| Paper Abstract and Keywords |
| Presentation |
2012-01-20 11:05
Development of a lymph node detection method from 3D abdominal CT images using multi shape ellipsoidal structure detection filter Masahiro Oda (Nagoya Univ.), Takayuki Kitasaka (Aichi Institute of Technology), Michitaka Fujiwara (Nagoya Univ.), Kazunari Misawa (Aichi Cancer Center), Kensaku Mori (Nagoya Univ.) MI2011-123 |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
This paper proposes a lymph node detection method which utilizing a multi-shape and multi-scale ellipsoidal structure detection filter. Detection of the enlarged lymph nodes is required in diagnosis of metastatic cancer using a computer aided diagnosis system. Automated detection of the enlarged lymph nodes improves efficiency of cancer diagnosis. This paper describes a method for detecting gastric lymph nodes from abdominal CT images. In CT images, the lymph node has higher CT values than the surrounding regions. Shapes of the lymph nodes are sphere or ellipsoid. We utilized a multi-shape and multi-scale ellipsoidal structure detection filter based on local intensity structure analysis to detect the lymph nodes. A Hessian matrix is calculated from a polynomial which approximates a local CT value structure. We utilize three eigenvalues of the Hessian matrix in the detection filter. In a ellipsoidal structure, values of the eigenvalues correspond lengths of the long and short axes of the ellipsoidal structure. The detection filter outputs high values if the eigenvalues take particular values of the ellipsoidal structure. Experimental results using 6 cases of CT images showed that our method can detect 69.2\% of lymph nodes. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
CT image / lymph node detection / stomach / ellipsoidal structure detection filter / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 111, no. 389, MI2011-123, pp. 251-256, Jan. 2012. |
| Paper # |
MI2011-123 |
| Date of Issue |
2012-01-12 (MI) |
| ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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MI2011-123 |
| Conference Information |
| Committee |
MI |
| Conference Date |
2012-01-19 - 2012-01-20 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
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| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
MI |
| Conference Code |
2012-01-MI |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Development of a lymph node detection method from 3D abdominal CT images using multi shape ellipsoidal structure detection filter |
| Sub Title (in English) |
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| Keyword(1) |
CT image |
| Keyword(2) |
lymph node detection |
| Keyword(3) |
stomach |
| Keyword(4) |
ellipsoidal structure detection filter |
| Keyword(5) |
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| Keyword(6) |
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| 1st Author's Name |
Masahiro Oda |
| 1st Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 2nd Author's Name |
Takayuki Kitasaka |
| 2nd Author's Affiliation |
Aichi Institute of Technology (Aichi Institute of Technology) |
| 3rd Author's Name |
Michitaka Fujiwara |
| 3rd Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 4th Author's Name |
Kazunari Misawa |
| 4th Author's Affiliation |
Aichi Cancer Center (Aichi Cancer Center) |
| 5th Author's Name |
Kensaku Mori |
| 5th Author's Affiliation |
Nagoya University (Nagoya Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2012-01-20 11:05:00 |
| Presentation Time |
15 minutes |
| Registration for |
MI |
| Paper # |
MI2011-123 |
| Volume (vol) |
vol.111 |
| Number (no) |
no.389 |
| Page |
pp.251-256 |
| #Pages |
6 |
| Date of Issue |
2012-01-12 (MI) |