Presentation 2019-01-22
Super-resolution of μCT image about dissected lung tissue using Adversarial Dense U-net
Tong Zheng, Hirohisa Oda, Holger R. Roth, Masahiro Oda, Shota Nakamura, Kensaku Mori,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) μCT images capture three dimensional structures of tissues with a very high resolution of 100 micrometer or smaller. fine structures such as invasion of lung cancer. However, μCT cannot be used for clinical diagnosis. Although the clinical CT images are used for preoperative diagnosis, it cannot obtain detailed information of tumors. We are planning super-resolution of clinical CT images to μCT-level. As an initial trial, we perform super-resolution of downsampled μCT images to original resolution level. In this paper, we propose Adversarial Dense U-net, based on Dense U-net and Generative Adversarial Network. The network structure including U-net with dense blocks, while a discriminator was used to distinguish whether the output image is a super-resoluted image or an original image. Experiments were performed on μCT images of five cases of dissected lung tissues, and another one case was used for testing. We performed experiments on both 2D and 3D network structure. We evaluated results both quantitatively and qualitatively. Experimental results demonstrated that our proposed method has a SSIM (Structural Similarity) of 0.967 (3D) and 0.946 (2D).
Keyword(in Japanese) (See Japanese page)
Keyword(in English) μCT / Dense U-net / Generative Adversarial Network / super-resolution
Paper # MI2018-61
Date of Issue 2019-01-15 (MI)

Conference Information
Committee MI
Conference Date 2019/1/22(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English) Medical Image Engineering, Analysis, Recognition, etc.
Chair Kensaku Mori(Nagoya Univ.)
Vice Chair Yoshiki Kawata(Tokushima Univ.) / Yuichi Kimura(Kinki Univ.)
Secretary Yoshiki Kawata(Aichi Inst. of Tech.) / Yuichi Kimura(Nagoya Inst. of Tech.)
Assistant Ryo Haraguchi(Univ. of Hyogo) / Yasushi Hirano(Yamaguchi Univ.)

Paper Information
Registration To Medical Imaging
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Super-resolution of μCT image about dissected lung tissue using Adversarial Dense U-net
Sub Title (in English)
Keyword(1) μCT
Keyword(2) Dense U-net
Keyword(3) Generative Adversarial Network
Keyword(4) super-resolution
1st Author's Name Tong Zheng
1st Author's Affiliation Graduate School of Informatics, Nagoya University(Nagoya University)
2nd Author's Name Hirohisa Oda
2nd Author's Affiliation Graduate School of Information Science(Nagoya University)
3rd Author's Name Holger R. Roth
3rd Author's Affiliation Graduate School of Informatics, Nagoya University(Nagoya University)
4th Author's Name Masahiro Oda
4th Author's Affiliation Graduate School of Informatics, Nagoya University(Nagoya University)
5th Author's Name Shota Nakamura
5th Author's Affiliation Nagoya University Graduate School of Medicine(Nagoya University)
6th Author's Name Kensaku Mori
6th Author's Affiliation Graduate School of Informatics, Nagoya University/Research Center for Medical Bigdata, National Institute of Informatics(Nagoya University/NII)
Date 2019-01-22
Paper # MI2018-61
Volume (vol) vol.118
Number (no) MI-412
Page pp.pp.7-12(MI),
#Pages 6
Date of Issue 2019-01-15 (MI)