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Proceedings Paper

Ultrasonic b-scan image compounding technique for prosthetic socket design
Author(s): Kefu Xue; Ping He; Huimin Fu; Hisham Bismar
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Paper Abstract

Prosthetic socket design is the most important aspect of the fit of a lower extremity prosthesis. The comfort and mobility of wearing a prosthetic socket mainly depends on the design of weight bearing characteristics of the socket. The weight bearing characteristics of a socket are determined by the relative positions among the tissues (such as bones, muscles, and fat) of the residual limb and the wall of the socket. Therefore, socket fitting cannot be guaranteed if the internal structural information of a residual limb is not made available to the prosthetist. Current prosthetic socket design and manufacture processes are disadvantaged by the inherent difficulties in determining the weight bearing characteristics of a socket due to the lack of crucial information about the internal structure of the residual limb, such as bone position, and muscle, and fat distribution. This disadvantage can be overcome through the use of an ultrasound imaging system and a computer-aided socket design system. The discussion of the complete system is out of the scope of this paper. An ultrasound imaging algorithm which provides the external shape of the limb, the bone position, and the texture pattern of the soft tissues within the limb is presented in this paper. The algorithm using the Compound B-scan imaging principle combined with geometrical transformation and statistical information faithfully measures and reconstructs with topographical shape and internal structure information of a residual limb.

Paper Details

Date Published: 1 November 1991
PDF: 10 pages
Proc. SPIE 1606, Visual Communications and Image Processing '91: Image Processing, (1 November 1991); doi: 10.1117/12.50356
Show Author Affiliations
Kefu Xue, Wright State Univ. (United States)
Ping He, Wright State Univ. (United States)
Huimin Fu, Wright State Univ. (United States)
Hisham Bismar, Wright State Univ. (United States)

Published in SPIE Proceedings Vol. 1606:
Visual Communications and Image Processing '91: Image Processing
Kou-Hu Tzou; Toshio Koga, Editor(s)

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