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Ultrasound imaging in lower limb prosthetics

Douglas, T. and Solomonidis, S.E. and Sandham, W.A. and Spence, W.D. (2002) Ultrasound imaging in lower limb prosthetics. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 10 (1). pp. 11-21. ISSN 1534-4320

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Abstract

The biomechanical interaction between the residual limb and the prosthetic socket determines the quality of fit of the socket in lower limb prosthetics. An understanding of this interaction and the development of quantitative measures to predict the quality of fit of the socket are important for optimal socket design. Finite-element modeling is used widely for biomechanical modeling of the limb/socket interaction and requires information on the internal and external geometry of the residual limb. Volumetric imaging methods such as X-ray computed tomography, magnetic resonance imaging, and ultrasound have been used to obtain residual limb shape information. Of these modalities, ultrasound has been introduced most recently and its development for visualization in prosthetics is the least mature. This paper reviews ultrasound image acquisition and processing methods as they have been applied in lower limb prosthetics.