System for Three Dimensional Biomechanical Analysis of Joints.
    
    
        
    
    
        
        Proc. SPIE 4683, 476-483 (2002)
    
    
 	
    
	
	
	
		
		
			Open Access Green as soon as Postprint is submitted to ZB.
		
     
    
      
      
	
	    We developed 3D MR based image processing methods for biomechanical analysis of joints. These methods provide quantitative data on the morphological distribution of the joint cartilage as well as biomechanical analysis of relative translation and rotation of joints. After image data acquisition in an open MR system, the segmentation of the different joint structures was performed by a semi automatic technique based on a gray value oriented region growing algorithm. After segmentation 3D reconstructions of cartilage and bone surfaces were performed. Principal axis decomposition is used to calculate a reproducible tibia plateau based coordinate system that allows the determination of relative rotation and translation of the condyles and menisci in relation to the tibia plateau. The analysis of the femoral movement is based on a reproducible, semi automatic calculated epicondylar axis. The analysis showed a posterior translation of the meniscus and even more of the femur condyles in healthy knees and in knees with an insufficiency of the anterior cruciate ligament (ACL).
	
	
	    
	
       
      
	
	    
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        Publication type
        Article: Journal article
    
 
    
        Document type
        Scientific Article
    
 
    
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        Keywords
        Knee; cartilage thickness; anterior cruciate ligament; translation; MR imaging; 3D reconstruction
    
 
    
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        Language
        english
    
 
    
        Publication Year
        2002
    
 
    
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        ISSN (print) / ISBN
        0277-786X
    
 
    
        e-ISSN
        1996-756X
    
 
    
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        Conference Title
        Medical Imaging 2002 : Physiology and Functional from Multidimensional Images,  San Diego, USA, 24.02. - 26.02.2002
    
 
	
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	    Volume: 4683,  
	    Issue: ,  
	    Pages: 476-483 
	    Article Number: ,  
	    Supplement: ,  
	
    
 
    
        
            Series
            Proceedings of SPIE ; 4683 Progress in Biomedical Optics and Imaging ; 3
        
 
        
            Publisher
            SPIE
        
 
        
            Publishing Place
            Bellingham, WA
        
 
	
        
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        Reviewing status
        Peer reviewed
    
 
     
    
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        Research field(s)
        Enabling and Novel Technologies
    
 
    
        PSP Element(s)
        FE 75594
    
 
    
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        Erfassungsdatum
        2002-09-11