Spatially varying Riemannian elasticity regularization : Application to thoracic CT registration in image-guided radiotherapy
(2012) 2012 9th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2012 In Proceedings - International Symposium on Biomedical Imaging p.1224-1227- Abstract
For deformable registration of computed tomography (CT) scans in image guided radiation therapy (IGRT) we apply Riemannian elasticity regularization. We explore the use of spatially varying elasticity parameters to encourage bone rigidity and local tissue volume change only in the gross tumor volume (GTV) and the lungs. We evaluate the method on the point-validated 4DCT breathing thorax POPI-model and demonstrate its use and properties in registration of pre- and post-chemo CT scans for contour propagation in a Hodgkin lymphoma (HL) case showing significant tumor shrinkage. For the POPI-model we achieved a total mean target registration error (TRE) of 0.92 ± 0.49 mm. Using spatially varying regularization for the HL case, deformation... (More)
For deformable registration of computed tomography (CT) scans in image guided radiation therapy (IGRT) we apply Riemannian elasticity regularization. We explore the use of spatially varying elasticity parameters to encourage bone rigidity and local tissue volume change only in the gross tumor volume (GTV) and the lungs. We evaluate the method on the point-validated 4DCT breathing thorax POPI-model and demonstrate its use and properties in registration of pre- and post-chemo CT scans for contour propagation in a Hodgkin lymphoma (HL) case showing significant tumor shrinkage. For the POPI-model we achieved a total mean target registration error (TRE) of 0.92 ± 0.49 mm. Using spatially varying regularization for the HL case, deformation was limited to the GTV and lungs.
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- author
- Bjerre, T. ; Fogtmann, M. O. ; Aznar, M. ; Af Rosenschöld, P. Munck LU ; Specht, L. and Larsen, R. LU
- publishing date
- 2012
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- 2012 9th IEEE International Symposium on Biomedical Imaging : From Nano to Macro, ISBI 2012 - Proceedings - From Nano to Macro, ISBI 2012 - Proceedings
- series title
- Proceedings - International Symposium on Biomedical Imaging
- article number
- 6235782
- pages
- 1224 - 1227
- conference name
- 2012 9th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2012
- conference location
- Barcelona, Spain
- conference dates
- 2012-05-02 - 2012-05-05
- external identifiers
-
- scopus:84864858335
- ISSN
- 1945-8452
- 1945-7928
- ISBN
- 9781457718588
- DOI
- 10.1109/ISBI.2012.6235782
- language
- English
- LU publication?
- no
- id
- c8d2e2c5-0f71-49f4-9fe7-fef82762cd66
- date added to LUP
- 2023-07-19 17:05:52
- date last changed
- 2024-01-05 03:32:50
@inproceedings{c8d2e2c5-0f71-49f4-9fe7-fef82762cd66, abstract = {{<p>For deformable registration of computed tomography (CT) scans in image guided radiation therapy (IGRT) we apply Riemannian elasticity regularization. We explore the use of spatially varying elasticity parameters to encourage bone rigidity and local tissue volume change only in the gross tumor volume (GTV) and the lungs. We evaluate the method on the point-validated 4DCT breathing thorax POPI-model and demonstrate its use and properties in registration of pre- and post-chemo CT scans for contour propagation in a Hodgkin lymphoma (HL) case showing significant tumor shrinkage. For the POPI-model we achieved a total mean target registration error (TRE) of 0.92 ± 0.49 mm. Using spatially varying regularization for the HL case, deformation was limited to the GTV and lungs.</p>}}, author = {{Bjerre, T. and Fogtmann, M. O. and Aznar, M. and Af Rosenschöld, P. Munck and Specht, L. and Larsen, R.}}, booktitle = {{2012 9th IEEE International Symposium on Biomedical Imaging : From Nano to Macro, ISBI 2012 - Proceedings}}, isbn = {{9781457718588}}, issn = {{1945-8452}}, language = {{eng}}, pages = {{1224--1227}}, series = {{Proceedings - International Symposium on Biomedical Imaging}}, title = {{Spatially varying Riemannian elasticity regularization : Application to thoracic CT registration in image-guided radiotherapy}}, url = {{http://dx.doi.org/10.1109/ISBI.2012.6235782}}, doi = {{10.1109/ISBI.2012.6235782}}, year = {{2012}}, }