講演抄録/キーワード |
講演名 |
2009-01-20 11:10
False positive rejection for detecting tumors in lung area of FDG-PET/CT image ○Natsuki Kano・Hidekata Hontani(Nagoya Inst. of Tech.)・Tohoru Takeda(Univ. of Tsukuba)・Yorihisa Watanabe(Yamagata Saisei Hospital) MI2008-112 |
抄録 |
(和) |
In this paper, we propose a method that detects malignant tumors in a lung area of a given FDG-PET/CT image. Our method firstly extracts tumor candidates by binarizing the PET image, and then rejects false positives included in them. These false ones often include a part of the heart area because of its high FDG uptake. For this rejection, we constructed an eigenspace representation of FDG-PET images of normal lungs. Projecting the given image onto this eigenspace, we can suppress abnormal regions in the given image and hence reject the false positives in the candidates. Experimental results show that the proposed method reduces the number of false positives without missing the true ones. |
(英) |
In this paper, we propose a method that detects malignant tumors in a lung area of a given FDG-PET/CT image. Our method firstly extracts tumor candidates by binarizing the PET image, and then rejects false positives included in them. These false ones often include a part of the heart area because of its high FDG uptake. For this rejection, we constructed an eigenspace representation of FDG-PET images of normal lungs. Projecting the given image onto this eigenspace, we can suppress abnormal regions in the given image and hence reject the false positives in the candidates. Experimental results show that the proposed method reduces the number of false positives without missing the true ones. |
キーワード |
(和) |
/ / / / / / / |
(英) |
PET/CT / CAD / Malignant Tumor Detection / Eigenspace / / / / |
文献情報 |
信学技報, vol. 108, no. 385, MI2008-112, pp. 247-251, 2009年1月. |
資料番号 |
MI2008-112 |
発行日 |
2009-01-12 (MI) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
MI2008-112 |