Connection method of separated luminal regions of intestine from CT volumes

Masahiro Oda, Takayuki Kitasaka, Kazuhiro Furukawa, Osamu Watanabe, Takafumi Ando, Yoshiki Hirooka, Hidemi Goto, Kensaku Mori

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

抄録

This paper proposes a connection method of separated luminal regions of the intestine for Crohn's disease diagnosis. Crohn's disease is an inflammatory disease of the digestive tract. Capsule or conventional endoscopic diagnosis is performed for Crohn's disease diagnosis. However, parts of the intestines may not be observed in the endoscopic diagnosis if intestinal stenosis occurs. Endoscopes cannot pass through the stenosed parts. CT image-based diagnosis is developed as an alternative choice of the Crohn's disease. CT image-based diagnosis enables physicians to observe the entire intestines even if stenosed parts exist. CAD systems for Crohn's disease using CT volumes are recently developed. Such CAD systems need to reconstruct separated luminal regions of the intestines to analyze intestines. We propose a connection method of separated luminal regions of the intestines segmented from CT volumes. The luminal regions of the intestines are segmented from a CT volume. The centerlines of the luminal regions are calculated by using a thinning process. We enumerate all the possible sequences of the centerline segments. In this work, we newly introduce a condition using distance between connected ends points of the centerline segments. This condition eliminates unnatural connections of the centerline segments. Also, this condition reduces processing time. After generating a sequence list of the centerline segments, the correct sequence is obtained by using an evaluation function. We connect the luminal regions based on the correct sequence. Our experiments using four CT volumes showed that our method connected 6.5 out of 8.0 centerline segments per case. Processing times of the proposed method were reduced from the previous method.

本文言語英語
ホスト出版物のタイトルMedical Imaging 2015
ホスト出版物のサブタイトルComputer-Aided Diagnosis
編集者Lubomir M. Hadjiiski, Lubomir M. Hadjiiski, Georgia D. Tourassi, Georgia D. Tourassi
出版社SPIE
ISBN(電子版)9781628415049, 9781628415049
DOI
出版ステータス出版済み - 2015
外部発表はい
イベントSPIE Medical Imaging Symposium 2015: Computer-Aided Diagnosis - Orlando, 米国
継続期間: 22-02-201525-02-2015

出版物シリーズ

名前Progress in Biomedical Optics and Imaging - Proceedings of SPIE
9414
ISSN(印刷版)1605-7422

その他

その他SPIE Medical Imaging Symposium 2015: Computer-Aided Diagnosis
国/地域米国
CityOrlando
Period22-02-1525-02-15

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 生体材料
  • 原子分子物理学および光学
  • 放射線学、核医学およびイメージング

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