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Conference papers

A comparison of rigid registration methods for prostate localization on CBCT and the dependence on rectum distension

Abstract : We evaluated automatic three-dimensional intensity-based rigid registration (RR) methods for prostate localization on CBCT scans and studied the impact of rectum distension on registration quality. 106 CBCT scans of 9 prostate patients were used. Each one was registered to the planning computed tomography (CT) scan using different methods: (a) global registration, (b) pelvis bony structure registration, (c) bony registration refined by a local prostate registration using the CT clinical target volume (CTV) expanded with 1, 3, 5, 8, 10, 12, 15 or 20-mm margin. Automatic CBCT contours were generated after propagation of the manual CT contours. To evaluate results, a radiation oncologist was asked to manually delineate the CTV on the CBCT scans (gold standard). The Dice similarity coefficients between propagated and manual CBCT contours were calculated
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https://hal-uphf.archives-ouvertes.fr/hal-03660937
Contributor : Mylène Delrue Connect in order to contact the contributor
Submitted on : Friday, May 6, 2022 - 1:56:00 PM
Last modification on : Wednesday, May 11, 2022 - 3:47:57 AM

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Christine Boydev, David Pasquier, Foued Derraz, Laurent Peyrodie, Abdelmalik Taleb-Ahmed, et al.. A comparison of rigid registration methods for prostate localization on CBCT and the dependence on rectum distension. 17th International Conference on the Use of Computers in Radiation Therapy, ICCR 2013, May 2013, Melbourne, Australia. pp.012025, ⟨10.1088/1742-6596/489/1/012025⟩. ⟨hal-03660937⟩

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