Matches in SemOpenAlex for { <https://semopenalex.org/work/W2085394562> ?p ?o ?g. }
Showing items 1 to 72 of
72
with 100 items per page.
- W2085394562 endingPage "3790" @default.
- W2085394562 startingPage "3790" @default.
- W2085394562 abstract "Purpose : Intensity modulated radiotherapy (IMRT) requires the determination of the appropriate multileaf collimator (MLC) settings to deliver segmental fluence maps. In this study, we purposed a leaf sequencing algorithm to regulate the MLC aperture between adjacent apertures in the delivery.Method and Materials: Based on the algorithm of Xia and Verhey, our proposed algorithm improved the shape of each MLC segment so that the basic frame can be preserved. The MLC aperture can be subjected to the distances of adjacent leaf rows based on the segmentation Result of the algorithm of Xia and Verhey. As the row distances decreased, the distance value became smaller. The distance value between adjacent rows can be controlled by user to omit the low‐weight monitor unit segments and tiny MLC segments. Conjugate Gradient algorithm was used to optimize segmental weight, and readjust segment and shape which can minimize the error in the anterior‐posterior leaf sequencing. Results : By comparisons and analyses of the total number of monitor unit and number of segment with benchmark results, our proposed algorithm performed well. The segmental aperture constraint produces segments with more compact shapes when delivering the planned fluence maps, which may help to reduce the MLC specific effects. As an improved leaf sequencing algorithm, Shape regulation was validated with a series of fluence maps using treatment planning system performed previously by the benchmark algorithm of Xia and Verhey. Conclusions : Our improved algorithm performed a good agreement among the NS and TNMU value of the benchmark results and finished this segmentation in fraction of a second, faster than the DAO method. Moreover, it can keep the MLC aperture compact shapes. We concluded that our algorithm is acceptable as a module in IMRT treatment planning. The work is supported by the National Natural Science Foundation of China (60872112 and 10805012), the Natural Science Foundation of Anhui Province (11040606M132) and the Fundamental Research Funds for the Central Universities and the Science Research and Development Fund of Hefei University of Technology (2012HGXJ0062)." @default.
- W2085394562 created "2016-06-24" @default.
- W2085394562 creator A5036452334 @default.
- W2085394562 creator A5065817301 @default.
- W2085394562 creator A5074416818 @default.
- W2085394562 creator A5089404504 @default.
- W2085394562 date "2012-06-01" @default.
- W2085394562 modified "2023-10-05" @default.
- W2085394562 title "SU-E-T-374: An Improved Leaf Sequencing Algorithm Based on MLC Shape Regulation" @default.
- W2085394562 doi "https://doi.org/10.1118/1.4735461" @default.
- W2085394562 hasPublicationYear "2012" @default.
- W2085394562 type Work @default.
- W2085394562 sameAs 2085394562 @default.
- W2085394562 citedByCount "0" @default.
- W2085394562 crossrefType "journal-article" @default.
- W2085394562 hasAuthorship W2085394562A5036452334 @default.
- W2085394562 hasAuthorship W2085394562A5065817301 @default.
- W2085394562 hasAuthorship W2085394562A5074416818 @default.
- W2085394562 hasAuthorship W2085394562A5089404504 @default.
- W2085394562 hasConcept C11413529 @default.
- W2085394562 hasConcept C120665830 @default.
- W2085394562 hasConcept C121332964 @default.
- W2085394562 hasConcept C13280743 @default.
- W2085394562 hasConcept C154945302 @default.
- W2085394562 hasConcept C161471255 @default.
- W2085394562 hasConcept C168834538 @default.
- W2085394562 hasConcept C180048950 @default.
- W2085394562 hasConcept C185798385 @default.
- W2085394562 hasConcept C205649164 @default.
- W2085394562 hasConcept C24890656 @default.
- W2085394562 hasConcept C29081049 @default.
- W2085394562 hasConcept C33923547 @default.
- W2085394562 hasConcept C41008148 @default.
- W2085394562 hasConcept C78336883 @default.
- W2085394562 hasConcept C89600930 @default.
- W2085394562 hasConceptScore W2085394562C11413529 @default.
- W2085394562 hasConceptScore W2085394562C120665830 @default.
- W2085394562 hasConceptScore W2085394562C121332964 @default.
- W2085394562 hasConceptScore W2085394562C13280743 @default.
- W2085394562 hasConceptScore W2085394562C154945302 @default.
- W2085394562 hasConceptScore W2085394562C161471255 @default.
- W2085394562 hasConceptScore W2085394562C168834538 @default.
- W2085394562 hasConceptScore W2085394562C180048950 @default.
- W2085394562 hasConceptScore W2085394562C185798385 @default.
- W2085394562 hasConceptScore W2085394562C205649164 @default.
- W2085394562 hasConceptScore W2085394562C24890656 @default.
- W2085394562 hasConceptScore W2085394562C29081049 @default.
- W2085394562 hasConceptScore W2085394562C33923547 @default.
- W2085394562 hasConceptScore W2085394562C41008148 @default.
- W2085394562 hasConceptScore W2085394562C78336883 @default.
- W2085394562 hasConceptScore W2085394562C89600930 @default.
- W2085394562 hasIssue "6Part15" @default.
- W2085394562 hasLocation W20853945621 @default.
- W2085394562 hasOpenAccess W2085394562 @default.
- W2085394562 hasPrimaryLocation W20853945621 @default.
- W2085394562 hasRelatedWork W112744582 @default.
- W2085394562 hasRelatedWork W1485630101 @default.
- W2085394562 hasRelatedWork W2031044433 @default.
- W2085394562 hasRelatedWork W2085394562 @default.
- W2085394562 hasRelatedWork W2350614169 @default.
- W2085394562 hasRelatedWork W2383528233 @default.
- W2085394562 hasRelatedWork W2498017833 @default.
- W2085394562 hasRelatedWork W2767781638 @default.
- W2085394562 hasRelatedWork W3004796044 @default.
- W2085394562 hasRelatedWork W417086880 @default.
- W2085394562 hasVolume "39" @default.
- W2085394562 isParatext "false" @default.
- W2085394562 isRetracted "false" @default.
- W2085394562 magId "2085394562" @default.
- W2085394562 workType "article" @default.