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Paper Abstract and Keywords
Presentation 2010-11-19 13:55
Measurement of rhe position and orientation of the humerus using a combination of fluoroscopic image and 2D-3D registration
Noriaki Nagasawa, Toyohiko Hayashi (Niigata Univ.), Hiroshi Tanaka, Masahiko Komai, Hiroki Ninomiya (Nobuhara Hospital), Yoshinobu Maeda, Tetsuya Watanabe (Niigata Univ.), Katsuya Nobuhara (Nobuhara Hospital) MBE2010-49
Abstract (in Japanese) (See Japanese page) 
(in English) Video Fluoroscopy (VF) is widely used in clinic for recording in-vivo shoulder joint motions in two dimensions. In order to achieve VF-based 3-D measurement, a method using a combination of fluoroscopic image and a 3-D model of the bone has been developed by using a 2D/3D registration technique. Since its measurement accuracy depends on the bone shape and other measurement conditions, the measurement accuracy of the humeral position and orientation also has to be validated before measurement. To achieve this, we developed an empirical system using a humeral bone model, a bone-fixation equipment with high reproducibility and an X-ray projection calibration frame. Using this system, we validated the accuracy in the three different humeral orientations within the scapula plane with an elevation angle of 30[deg], 60[deg] and 90[deg]. The accuracy in the orientation was verified to be less than 1[deg] on average in adduction/abduction and horizontal adduction/abduction, and to be less than 4[deg] on average in internal and external rotation. The accuracy in the position was verified to be less than 1[mm], 2[mm] and 5[mm] on average in the supero-inferior, medio-lateral and antero-posterior positions, respectively.
Keyword (in Japanese) (See Japanese page) 
(in English) humerus / fluoroscopic image / 2D-3D registration / accuracy verification / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 294, MBE2010-49, pp. 75-80, Nov. 2010.
Paper # MBE2010-49 
Date of Issue 2010-11-11 (MBE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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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Conference Information
Committee MBE NC  
Conference Date 2010-11-18 - 2010-11-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) BCI/BMI, NC and MBE 
Paper Information
Registration To MBE 
Conference Code 2010-11-MBE-NC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Measurement of rhe position and orientation of the humerus using a combination of fluoroscopic image and 2D-3D registration 
Sub Title (in English)  
Keyword(1) humerus  
Keyword(2) fluoroscopic image  
Keyword(3) 2D-3D registration  
Keyword(4) accuracy verification  
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1st Author's Name Noriaki Nagasawa  
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 Hiroshi Tanaka  
3rd Author's Affiliation Nobuhara Hospital and Institute Biomechanics (Nobuhara Hospital)
4th Author's Name Masahiko Komai  
4th Author's Affiliation Nobuhara Hospital and Institute Biomechanics (Nobuhara Hospital)
5th Author's Name Hiroki Ninomiya  
5th Author's Affiliation Nobuhara Hospital and Institute Biomechanics (Nobuhara Hospital)
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.)
8th Author's Name Katsuya Nobuhara  
8th Author's Affiliation Nobuhara Hospital and Institute Biomechanics (Nobuhara Hospital)
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Speaker Author-1 
Date Time 2010-11-19 13:55:00 
Presentation Time 25 minutes 
Registration for MBE 
Paper # MBE2010-49 
Volume (vol) vol.110 
Number (no) no.294 
Page pp.75-80 
#Pages 6 
Date of Issue 2010-11-11 (MBE) 

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