| 講演抄録／キーワード |
| 講演名 |
2005-09-22 15:30
Proposal of Atlas-guided Eigen-organ Method for Location Detection of Multi-Organs in Three Dimensional Medical Images
○Cong Yao・Takashige Wada・Akinobu Shimizu・Hidefumi Kobatake（Tokyo Univ of Agri. and Tech.）・Shigeru Nawano（National Cancer Center Hosp. East） |
| 抄録 |
（和） |
This paper proposes an approach for the location detection of multi-organs in volumetric medical images. Local eigen-organ spaces are constructed according to different types of training organs. Global eigen-space, which describes the spatial relationship among organs, is also constructed. In this method, each volume of interest in the abdomen CT image is projected into the local eigen-organ spaces and a number of candidate locations are selected, then final decision is made by the global eigen-space. We use the probabilistic atlas of organs to skip locations with low probability and to guide the selection of candidate locations. The proposed method produces an average coincidence ratio of 71.94% for 11 organs which was estimated by leave-one-out method using 10 volumetric abdomen CT images. |
| （英） |
This paper proposes an approach for the location detection of multi-organs in volumetric medical images. Local eigen-organ spaces are constructed according to different types of training organs. Global eigen-space, which describes the spatial relationship among organs, is also constructed. In this method, each volume of interest in the abdomen CT image is projected into the local eigen-organ spaces and a number of candidate locations are selected, then final decision is made by the global eigen-space. We use the probabilistic atlas of organs to skip locations with low probability and to guide the selection of candidate locations. The proposed method produces an average coincidence ratio of 71.94% for 11 organs which was estimated by leave-one-out method using 10 volumetric abdomen CT images. |
| キーワード |
（和） |
Eigen-organ / PCA / probabilistic atlas / medical image / / / / |
| （英） |
Eigen-organ / PCA / probabilistic atlas / medical image / / / / |
| 文献情報 |
信学技報, vol. 105, no. 303, MI2005-48, pp. 97-102, 2005年9月. |
| 資料番号 |
MI2005-48 |
| 発行日 |
2005-09-14 (MI) |
| ISSN |
Print edition: ISSN 0913-5685 |
| PDFダウンロード |
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