A novel ultrasound-based lower extremity motion tracking system

Kenan Niu*, Victor Sluiter, Jasper Homminga, André Sprengers, Nico Verdonschot

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingChapterAcademicpeer-review

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    Abstract

    Tracking joint motion of the lower extremity is important for human motion analysis. In this study, we present a novel ultrasound-based motion tracking system for measuring three-dimensional (3D) position and orientation of the femur and tibia in 3D space and quantifying tibiofemoral kinematics under dynamic conditions. As ultrasound is capable of detecting underlying bone surface noninvasively through multiple layers of soft tissues, an integration of multiple A-mode ultrasound transducers with a conventional motion tracking system provides a new approach to track the motion of bone segments during dynamic conditions. To demonstrate the technical and clinical feasibilities of this concept, an in vivo experiment was conducted. For this purpose the kinematics of healthy individuals were determined in treadmill walking conditions and stair descending tasks. The results clearly demonstrated the potential of tracking skeletal motion of the lower extremity and measuring six-degrees-of-freedom (6-DOF) tibiofemoral kinematics and related kinematic alterations caused by a variety of gait parameters. It was concluded that this prototyping system has great potential to measure human kinematics in an ambulant, non-radiative, and noninvasive manner.

    Original languageEnglish
    Title of host publicationIntelligent Orthopaedics
    Subtitle of host publicationArtificial Intelligence and Smart Image-guided Technology for Orthopaedics
    EditorsGuoyan Zheng, Wei Tian, Xiahai Zhuang
    PublisherSpringer
    Pages131-142
    Number of pages12
    ISBN (Electronic)978-981-13-1396-7
    ISBN (Print)978-981-13-1395-0
    DOIs
    Publication statusE-pub ahead of print/First online - 11 Oct 2018

    Publication series

    NameAdvances in Experimental Medicine and Biology
    Volume1093
    ISSN (Print)0065-2598
    ISSN (Electronic)2214-8019

    Keywords

    • A-mode ultrasound
    • Gait analysis
    • Joint motion tracking
    • Kinematics
    • Knee
    • Lower extremity

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