María Jimena Costa
Ph.D. in Computer Science - Medical Image Processing
Towards an automatic delineation of lower abdomen structures for conformational radiotherapy based on CT images.
Costa J., Delingette H., Diaz J.C., Wibault W. and Egelmeers A.
SFPM 2005
The delineation of anatomical structures based on images of the lower abdomen in the frame of dose calculation for conformational radiotherapy is very complex to automatize. We present here the first results of a semi-automatic delineation of the bladder in tomodensitometric (CT) images. The method we have used is based on deformable templates whose deformation is guided by the image and by the user as well, in case the latter desires to correct the automatic delineation. In order to validate our approach, we use a set of CT images that have been segmented by medical experts. These hand-made contours act in fact as "ground truth", allowing for an objective evaluation of the performance of our algorithm.
Publications
Segmentation of Anatomical Structures of the Lower Abdomen using 3D Deformable Surfaces.
Costa, J.Ph.D. Thesis, March 2008
An Efficient Locally Affine Framework for the Smooth Registration of Anatomical Structures.
Commowick O., Arsigny V., Isambert A., Costa J., et al.Medical Image Analysis 2008
Automatic Segmentation of Bladder and Prostate Using Coupled 3D Deformable Models.
Costa J., et al.MICCAI 2007
Automatic Segmentation of the Bladder Using Deformable Models.
Costa, J., et al.ISBI 2007
An Efficient Locally Affine Framework for the Registration of Anatomical Structures.
Commowick O., Arsigny V., Costa J., Ayache N. and Malandain G.ISBI 2006
Towards an automatic delineation of lower abdomen structures for conformational radiotherapy based on CT images.
Costa J., et al.SFPM 2005.
Distributed Ontological Encoding Through Symbol Recirculation.
Costa J., Duboue P.ASAI 2004.
