kawata(Tokushima Univ.) / Yuichi Kimura(Kinki Univ.) / Makoto Nakashizuka(Chiba Inst. of Tech.) / Masahiro Okuda(Univ. of Kitakyushu)
Secretary Shuji Senda(Mie Univ.) / Seiichi Uchida(DENSO IT Lab.) / Takayuki Hamamoto(NTT) / Atsuro Ichigaya(Chiba Inst. of Tech.) / Yoshiki Kawata(Aichi Inst. of Tech.) / Yuichi Kimura(Nagoya Inst. of Tech.) / Makoto Nakashizuka(NEC) / Masahiro Okuda(Ritsumeikan Univ.)
Assistant Kazuaki Kondo(Kyoto Univ.) / Akisato Kimura(NTT) / Keita Takahashi(Nagoya Univ.) / Kei Kawamura(KDDI R&D Labs.) / Ryo Haraguchi(NCVC) / Yasushi Hirano(Yamaguchi Univ.) / Takamichi Miyata(Chiba Inst. of Tech.)

Paper Information
Registration To Technical Committee on Pattern Recognition and Media Understanding / Technical Committee on Image Engineering / Technical Committee on Medical Imaging / Technical Committee on Signal Processing
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Automatic classification of breast density on CT images by using deep CNN
Sub Title (in English)
Keyword(1) 3D CT images
Keyword(2) breast region localization
Keyword(3) breast density classification
Keyword(4) convolutional neural network
Keyword(5) deep learning
1st Author's Name Takuya Kano
1st Author's Affiliation Gifu University(Gifu Univ.)
2nd Author's Name Xiangrong Zhou
2nd Author's Affiliation Gifu University(Gifu Univ.)
3rd Author's Name Hiromi Koyasu
3rd Author's Affiliation Gifu University Hospital(Gifu Univ. Hosp.)
4th Author's Name Ryuziro Yokoyama
4th Author's Affiliation Gifu University(Gifu Univ.)
5th Author's Name Takeshi Hara
5th Author's Affiliation Gifu University(Gifu Univ.)
6th Author's Name Masayuki Matsuo
6th Author's Affiliation Gifu University Hospital(Gifu Univ. Hosp.)
7th Author's Name Hiroshi Fujita
7th Author's Affiliation Gifu University(Gifu Univ.)
Date 2016-05-19
Paper # SIP2016-5,IE2016-5,PRMU2016-5,MI2016-5
Volume (vol) vol.116
Number (no) SIP-36,IE-37,PRMU-38,MI-39
Page pp.pp.21-25(SIP), pp.21-25(IE), pp.21-25(PRMU), pp.21-25(MI),
#Pages 5
Date of Issue 2016-05-12 (SIP, IE, PRMU, MI)