Semi-automated measurement of anatomical structures using...

Details Semi-automated measurement of anatomical structures using... Semi-automated measurement of anatomical structures using...

G - Physics

06

T

G06T 7/00 (2006.01) A61B 5/055 (2006.01)

Patent

CA 2540332

Structures are delineated in medical or other images. First, various tissue types present in the image are statistically described using a maximum likelihood classifier. Second, the tissue of interest is described using an exemplar, which is derived either from an anatomical atlas or from user input. Third, the structure of interest is morphologically described. The process can be iterated until a desired level of accuracy is achieved.

Conformément au procédé selon l'invention, l'on délimite des structures dans des images médicales ou autres. Tout d'abord, divers types de tissu présents dans l'image sont décrits statistiquement à l'aide d'un classificateur de vraisemblance maximale. Ensuite, le tissu d'intérêt est décrit à l'aide d'un exemplaire de référence, qui est dérivé soit d'un atlas anatomique soit d'une entrée d'utilisateur. Dans un troisième temps, la structure d'intérêt est décrite morphologiquement. Le processus peut être répété jusqu'à ce qu'un niveau de précision désirée soit atteint.

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