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Automatic initialisation of 3D deformable models for cartilage segmentation

Fripp, J; Crozier, S; Ourselin, S; Warfield, S; (2005) Automatic initialisation of 3D deformable models for cartilage segmentation. Presented at: UNSPECIFIED.

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Abstract

Deformable models are a highly accurate and flexible approach to segmenting structures in medical images. The primary drawback of deformable models is that they are sensitive to initialisation, with accurate and robust results often requiring initialisation close to the true object in the image. Automatically obtaining a good initialisation is problematic for many structures in the body. The cartilages of the knee are a thin elastic material that cover the ends of the bone, absorbing shock and allowing smooth movement. The degeneration of these cartilages characterize the progression of osteoarthritis. The state of the art in the segmentation of the cartilage are 2D semi-automated algorithms. These algorithms require significant time and supervison by a clinical expert, so the development of an automatic segmentation algorithm for the cartilages is an important clinical goal. In this paper we present an approach towards this goal that allows us to automatically providing a good initialisation for deformable models of the patella cartilage, by utilising the strong spatial relationship of the cartilage to the underlying bone. © 2005 IEEE.

Type: Conference item (UNSPECIFIED)
Title: Automatic initialisation of 3D deformable models for cartilage segmentation
ISBN: 0769524672
ISBN-13: 9780769524672
DOI: 10.1109/DICTA.2005.1578172
UCL classification: UCL > School of BEAMS > Faculty of Engineering Science
UCL > School of BEAMS > Faculty of Engineering Science > Medical Physics and Bioengineering
URI: http://discovery.ucl.ac.uk/id/eprint/70778
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