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[3D reconstruction of microcalcification clusters]
1Centre de Recherche en Automatique de Nancy, CRAN - CNRS UPRES-A 7039, 2 av de la Forêt de Haye, 54516 Vandoeuvre-lès-Nancy.
Purpose:
A characterization of the geometrical or morphological aspect of microcalcifications is not sufficient to confirm a diagnosis of cancer. On the other hand, it seems that the shape of the cluster is a pertinent and helpful criterion for diagnosis. The aim of our study is to work out a method for 3D reconstructions of clusters of microcalcifications.
Materials And Methods:
After having tested different algorithms for extracting microcalcifications, we have developed a method of 3D reconstructions of the shape of the cluster from three radiographs. The technique, available using a standard mammography unit, consists of three principal steps
Results:
The technique has been tested with two simple tridimensional phantoms and has given results with sufficient precision for possible clinical use.
Conclusion:
We plan now to apply the method in vivo with adaptation on a dedicated mammographic stereotactic unit with digital acquisition.