Using Frankenstein's Creature Paradigm to Build a Patient Specific Atlas

Abstract : Conformalradiotherapyplanningneedsaccuratedelineations of the critical structures. Atlas-based segmentation has been shown to be very efficient to delineate brain structures. It would therefore be very interesting to develop an atlas for the head and neck region where 7 % of the cancers arise. However, the construction of an atlas in this region is very difficult due to the high variability of the anatomies. This can generate segmentation errors and over-segmented structures in the atlas. To overcome this drawback, we present an alternative method to build a template locally adapted to the patient's anatomy. This is done first by selecting in a database the images that are the most similar to the patient on predefined regions of interest, using on a distance between transfor- mations. The first major contribution is that we do not compute every patient-to-image registration to find the most similar image, but only the registration of the patient towards an average image. This method is therefore computationally very efficient. The second major contribution is a novel method to use the selected images and the predefined regions to build a "Frankenstein's creature" for segmentation. We present a qual- itative and quantitative comparison between the proposed method and a classical atlas-based segmentation method. This evaluation is performed on a subset of 58 patients among a database of 105 head and neck CT images and shows a great improvement of the specificity of the results.
Type de document :
Communication dans un congrès
Yang, Guang-Zhong and Hawkes, David and Rueckert, Daniel and Noble, Alison and Taylor, Chris. Medical Image Computing and Computer-Assisted Intervention (MICCAI'09), Part II, 2009, London, UK, United States. Springer, 5762, pp.993--1000, 2009, Lecture Notes in Computer Science - LNCS. 〈10.1007/978-3-642-04271-3_120〉
Liste complète des métadonnées

Littérature citée [13 références]  Voir  Masquer  Télécharger

https://hal.inria.fr/inria-00616133
Contributeur : Project-Team Asclepios <>
Soumis le : mardi 16 juillet 2013 - 13:58:18
Dernière modification le : samedi 2 décembre 2017 - 09:36:53
Document(s) archivé(s) le : jeudi 17 octobre 2013 - 02:30:09

Fichier

CommowickMiccai2009.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Collections

Citation

Olivier Commowick, Simon K. Warfield, Grégoire Malandain. Using Frankenstein's Creature Paradigm to Build a Patient Specific Atlas. Yang, Guang-Zhong and Hawkes, David and Rueckert, Daniel and Noble, Alison and Taylor, Chris. Medical Image Computing and Computer-Assisted Intervention (MICCAI'09), Part II, 2009, London, UK, United States. Springer, 5762, pp.993--1000, 2009, Lecture Notes in Computer Science - LNCS. 〈10.1007/978-3-642-04271-3_120〉. 〈inria-00616133〉

Partager

Métriques

Consultations de la notice

215

Téléchargements de fichiers

107