% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Walter:298917, author = {A. Walter$^*$ and C. Bauer$^*$ and A. K. Yawson$^*$ and P. Hoegen-Saßmannshausen$^*$ and S. Adeberg and J. Debus$^*$ and O. Jäkel$^*$ and M. Frank and K. Giske$^*$}, title = {{A}ccuracy of an articulated head-and-neck motion model using deep learning-based instance segmentation of skeletal bones in {CT} scans for image registration in radiotherapy}, journal = {Computer methods in biomechanics and biomedical engineering}, volume = {13}, number = {1}, issn = {2168-1163}, address = {Abingdon}, publisher = {Taylor $\&$ Francis}, reportid = {DKFZ-2025-00353}, pages = {2455752}, year = {2025}, note = {#EA:E040#LA:E040#}, abstract = {Knowing about anatomical deformations in patient images is crucial for adaptive image-guided radiation therapy. Biomechanical models ensure biofidelity in deformable image registration, but manual contouring limits their clinical use. We investigate the application of automatically generated contours for a biomechanical registration model in head and neck cancer treatment. For that, we automatically generate individual bone segmentations on planning CT scans examining a custom-trained nnU-Net model and the ready-trained TotalSegmentator model. Both sets of segmentations are evaluated using DICE, Hausdorff Distance and surface DICE. We investigate their impact on the build-up of the biomechanical articulated skeleton model by deviations in joint positioning and CT-CT registration accuracy using target registration error (TRE). The custom-trained model achieves 1.51 ± 0.26 mm TRE, with no significant difference in registration accuracy. While the TotalSegmentator does not provide all structures needed for the complete biomechanical model build-up. Overall, deep learning–based automatic bone segmentation can replace manual contouring in this model, matching its performance.}, cin = {E040 / E050}, ddc = {570}, cid = {I:(DE-He78)E040-20160331 / I:(DE-He78)E050-20160331}, pnm = {315 - Bildgebung und Radioonkologie (POF4-315)}, pid = {G:(DE-HGF)POF4-315}, typ = {PUB:(DE-HGF)16}, doi = {10.1080/21681163.2025.2455752}, url = {https://inrepo02.dkfz.de/record/298917}, }