Presentation 2019-01-22
A Study on Automated Lymph Node Matching Method Considering Abdominal Organs Deformation in Follow-up CT Volumes
Tachi Koki, Masahiro Oda, Yuichiro Hayashi, Hayato Itoh, Yoshihiko Nakamura, Takayuki Kitasaka, Kazunari Misawa, Kensaku Mori,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In this paper, we report on an automated lymph node matching method considering deformation of abdominal organs in follow-up CT volumes. It is important to observe lymph node changes in follow-up CT volumes for confirming progress of cancer and treatment effect. However, observing temporal change of lymph nodes is complicated and time consuming because the position of lymph nodes changes by deformation of organs between follow-up CT volumes. Therefore, we perform automated lymph node matching considering deformation of liver and stomach between follow-up CT volumes. These organs occupies a large proportion in abdominal CT volumes. We analyzed deformation of organs using ICP and TPS-RPM, which are registration methods of point clouds. And we attempted automated lymph nodes matching in follow-up CT volumes considering the influence of the deformation on the surrounding area. The matching accuracy was 71.2% in 11 pairs of follow-up CT volumes.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Lymph node / Non-rigid registration / ICP / TPS-RPM / Temporal change
Paper # MI2018-84
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) A Study on Automated Lymph Node Matching Method Considering Abdominal Organs Deformation in Follow-up CT Volumes
Sub Title (in English)
Keyword(1) Lymph node
Keyword(2) Non-rigid registration
Keyword(3) ICP
Keyword(4) TPS-RPM
Keyword(5) Temporal change
1st Author's Name Tachi Koki
1st Author's Affiliation Nagoya University(Nagoya Univ.)
2nd Author's Name Masahiro Oda
2nd Author's Affiliation Nagoya University(Nagoya Univ.)
3rd Author's Name Yuichiro Hayashi
3rd Author's Affiliation Nagoya University(Nagoya Univ.)
4th Author's Name Hayato Itoh
4th Author's Affiliation Nagoya University(Nagoya Univ.)
5th Author's Name Yoshihiko Nakamura
5th Author's Affiliation National Institute of Technology, Tomakomai College(TNT)
6th Author's Name Takayuki Kitasaka
6th Author's Affiliation Faculty of Information Science, Aichi Institute of Technology(AIT)
7th Author's Name Kazunari Misawa
7th Author's Affiliation Aichi Cancer Center Hospital(ACC)
8th Author's Name Kensaku Mori
8th Author's Affiliation Nagoya University(Nagoya Univ.)
Date 2019-01-22
Paper # MI2018-84
Volume (vol) vol.118
Number (no) MI-412
Page pp.pp.97-102(MI),
#Pages 6
Date of Issue 2019-01-15 (MI)