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Med Image Anal. 1999 Jun;3(2):119-28.

Bone labelling on micro-magnetic resonance images.

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Unité de Recherche en Résonance Magnétique Médicale, U2R2M, CNRS URA 2212, Université Paris-Sud, Orsay, France.


The study of trabecular bone is receiving increasing interest within the medical community working in the field of skeletal diseases, such as osteoporosis. Quantification of trabecular bone structure usually requires as a starting point a correct segmentation of the trabecular network. We have developed a probabilistic relaxation labelling technique, which uses local features of the trabecular bone images to improve segmentation. Tests on synthetic images show that bone labelling performs a more accurate segmentation than conventional techniques such as thresholding, especially by preserving the connectivity of the trabecular network. Tests on acquired data show that porosity values obtained after segmentation are in good agreement with experimental values obtained by weighing the bone samples.

[Indexed for MEDLINE]

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