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Proceedings Paper

Automatic abdominal lymph node detection method based on local intensity structure analysis from 3D x-ray CT images
Author(s): Yoshihiko Nakamura; Yukitaka Nimura; Takayuki Kitasaka; Shinji Mizuno; Kazuhiro Furukawa; Hidemi Goto; Michitaka Fujiwara; Kazunari Misawa; Masaaki Ito; Shigeru Nawano; Kensaku Mori
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Paper Abstract

This paper presents an automated method of abdominal lymph node detection to aid the preoperative diagnosis of abdominal cancer surgery. In abdominal cancer surgery, surgeons must resect not only tumors and metastases but also lymph nodes that might have a metastasis. This procedure is called lymphadenectomy or lymph node dissection. Insufficient lymphadenectomy carries a high risk for relapse. However, excessive resection decreases a patient's quality of life. Therefore, it is important to identify the location and the structure of lymph nodes to make a suitable surgical plan. The proposed method consists of candidate lymph node detection and false positive reduction. Candidate lymph nodes are detected using a multi-scale blob-like enhancement filter based on local intensity structure analysis. To reduce false positives, the proposed method uses a classifier based on support vector machine with the texture and shape information. The experimental results reveal that it detects 70.5% of the lymph nodes with 13.0 false positives per case.

Paper Details

Date Published: 18 March 2013
PDF: 7 pages
Proc. SPIE 8670, Medical Imaging 2013: Computer-Aided Diagnosis, 86701K (18 March 2013); doi: 10.1117/12.2008282
Show Author Affiliations
Yoshihiko Nakamura, Nagoya Univ. (Japan)
Yukitaka Nimura, Nagoya Univ. (Japan)
Takayuki Kitasaka, Aichi Institute of Technology (Japan)
Shinji Mizuno, Aichi Institute of Technology (Japan)
Kazuhiro Furukawa, Nagoya Univ. School of Medicine (Japan)
Hidemi Goto, Nagoya Univ. School of Medicine (Japan)
Michitaka Fujiwara, Nagoya Univ. School of Medicine (Japan)
Kazunari Misawa, Aichi Cancer Ctr. Hospital (Japan)
Masaaki Ito, National Cancer Ctr. Hospital East (Japan)
Shigeru Nawano, International Univ. of Health and Welfare Mita Hospital (Japan)
Kensaku Mori, Nagoya Univ. (Japan)

Published in SPIE Proceedings Vol. 8670:
Medical Imaging 2013: Computer-Aided Diagnosis
Carol L. Novak; Stephen Aylward, Editor(s)

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