NDLI: Automatic prostate segmentation in cone-beam computed tomography images using rigid registration

Content Provider	IEEE Xplore Digital Library
Author	Boydev, C. Pasquier, D. Derraz, F. Peyrodie, L. Taleb-Ahmed, A. Thiran, J.-P.
Copyright Year	2013
Description	Author affiliation: Signal Process. Lab. (LTS5), Ecole Polytech. Fed. de Lausanne, Lausanne, Switzerland (Thiran, J.-P.) \|\| Centre de Radiotherapie et d'Oncologie Galilee de Lille, Lille, France (Pasquier, D.) \|\| Lab. d'Autom., de Mec. et d'Inf. Industrielles et Humaines (LAMIH), Univ. de Valenciennes et du Hainaut-Cambresis, Valenciennes, France (Boydev, C.; Derraz, F.) \|\| Hautes Etudes d'Ing., Unite de Traitements de Signaux Biomedicaux (UTSB), Lille, France (Peyrodie, L.) \|\| Fac. Libre de Med., Unite de Traitements de Signaux Biomedicaux (UTSB), Lille, France (Taleb-Ahmed, A.)
Abstract	We propose to evaluate automatic three-dimensional gray-value rigid registration (RR) methods for prostate localization on cone-beam computed tomography (CBCT) scans. In total, 103 CBCT scans of 9 prostate patients have been analyzed. Each one was registered to the planning CT scan using different methods: (a) global RR, (b) pelvis bone structure RR, (c) bone RR refined by local soft-tissue RR using the CT clinical target volume (CTV) expanded with a 1, 3, 5, 8, 10, 12, 15 or 20-mm margin. To evaluate results, a radiation oncologist was asked to manually delineate the CTV on the CBCT scans. The Dice coefficients between each automatic CBCT segmentation - derived from the transformation of the manual CT segmentation - and the manual CBCT segmentation were calculated. Global or bone CT/CBCT RR has been shown to yield insufficient results in average. Local RR with an 8-mm margin around the CTV after bone RR was found to be the best candidate for systematically significantly improving prostate localization.
Starting Page	3993
Ending Page	3997
File Size	470385
Page Count	5
File Format	PDF
ISBN	9781457702167
ISSN	1557170X
DOI	10.1109/EMBC.2013.6610420
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-03
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computed tomography Bones Planning Image segmentation Manuals X-ray imaging Pelvis prostate cancer Rigid registration segmentation cone-beam computed tomography image-guided radiotherapy
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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