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| Presentation | 2010-05-21 16:10 A semi-automatic extraction of the contour of the articular cartilage from MR images of the knee Hiroki Sato, Toyohiko Hayashi, Go Omori, Satoshi Watanabe, Keisuke Sasagawa, Yoshinobu Maeda, Tetsuya Watanabe (Niigata Univ.)  MBE2010-8 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Knee motion analysis has many clinical applications such as diagnosis of knee diseases and evaluation of postoperative knee functions. For analyzing knee motion in three-dimensions, a 3-D model based approaches were introduced recently by combining a fluoroscopic image-sequence of knee motion and a 3-D model of related knee bones. In order to expand such analysis into that including the articular cartilage, we need a 3-D model of the cartilage as well as bones. Then this paper proposed a semi-automatic extraction of cartilage contour in MR images. This extraction method has an advantage that a contour of the cartilage partly unclear in MR image can be estimated iteratively by using a function of evaluating the overall difference between present contour and that estimated from its neighboring gray distribution, from an initial contour roughly digitized manually. To evaluate its validity, we carried out several experiments using two different MR images of the knee. All empirical results suggested that our method would have a potential of easily extracting an accurate contour of the cartilage with high reproducibility. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | MR images / articular cartilage contour / knee motion analysis / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 52, MBE2010-8, pp. 41-46, May 2010. | |
| Paper # | MBE2010-8 | |
| Date of Issue | 2010-05-14 (MBE) | |
| 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) | |
| Download PDF | MBE2010-8 |
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| Conference Information | |
| Committee | MBE |
| Conference Date | 2010-05-21 - 2010-05-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Toyama Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | ME in general |
| Paper Information | |
| Registration To | MBE |
| Conference Code | 2010-05-MBE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A semi-automatic extraction of the contour of the articular cartilage from MR images of the knee |
| Sub Title (in English) | |
| Keyword(1) | MR images |
| Keyword(2) | articular cartilage contour |
| Keyword(3) | knee motion analysis |
| Keyword(4) | |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Hiroki Sato |
| 1st Author's Affiliation | Niigata University (Niigata Univ.) |
| 2nd Author's Name | Toyohiko Hayashi |
| 2nd Author's Affiliation | Niigata University (Niigata Univ.) |
| 3rd Author's Name | Go Omori |
| 3rd Author's Affiliation | Niigata University (Niigata Univ.) |
| 4th Author's Name | Satoshi Watanabe |
| 4th Author's Affiliation | Niigata University (Niigata Univ.) |
| 5th Author's Name | Keisuke Sasagawa |
| 5th Author's Affiliation | Niigata University (Niigata Univ.) |
| 6th Author's Name | Yoshinobu Maeda |
| 6th Author's Affiliation | Niigata University (Niigata Univ.) |
| 7th Author's Name | Tetsuya Watanabe |
| 7th Author's Affiliation | Niigata University (Niigata Univ.) |
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| Speaker | 1 |
| Date Time | 2010-05-21 16:10:00 |
| Presentation Time | 25 |
| Registration for | MBE |
| Paper # | IEICE-MBE2010-8 |
| Volume (vol) | IEICE-110 |
| Number (no) | no.52 |
| Page | pp.41-46 |
| #Pages | IEICE-6 |
| Date of Issue | IEICE-MBE-2010-05-14 |
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