Segmentation of Head and Neck Lymph Node Regions for Radiotherapy Planning Using Active Contour-Based Atlas Registration

Détails

ID Serval
serval:BIB_C3DB1F3CCFAF
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Segmentation of Head and Neck Lymph Node Regions for Radiotherapy Planning Using Active Contour-Based Atlas Registration
Périodique
IEEE Journal of Selected Topics in Signal Processing
Auteur(s)
Gorthi S., Duay V., Houhou N., Cuadra M.B., Schick U., Becker M., Allal A.S., Thiran J.P.
ISSN
1932-4553
Statut éditorial
Publié
Date de publication
2009
Peer-reviewed
Oui
Volume
3
Numéro
1
Pages
135-147
Langue
anglais
Notes
Publication type : Article
Résumé
In this paper, we present the segmentation of the headand neck lymph node regions using a new active contourbased atlas registration model. We propose to segment thelymph node regions without directly including them in theatlas registration process; instead, they are segmentedusing the dense deformation field computed from theregistration of the atlas structures with distinctboundaries. This approach results in robust and accuratesegmentation of the lymph node regions even in thepresence of significant anatomical variations between theatlas-image and the patient's image to be segmented. Wealso present a quantitative evaluation of lymph noderegions segmentation using various statistical as well asgeometrical metrics: sensitivity, specificity, dicesimilarity coefficient and Hausdorff distance. Acomparison of the proposed method with two other state ofthe art methods is presented. The robustness of theproposed method to the atlas selection, in segmenting thelymph node regions, is also evaluated.
Mots-clé
Atlas-based segmentation, head and neck, IMRT, lymph node regions, non-rigid registration, radiotherapy, IMAGE REGISTRATION, NEGATIVE NECK, CT IMAGES, PERFORMANCE, DELINEATION, VALIDATION, ALGORITHM
Web of science
Création de la notice
02/09/2010 15:19
Dernière modification de la notice
20/08/2019 16:39
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