| DOI | Trouver le DOI : https://doi.org/10.1088/1742-6596/102/1/012017 |
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| Auteur | Rechercher : Mainegra-Hing, E.1; Rechercher : Kawrakow, I.1 |
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| Affiliation | - Conseil national de recherches du Canada. Institut des étalons nationaux de mesure du CNRC
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| Format | Texte, Article |
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| Conférence | Monte Carlo Techniques in Radiotherapy Delivery and Verification, Third McGill International Workshop, May 29-June 1, 2007, Montreal, Quebec, Canada |
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| Résumé | A very fast Monte Carlo algorithm for the calculation of the scatter contribution in cone beam computed tomography, implemented within the EGSnrc framework, is presented. Based on the combination of several variance reduction techniques, an efficiency improvement of three orders of magnitude over an analog simulation is obtained. A denoising algorithm applied to the computed scatter distribution is shown to further increase the efficiency of the calculation by about a factor of 10. An iterative scatter correction algorithm is proposed and its feasibility is demonstrated on three different phantoms. |
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| Date de publication | 2008 |
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| Dans | |
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| Langue | anglais |
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| Numéro du CNRC | NRC-INMS-4524 |
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| Numéro NPARC | 8900000 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 5ff134af-e317-446f-b1f4-0f8c4b4ea8e3 |
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| Enregistrement créé | 2009-04-22 |
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| Enregistrement modifié | 2024-03-06 |
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