Matches in SemOpenAlex for { <https://semopenalex.org/work/W2021200351> ?p ?o ?g. }
Showing items 1 to 90 of
90
with 100 items per page.
- W2021200351 abstract "Purpose: As specified in TG142, MLC position accuracy needs to be tested on weekly/monthly basis, with 1mm tolerance. This study focuses on developing techniques, hardware and software tools for implementation of MLC QA tests for Elekta Linacs.Material and Methods: This process was tested with an Elekta Synergy S, Beam Modulator™, which has 40 leaf pairs of 4mm width (maximum 16cm×21cm field size). Based on the machine characteristics, two picket‐fence IMRT plans were designed: one has 5 2cm×16cm strips separated by 2cm gap; the other has the same setup with individual leafs intentionally displaced by ±1mm, ±1.2mm, etc. Both plans used 6MV x‐rays and 50MU on each strip. We overcame the limitation of Xio planning system in generating picket‐fence IMRT plan by modifying leaf positions from a DICOM RT plan file. In‐house software was executed to validate the files before imported into Record and Verify system (Mosaiq) for delivery. Radiographic images were acquired using Kodak XV films. The borders of a 16cm×21cm light field were first traced on the film. These reference lines helped reduce the orientation errors during image registration. Two sets of films were exposed with full buildup. After development, each film was digitized with 0.06mm resolution using a high‐resolution scanner. The images were then imported into Matlab. In‐house code was used to detect leafs exceeding the 1mm threshold. Results: The plans were delivered smoothly. Leaf positions in the first image were used as baselines, instead of using reference leaf positions from the same exposure. This reduced systematic errors. After image registration, leafs displacing from the baseline by 16 pixels (1mm) or more were detected. Conclusion: This efficient procedure provides a sufficiently accurate test for MLC positioning reproducibility. It is a simple and straightforward procedure that can be used for routine MLC position checks." @default.
- W2021200351 created "2016-06-24" @default.
- W2021200351 creator A5010306053 @default.
- W2021200351 creator A5022884134 @default.
- W2021200351 creator A5023363947 @default.
- W2021200351 creator A5028289473 @default.
- W2021200351 creator A5050055693 @default.
- W2021200351 creator A5054470505 @default.
- W2021200351 creator A5056115268 @default.
- W2021200351 creator A5056733789 @default.
- W2021200351 creator A5057947122 @default.
- W2021200351 creator A5079985074 @default.
- W2021200351 date "2010-06-01" @default.
- W2021200351 modified "2023-09-26" @default.
- W2021200351 title "SU-GG-T-313: A Procedure for Standardizing MLC Quality Assurance for Elekta Linacs" @default.
- W2021200351 doi "https://doi.org/10.1118/1.3468709" @default.
- W2021200351 hasPublicationYear "2010" @default.
- W2021200351 type Work @default.
- W2021200351 sameAs 2021200351 @default.
- W2021200351 citedByCount "0" @default.
- W2021200351 crossrefType "journal-article" @default.
- W2021200351 hasAuthorship W2021200351A5010306053 @default.
- W2021200351 hasAuthorship W2021200351A5022884134 @default.
- W2021200351 hasAuthorship W2021200351A5023363947 @default.
- W2021200351 hasAuthorship W2021200351A5028289473 @default.
- W2021200351 hasAuthorship W2021200351A5050055693 @default.
- W2021200351 hasAuthorship W2021200351A5054470505 @default.
- W2021200351 hasAuthorship W2021200351A5056115268 @default.
- W2021200351 hasAuthorship W2021200351A5056733789 @default.
- W2021200351 hasAuthorship W2021200351A5057947122 @default.
- W2021200351 hasAuthorship W2021200351A5079985074 @default.
- W2021200351 hasConcept C106436119 @default.
- W2021200351 hasConcept C111919701 @default.
- W2021200351 hasConcept C120665830 @default.
- W2021200351 hasConcept C121332964 @default.
- W2021200351 hasConcept C127413603 @default.
- W2021200351 hasConcept C154945302 @default.
- W2021200351 hasConcept C168834538 @default.
- W2021200351 hasConcept C180048950 @default.
- W2021200351 hasConcept C19527891 @default.
- W2021200351 hasConcept C21547014 @default.
- W2021200351 hasConcept C2777904410 @default.
- W2021200351 hasConcept C2778618615 @default.
- W2021200351 hasConcept C2989005 @default.
- W2021200351 hasConcept C41008148 @default.
- W2021200351 hasConcept C71924100 @default.
- W2021200351 hasConcept C77331912 @default.
- W2021200351 hasConceptScore W2021200351C106436119 @default.
- W2021200351 hasConceptScore W2021200351C111919701 @default.
- W2021200351 hasConceptScore W2021200351C120665830 @default.
- W2021200351 hasConceptScore W2021200351C121332964 @default.
- W2021200351 hasConceptScore W2021200351C127413603 @default.
- W2021200351 hasConceptScore W2021200351C154945302 @default.
- W2021200351 hasConceptScore W2021200351C168834538 @default.
- W2021200351 hasConceptScore W2021200351C180048950 @default.
- W2021200351 hasConceptScore W2021200351C19527891 @default.
- W2021200351 hasConceptScore W2021200351C21547014 @default.
- W2021200351 hasConceptScore W2021200351C2777904410 @default.
- W2021200351 hasConceptScore W2021200351C2778618615 @default.
- W2021200351 hasConceptScore W2021200351C2989005 @default.
- W2021200351 hasConceptScore W2021200351C41008148 @default.
- W2021200351 hasConceptScore W2021200351C71924100 @default.
- W2021200351 hasConceptScore W2021200351C77331912 @default.
- W2021200351 hasLocation W20212003511 @default.
- W2021200351 hasOpenAccess W2021200351 @default.
- W2021200351 hasPrimaryLocation W20212003511 @default.
- W2021200351 hasRelatedWork W1968657670 @default.
- W2021200351 hasRelatedWork W1975234945 @default.
- W2021200351 hasRelatedWork W1975384827 @default.
- W2021200351 hasRelatedWork W1976802687 @default.
- W2021200351 hasRelatedWork W1986709457 @default.
- W2021200351 hasRelatedWork W1988971019 @default.
- W2021200351 hasRelatedWork W2004610999 @default.
- W2021200351 hasRelatedWork W2010537409 @default.
- W2021200351 hasRelatedWork W2011581877 @default.
- W2021200351 hasRelatedWork W2013081161 @default.
- W2021200351 hasRelatedWork W2022804512 @default.
- W2021200351 hasRelatedWork W2045356073 @default.
- W2021200351 hasRelatedWork W2066094751 @default.
- W2021200351 hasRelatedWork W2070378498 @default.
- W2021200351 hasRelatedWork W2126574183 @default.
- W2021200351 hasRelatedWork W2139477477 @default.
- W2021200351 hasRelatedWork W2460372965 @default.
- W2021200351 hasRelatedWork W2516906218 @default.
- W2021200351 hasRelatedWork W2517040557 @default.
- W2021200351 hasRelatedWork W2911600895 @default.
- W2021200351 isParatext "false" @default.
- W2021200351 isRetracted "false" @default.
- W2021200351 magId "2021200351" @default.
- W2021200351 workType "article" @default.