Patient Specific Dosimetry Phantoms Using Multichannel LDDMM of the Whole Body
This paper describes an automated procedure for creating detailed patient-specific pediatric dosimetry phantoms from a small set of segmented organs in a child's CT scan. The algorithm involves full body mappings from adult template to pediatric images using multichannel large deformation diffe...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2011-01-01
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| Series: | International Journal of Biomedical Imaging |
| Online Access: | http://dx.doi.org/10.1155/2011/481064 |
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| author | Daniel J. Tward Can Ceritoglu Anthony Kolasny Gregory M. Sturgeon W. Paul Segars Michael I. Miller J. Tilak Ratnanather |
| author_facet | Daniel J. Tward Can Ceritoglu Anthony Kolasny Gregory M. Sturgeon W. Paul Segars Michael I. Miller J. Tilak Ratnanather |
| author_sort | Daniel J. Tward |
| collection | DOAJ |
| description | This paper describes an automated procedure for creating detailed patient-specific
pediatric dosimetry phantoms from a small set of segmented organs in a child's CT
scan. The algorithm involves full body mappings from adult template to pediatric
images using multichannel large deformation diffeomorphic metric mapping (MC-LDDMM). The parallel implementation and performance of MC-LDDMM for this application is studied here for a sample of 4 pediatric patients, and from 1 to 24
processors. 93.84% of computation time is parallelized, and the efficiency of parallelization remains high until more than 8 processors are used. The performance of the algorithm was validated on a set of 24 male and 18 female pediatric patients. It
was found to be accurate typically to within 1-2 voxels (2–4 mm) and robust across
this large and variable data set. |
| format | Article |
| id | doaj-art-cfa0dcbfc1514399b83e5ed32ceadbaf |
| institution | OA Journals |
| issn | 1687-4188 1687-4196 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Biomedical Imaging |
| spelling | doaj-art-cfa0dcbfc1514399b83e5ed32ceadbaf2025-08-20T02:20:07ZengWileyInternational Journal of Biomedical Imaging1687-41881687-41962011-01-01201110.1155/2011/481064481064Patient Specific Dosimetry Phantoms Using Multichannel LDDMM of the Whole BodyDaniel J. Tward0Can Ceritoglu1Anthony Kolasny2Gregory M. Sturgeon3W. Paul Segars4Michael I. Miller5J. Tilak Ratnanather6The Center for Imaging Science, The Johns Hopkins University, Baltimore, MD 21218-2686, USAThe Center for Imaging Science, The Johns Hopkins University, Baltimore, MD 21218-2686, USAThe Center for Imaging Science, The Johns Hopkins University, Baltimore, MD 21218-2686, USACarl E. Ravin Advanced Imaging Laboratories, Duke University, Durham, NC 27705, USACarl E. Ravin Advanced Imaging Laboratories, Duke University, Durham, NC 27705, USAThe Center for Imaging Science, The Johns Hopkins University, Baltimore, MD 21218-2686, USAThe Center for Imaging Science, The Johns Hopkins University, Baltimore, MD 21218-2686, USAThis paper describes an automated procedure for creating detailed patient-specific pediatric dosimetry phantoms from a small set of segmented organs in a child's CT scan. The algorithm involves full body mappings from adult template to pediatric images using multichannel large deformation diffeomorphic metric mapping (MC-LDDMM). The parallel implementation and performance of MC-LDDMM for this application is studied here for a sample of 4 pediatric patients, and from 1 to 24 processors. 93.84% of computation time is parallelized, and the efficiency of parallelization remains high until more than 8 processors are used. The performance of the algorithm was validated on a set of 24 male and 18 female pediatric patients. It was found to be accurate typically to within 1-2 voxels (2–4 mm) and robust across this large and variable data set.http://dx.doi.org/10.1155/2011/481064 |
| spellingShingle | Daniel J. Tward Can Ceritoglu Anthony Kolasny Gregory M. Sturgeon W. Paul Segars Michael I. Miller J. Tilak Ratnanather Patient Specific Dosimetry Phantoms Using Multichannel LDDMM of the Whole Body International Journal of Biomedical Imaging |
| title | Patient Specific Dosimetry Phantoms Using Multichannel LDDMM of the Whole Body |
| title_full | Patient Specific Dosimetry Phantoms Using Multichannel LDDMM of the Whole Body |
| title_fullStr | Patient Specific Dosimetry Phantoms Using Multichannel LDDMM of the Whole Body |
| title_full_unstemmed | Patient Specific Dosimetry Phantoms Using Multichannel LDDMM of the Whole Body |
| title_short | Patient Specific Dosimetry Phantoms Using Multichannel LDDMM of the Whole Body |
| title_sort | patient specific dosimetry phantoms using multichannel lddmm of the whole body |
| url | http://dx.doi.org/10.1155/2011/481064 |
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