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    Multi-Rigid Image Segmentation and Registration for the Analysis of Joint Motion From Three-Dimensional Magnetic Resonance Imaging

    Source: Journal of Biomechanical Engineering:;2011:;volume( 133 ):;issue: 010::page 101005
    Author:
    Yangqiu Hu
    ,
    William R. Ledoux
    ,
    Michael Fassbind
    ,
    Eric S. Rohr
    ,
    Bruce J. Sangeorzan
    ,
    David Haynor
    DOI: 10.1115/1.4005175
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: We report an image segmentation and registration method for studying joint morphology and kinematics from in vivo magnetic resonance imaging (MRI) scans and its application to the analysis of foot and ankle joint motion. Using an MRI-compatible positioning device, a foot was scanned in a single neutral and seven other positions ranging from maximum plantar flexion, inversion, and internal rotation to maximum dorsiflexion, eversion, and external rotation. A segmentation method combining graph cuts and level set was developed. In the subsequent registration step, a separate rigid body transformation for each bone was obtained by registering the neutral position dataset to each of the other ones, which produced an accurate description of the motion between them. The segmentation algorithm allowed a user to interactively delineate 14 foot bones in the neutral position volume in less than 30 min total (user and computer processing unit [CPU]) time. Registration to the seven other positions took approximately 10 additional minutes of user time and 5.25 h of CPU time. For validation, our results were compared with those obtained from 3DViewnix, a semiautomatic segmentation program. We achieved excellent agreement, with volume overlap ratios greater than 88% for all bones excluding the intermediate cuneiform and the lesser metatarsals. For the registration of the neutral scan to the seven other positions, the average overlap ratio is 94.25%, while the minimum overlap ratio is 89.49% for the tibia between the neutral position and position 1, which might be due to different fields of view (FOV). To process a single foot in eight positions, our tool requires only minimal user interaction time (less than 30 min total), a level of improvement that has the potential to make joint motion analysis from MRI practical in research and clinical applications.
    keyword(s): Bone , Image segmentation AND Magnetic resonance imaging ,
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      Multi-Rigid Image Segmentation and Registration for the Analysis of Joint Motion From Three-Dimensional Magnetic Resonance Imaging

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    http://yetl.yabesh.ir/yetl1/handle/yetl/145365
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    • Journal of Biomechanical Engineering

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    contributor authorYangqiu Hu
    contributor authorWilliam R. Ledoux
    contributor authorMichael Fassbind
    contributor authorEric S. Rohr
    contributor authorBruce J. Sangeorzan
    contributor authorDavid Haynor
    date accessioned2017-05-09T00:42:20Z
    date available2017-05-09T00:42:20Z
    date copyrightOctober, 2011
    date issued2011
    identifier issn0148-0731
    identifier otherJBENDY-27223#101005_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/145365
    description abstractWe report an image segmentation and registration method for studying joint morphology and kinematics from in vivo magnetic resonance imaging (MRI) scans and its application to the analysis of foot and ankle joint motion. Using an MRI-compatible positioning device, a foot was scanned in a single neutral and seven other positions ranging from maximum plantar flexion, inversion, and internal rotation to maximum dorsiflexion, eversion, and external rotation. A segmentation method combining graph cuts and level set was developed. In the subsequent registration step, a separate rigid body transformation for each bone was obtained by registering the neutral position dataset to each of the other ones, which produced an accurate description of the motion between them. The segmentation algorithm allowed a user to interactively delineate 14 foot bones in the neutral position volume in less than 30 min total (user and computer processing unit [CPU]) time. Registration to the seven other positions took approximately 10 additional minutes of user time and 5.25 h of CPU time. For validation, our results were compared with those obtained from 3DViewnix, a semiautomatic segmentation program. We achieved excellent agreement, with volume overlap ratios greater than 88% for all bones excluding the intermediate cuneiform and the lesser metatarsals. For the registration of the neutral scan to the seven other positions, the average overlap ratio is 94.25%, while the minimum overlap ratio is 89.49% for the tibia between the neutral position and position 1, which might be due to different fields of view (FOV). To process a single foot in eight positions, our tool requires only minimal user interaction time (less than 30 min total), a level of improvement that has the potential to make joint motion analysis from MRI practical in research and clinical applications.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleMulti-Rigid Image Segmentation and Registration for the Analysis of Joint Motion From Three-Dimensional Magnetic Resonance Imaging
    typeJournal Paper
    journal volume133
    journal issue10
    journal titleJournal of Biomechanical Engineering
    identifier doi10.1115/1.4005175
    journal fristpage101005
    identifier eissn1528-8951
    keywordsBone
    keywordsImage segmentation AND Magnetic resonance imaging
    treeJournal of Biomechanical Engineering:;2011:;volume( 133 ):;issue: 010
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
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