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

Details

Serval ID
serval:BIB_C3DB1F3CCFAF
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Segmentation of Head and Neck Lymph Node Regions for Radiotherapy Planning Using Active Contour-Based Atlas Registration
Journal
IEEE Journal of Selected Topics in Signal Processing
Author(s)
Gorthi S., Duay V., Houhou N., Cuadra M.B., Schick U., Becker M., Allal A.S., Thiran J.P.
ISSN
1932-4553
Publication state
Published
Issued date
2009
Peer-reviewed
Oui
Volume
3
Number
1
Pages
135-147
Language
english
Notes
Publication type : Article
Abstract
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.
Keywords
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
Create date
02/09/2010 14:19
Last modification date
20/08/2019 15:39
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