Presentation 2019-09-04
Preliminary investigation on decomposition of individual muscles and bones of lower extremity from single radiograph using CycleGAN
Naoki Nakanishi, Yuta Hiasa, Yoshito Otake, Masaki Takao, Nobuhiko Sugano, Yoshinobu Sato,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Extraction of musculoskeletal structures of lower extremity from medical images is useful for quantitatively understanding the process of muscle atrophy caused by disease and the recovery process during the rehabilitation. In this study, we focus on extraction of individual musculoskeletal structures from single radiograph that can be acquired with high spatial resolution and low radiation dose. Then, we treat the extraction problem in real radiograph as the image translation problem from a real radiograph to multiple digitally reconstructed radiographs generated using CT image and the 3D mask of individual muscles which was obtained by a previously proposed automatic segmentation method. Since registration of real and synthetic radiographs is a challenging problem especially for the muscle structures, we introduce an image translation method based on unpaired training data set using CycleGAN. In this paper, simulation and real image experiments were conducted using CT images and real radiographs of 475 cases.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Muscles and bones of lower extremity / Single radiograph / CycleGAN / Decomposition
Paper # PRMU2019-16,MI2019-35
Date of Issue 2019-08-28 (PRMU, MI)

Conference Information
Committee PRMU / MI / IPSJ-CVIM
Conference Date 2019/9/4(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yoichi Sato(Univ. of Tokyo) / Yoshiki Kawata(Tokushima Univ.)
Vice Chair Toru Tamaki(Hiroshima Univ.) / Akisato Kimura(NTT) / Takayuki Kitasaka(Aichi Inst. of Tech.) / Hidekata Hontani(Nagoya Inst. of Tech.)
Secretary Toru Tamaki(NTT) / Akisato Kimura(OMRON SINICX) / Takayuki Kitasaka(Yamaguchi Univ.) / Hidekata Hontani(Univ. of Hyogo)
Assistant Yusuke Uchida(DeNA) / Takayoshi Yamashita(Chubu Univ.) / Hotaka Takizawa(Tsukuba Univ.) / Yoshito Otake(NAIST)

Paper Information
Registration To Technical Committee on Pattern Recognition and Media Understanding / Technical Committee on Medical Imaging / Special Interest Group on Computer Vision and Image Media
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Preliminary investigation on decomposition of individual muscles and bones of lower extremity from single radiograph using CycleGAN
Sub Title (in English)
Keyword(1) Muscles and bones of lower extremity
Keyword(2) Single radiograph
Keyword(3) CycleGAN
Keyword(4) Decomposition
1st Author's Name Naoki Nakanishi
1st Author's Affiliation Nara Institute of Science and Technology(NAIST)
2nd Author's Name Yuta Hiasa
2nd Author's Affiliation Nara Institute of Science and Technology(NAIST)
3rd Author's Name Yoshito Otake
3rd Author's Affiliation Nara Institute of Science and Technology(NAIST)
4th Author's Name Masaki Takao
4th Author's Affiliation Oaska University(Osaka Univ.)
5th Author's Name Nobuhiko Sugano
5th Author's Affiliation Oaska University(Osaka Univ.)
6th Author's Name Yoshinobu Sato
6th Author's Affiliation Nara Institute of Science and Technology(NAIST)
Date 2019-09-04
Paper # PRMU2019-16,MI2019-35
Volume (vol) vol.119
Number (no) PRMU-192,MI-193
Page pp.pp.25-30(PRMU), pp.25-30(MI),
#Pages 6
Date of Issue 2019-08-28 (PRMU, MI)