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| Presentation | 2008-01-26 13:00 A study on an improved method for bronchoscope tracking using an electromagnetic tracker without fiducial markers Daisuke Deguchi, Kazuyoshi Ishitani, Takayuki Kitasaka, Kensaku Mori, Yasuhito Suenaga, Kazuyoshi Imaizumi, Yoshinori Hasegawa (Nagoya Univ.)  MI2007-141 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper proposes an improved method for tracking the position and orientation of a bronchoscope without fiducial markers by using an ultra-tiny electromagnetic tracker. In the last year, we proposed the method for tracking bronchoscope without fiducial markers by matching the outputs of the tracker and bronchi regions extracted from the CT image. However, the accuracy of the transformation matrix heavily depended on the number of branches the bronchoscope utilized, since an output from the magnetic sensor close to branching points may correspond to a few branches. To improve the accuracy of the transformation matrix, the new method proposes the stable branch selection procedure that uses view directions of the bronchoscope and running directions of bronchial branches. We applied the proposed method to a rubber bronchial model. Experimental results showed that the registration error of the proposed method was about 2.0 mm in average, and the proposed method could estimate the transformation matrix more accurately and quickly than the previous method. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | navigation / virtual endoscopy / bronchoscope / motion tracking / positional sensor / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 461, MI2007-141, pp. 423-429, Jan. 2008. | |
| Paper # | MI2007-141 | |
| Date of Issue | 2008-01-18 (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) | |
| Download PDF | MI2007-141 |
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| Conference Information | |
| Committee | MI |
| Conference Date | 2008-01-25 - 2008-01-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Naha-Bunka-Tenbusu |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Medical Imaging |
| Paper Information | |
| Registration To | MI |
| Conference Code | 2008-01-MI |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on an improved method for bronchoscope tracking using an electromagnetic tracker without fiducial markers |
| Sub Title (in English) | |
| Keyword(1) | navigation |
| Keyword(2) | virtual endoscopy |
| Keyword(3) | bronchoscope |
| Keyword(4) | motion tracking |
| Keyword(5) | positional sensor |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Daisuke Deguchi |
| 1st Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 2nd Author's Name | Kazuyoshi Ishitani |
| 2nd Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 3rd Author's Name | Takayuki Kitasaka |
| 3rd Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 4th Author's Name | Kensaku Mori |
| 4th Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 5th Author's Name | Yasuhito Suenaga |
| 5th Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 6th Author's Name | Kazuyoshi Imaizumi |
| 6th Author's Affiliation | Nagoya University (Nagoya Univ.) |
| 7th Author's Name | Yoshinori Hasegawa |
| 7th Author's Affiliation | Nagoya University (Nagoya Univ.) |
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| Speaker | Author-1 |
| Date Time | 2008-01-26 13:00:00 |
| Presentation Time | 60 minutes |
| Registration for | MI |
| Paper # | MI2007-141 |
| Volume (vol) | vol.107 |
| Number (no) | no.461 |
| Page | pp.423-429 |
| #Pages | 7 |
| Date of Issue | 2008-01-18 (MI) |
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