Matches in SemOpenAlex for { <https://semopenalex.org/work/W2011053964> ?p ?o ?g. }
Showing items 1 to 94 of
94
with 100 items per page.
- W2011053964 abstract "Purpose: To compare a fast GPU‐based dose calculation algorithm to Monte Carlo(MC) simulations and TG‐43 results in low dose rate brachytherapy, in terms of accuracy and relative execution speed. Methods: Dose calculations were performed in a voxelized numerical phantom comprising bone, air and gold inserts. The source consisted in a single seed of 125I (SelectSeed, Nucletron, The Netherlands). Dose distributions were obtained from calculations based on the TG‐43 formalism, from MC simulations (GEANT4 v.9.3) and from a GPU‐based version of the TG‐43 formalism capable of handling heterogeneities. This feature was implemented in the GPU algorithm by computing the equivalent water length travelled through each voxel between the emission site and the dose calculation point. Results: Dose profiles were plotted along heterogeneities to visualize the behavior of each method, with MC simulation as the gold standard. Unsurprisingly, the TG‐43 method overestimated the dose behind high‐density/high‐Z regions with errors in excess of 100% in some cases. The modified TG‐43 algorithm implemented on the GPU algorithm was able to better reproduce MC results, with errors in the range −9.3% to 10.5% behind the same regions. Larger differences occurred for backscattering effects, which are only modeled in the MC method, but only on a limited region (1–2 mm). The TG‐43 formalism provides dose distributions almost instantaneously while MC simulations typically required up to four hours for statistically significant results. The modified TG‐43 GPU algorithm was able to reproduce MC results in approximately four seconds. Conclusions: For complex geometries, the GPU‐based TG‐43 algorithm was shown to provide dose distributions that are closer to those obtained with MC simulations while being significantly faster. This improvement can potentially improve the planning in LDR brachytherapy, where inter‐source attenuation and tissue heterogeneities were shown to influence dosimetric parameters." @default.
- W2011053964 created "2016-06-24" @default.
- W2011053964 creator A5020472212 @default.
- W2011053964 creator A5025035225 @default.
- W2011053964 creator A5034926107 @default.
- W2011053964 creator A5049072127 @default.
- W2011053964 creator A5062790621 @default.
- W2011053964 creator A5063476064 @default.
- W2011053964 date "2011-06-01" @default.
- W2011053964 modified "2023-09-26" @default.
- W2011053964 title "SU-E-T-683: Improvement of LDR Brachytherapy TG-43 Dose Calculations with a GPU-Accelerated Raytracing Algorithm" @default.
- W2011053964 doi "https://doi.org/10.1118/1.3612645" @default.
- W2011053964 hasPublicationYear "2011" @default.
- W2011053964 type Work @default.
- W2011053964 sameAs 2011053964 @default.
- W2011053964 citedByCount "0" @default.
- W2011053964 crossrefType "journal-article" @default.
- W2011053964 hasAuthorship W2011053964A5020472212 @default.
- W2011053964 hasAuthorship W2011053964A5025035225 @default.
- W2011053964 hasAuthorship W2011053964A5034926107 @default.
- W2011053964 hasAuthorship W2011053964A5049072127 @default.
- W2011053964 hasAuthorship W2011053964A5062790621 @default.
- W2011053964 hasAuthorship W2011053964A5063476064 @default.
- W2011053964 hasConcept C104293457 @default.
- W2011053964 hasConcept C105795698 @default.
- W2011053964 hasConcept C11413529 @default.
- W2011053964 hasConcept C120665830 @default.
- W2011053964 hasConcept C121332964 @default.
- W2011053964 hasConcept C126322002 @default.
- W2011053964 hasConcept C142362112 @default.
- W2011053964 hasConcept C153349607 @default.
- W2011053964 hasConcept C154945302 @default.
- W2011053964 hasConcept C192562407 @default.
- W2011053964 hasConcept C19499675 @default.
- W2011053964 hasConcept C2777416452 @default.
- W2011053964 hasConcept C2989005 @default.
- W2011053964 hasConcept C30475298 @default.
- W2011053964 hasConcept C33923547 @default.
- W2011053964 hasConcept C41008148 @default.
- W2011053964 hasConcept C509974204 @default.
- W2011053964 hasConcept C54170458 @default.
- W2011053964 hasConcept C558565934 @default.
- W2011053964 hasConcept C71924100 @default.
- W2011053964 hasConcept C73301696 @default.
- W2011053964 hasConcept C75088862 @default.
- W2011053964 hasConceptScore W2011053964C104293457 @default.
- W2011053964 hasConceptScore W2011053964C105795698 @default.
- W2011053964 hasConceptScore W2011053964C11413529 @default.
- W2011053964 hasConceptScore W2011053964C120665830 @default.
- W2011053964 hasConceptScore W2011053964C121332964 @default.
- W2011053964 hasConceptScore W2011053964C126322002 @default.
- W2011053964 hasConceptScore W2011053964C142362112 @default.
- W2011053964 hasConceptScore W2011053964C153349607 @default.
- W2011053964 hasConceptScore W2011053964C154945302 @default.
- W2011053964 hasConceptScore W2011053964C192562407 @default.
- W2011053964 hasConceptScore W2011053964C19499675 @default.
- W2011053964 hasConceptScore W2011053964C2777416452 @default.
- W2011053964 hasConceptScore W2011053964C2989005 @default.
- W2011053964 hasConceptScore W2011053964C30475298 @default.
- W2011053964 hasConceptScore W2011053964C33923547 @default.
- W2011053964 hasConceptScore W2011053964C41008148 @default.
- W2011053964 hasConceptScore W2011053964C509974204 @default.
- W2011053964 hasConceptScore W2011053964C54170458 @default.
- W2011053964 hasConceptScore W2011053964C558565934 @default.
- W2011053964 hasConceptScore W2011053964C71924100 @default.
- W2011053964 hasConceptScore W2011053964C73301696 @default.
- W2011053964 hasConceptScore W2011053964C75088862 @default.
- W2011053964 hasLocation W20110539641 @default.
- W2011053964 hasOpenAccess W2011053964 @default.
- W2011053964 hasPrimaryLocation W20110539641 @default.
- W2011053964 hasRelatedWork W1911133895 @default.
- W2011053964 hasRelatedWork W1975815447 @default.
- W2011053964 hasRelatedWork W2005869484 @default.
- W2011053964 hasRelatedWork W2033534035 @default.
- W2011053964 hasRelatedWork W2039412106 @default.
- W2011053964 hasRelatedWork W2048662455 @default.
- W2011053964 hasRelatedWork W2054825803 @default.
- W2011053964 hasRelatedWork W2085295656 @default.
- W2011053964 hasRelatedWork W2094956369 @default.
- W2011053964 hasRelatedWork W2145029504 @default.
- W2011053964 hasRelatedWork W2310055292 @default.
- W2011053964 hasRelatedWork W2407299052 @default.
- W2011053964 hasRelatedWork W2465089780 @default.
- W2011053964 hasRelatedWork W2761194617 @default.
- W2011053964 hasRelatedWork W2793644615 @default.
- W2011053964 hasRelatedWork W2897812300 @default.
- W2011053964 hasRelatedWork W2970115228 @default.
- W2011053964 hasRelatedWork W3187047158 @default.
- W2011053964 hasRelatedWork W3206330276 @default.
- W2011053964 hasRelatedWork W3214323801 @default.
- W2011053964 isParatext "false" @default.
- W2011053964 isRetracted "false" @default.
- W2011053964 magId "2011053964" @default.
- W2011053964 workType "article" @default.