Automatic segmentation of magnetic resonance images of the trans-femoral residual limb

An automatic algorithm for the extraction of the skin and bone boundaries f rom axial magnetic resonance images of the residual limb of trans-femoral a mputees is presented. The method makes use of K-means clustering and mathem atical morphology. Statistical analysis of the results indicates that the c omputer-generated boundaries compare favourably to those drawn by human obs ervers. The boundaries may be used in biomechanical modelling of the intera ction between the residual limb and the prosthetic socket. The limb/socket interface determines the quality of prosthetic fit, therefore knowledge of this interface is important for the improvement of socket design in order t o achieve patient comfort and mobility. (C) 1999 IPEM. Published by Elsevie r Science Ltd. All rights reserved.