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Paper Abstract and Keywords
Presentation 2008-01-25 15:50
Automated Visualization of Femoral and Acetabular Cartilages In MR Images of the Hip
Mahdieh Khanmohammadi, Reza A. Zoroofi (Univ. of Tehran), Yoshinobu Sato, Takashi Nishii, Hisashi Tanaka (Osaka Univ.) MI2007-102
Abstract (in Japanese) (See Japanese page) 
(in English) Visualization of the hip cartilages is clinically useful for clinicians and orthopedic surgeons. In this research, we propose a multi step technique for segmentation and thickness-map visualization of the femoral and acetabular cartilages based on clinically obtained multi-slice T1-weighted MR data. We first propose a technique for bone segmentation based on vector quantization technique and femoral head center estimation Next, we localize the hip joint space center-line by employing anatomical constraint and a customized double thresholding technique. We then segment the hip joint cartilages roughly using a Top-hat filter on first derivative images. We next utilize the articular-space center-line to segment the acetabular and femoral head cartilages. We finally apply a method for thickness measurement based on extermum points found from images enhanced by directional derivative filters. The feasibility of the proposed techniques is evaluated in the presence of 40 hips including 2400 MR images.
Keyword (in Japanese) (See Japanese page) 
(in English) Bone Segmentation / Singular Value Decomposition / Hough Transform / Directional Derivative Filters / Cartilage Segmentation / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 461, MI2007-102, pp. 207-210, Jan. 2008.
Paper # MI2007-102 
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 MI2007-102

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 English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Automated Visualization of Femoral and Acetabular Cartilages In MR Images of the Hip 
Sub Title (in English)  
Keyword(1) Bone Segmentation  
Keyword(2) Singular Value Decomposition  
Keyword(3) Hough Transform  
Keyword(4) Directional Derivative Filters  
Keyword(5) Cartilage Segmentation  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Mahdieh Khanmohammadi  
1st Author's Affiliation University of Tehran (Univ. of Tehran)
2nd Author's Name Reza A. Zoroofi  
2nd Author's Affiliation University of Tehran (Univ. of Tehran)
3rd Author's Name Yoshinobu Sato  
3rd Author's Affiliation Osaka University Medical School (Osaka Univ.)
4th Author's Name Takashi Nishii  
4th Author's Affiliation Osaka University Medical School (Osaka Univ.)
5th Author's Name Hisashi Tanaka  
5th Author's Affiliation Osaka University Medical School (Osaka Univ.)
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Speaker Author-2 
Date Time 2008-01-25 15:50:00 
Presentation Time 10 minutes 
Registration for MI 
Paper # MI2007-102 
Volume (vol) vol.107 
Number (no) no.461 
Page pp.207-210 
#Pages 4 
Date of Issue 2008-01-18 (MI) 

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