Matches in SemOpenAlex for { <https://semopenalex.org/work/W2023269784> ?p ?o ?g. }
Showing items 1 to 86 of
86
with 100 items per page.
- W2023269784 endingPage "3910" @default.
- W2023269784 startingPage "3910" @default.
- W2023269784 abstract "Purpose: Using a single isocenter significantly reduces delivery times in radiosurgery involving multiple targets. However, because not every target can be placed at isocenter with this type of treatment, a conventional Winston-Lutz test cannot be used. We describe a novel Winston-Lutz like mulitarget test (MTT) for verifying accurate positioning. Methods: A target phantom, comprised of an acrylic plate with recesses for three 3/4″ spheres was constructed and a high-resolution (0.5×0.5×0.8 mm) CT scan obtained with PTFE spheres placed in the recesses. The scan was imported into a commercial treatment planning system and multiple beams were prepared, having their isocenter at the centroid of the arrangement of spheres. Every beam incorporated three MLC-defined rectangular apertures that circumscribed the spheres. Custom software selected setup parameters (table, gantry and collimator angle, MLC openings) such that the spheres were centered as precisely as possible within their respective MLC fields, considering the discrete width of collimator leaves. The phantom, with the PTFE replaced by steel spheres, was placed on the treatment couch and imaged using stereoscopic x-ray beams. A 6 degree-of-freedom robotic couch applied translations and rotations to reproduce the CT position. A MV EPID rendered images of the spheres within their respective apertures, allowing identification of sphere and aperture centers. Any error upstream would manifest itself as inaccurate centering of a sphere. Results: Eight beams with table angle 0 and two beams each with table angles 49.7, 89.8, 272.3, and 310.1 were selected. The maximum calculated distance between any sphere and the respective aperture center was 0.07 mm. The median difference measured from the MV images ranged from 0.1 mm to 1.4 mm with a median of 0.8 mm. Conclusions: The MTT is a practical end-to-end test for quality assurance of the entire positioning process in multitarget radiosurgery, from CT scanning to beam delivery." @default.
- W2023269784 created "2016-06-24" @default.
- W2023269784 creator A5001122919 @default.
- W2023269784 creator A5002955341 @default.
- W2023269784 creator A5010283199 @default.
- W2023269784 creator A5031840089 @default.
- W2023269784 creator A5039661629 @default.
- W2023269784 creator A5059680487 @default.
- W2023269784 creator A5091161682 @default.
- W2023269784 date "2012-06-01" @default.
- W2023269784 modified "2023-09-23" @default.
- W2023269784 title "TU-E-BRB-11: End-To-End Positioning Quality Assurance for Image-Guided Radiosurgery of Multiple Targets Using a Single-Isocenter" @default.
- W2023269784 doi "https://doi.org/10.1118/1.4735960" @default.
- W2023269784 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/28518657" @default.
- W2023269784 hasPublicationYear "2012" @default.
- W2023269784 type Work @default.
- W2023269784 sameAs 2023269784 @default.
- W2023269784 citedByCount "0" @default.
- W2023269784 crossrefType "journal-article" @default.
- W2023269784 hasAuthorship W2023269784A5001122919 @default.
- W2023269784 hasAuthorship W2023269784A5002955341 @default.
- W2023269784 hasAuthorship W2023269784A5010283199 @default.
- W2023269784 hasAuthorship W2023269784A5031840089 @default.
- W2023269784 hasAuthorship W2023269784A5039661629 @default.
- W2023269784 hasAuthorship W2023269784A5059680487 @default.
- W2023269784 hasAuthorship W2023269784A5091161682 @default.
- W2023269784 hasConcept C104293457 @default.
- W2023269784 hasConcept C120665830 @default.
- W2023269784 hasConcept C121332964 @default.
- W2023269784 hasConcept C126838900 @default.
- W2023269784 hasConcept C1276947 @default.
- W2023269784 hasConcept C154945302 @default.
- W2023269784 hasConcept C168834538 @default.
- W2023269784 hasConcept C181401712 @default.
- W2023269784 hasConcept C24890656 @default.
- W2023269784 hasConcept C2779200277 @default.
- W2023269784 hasConcept C2780387249 @default.
- W2023269784 hasConcept C2989005 @default.
- W2023269784 hasConcept C31601959 @default.
- W2023269784 hasConcept C41008148 @default.
- W2023269784 hasConcept C509974204 @default.
- W2023269784 hasConcept C71924100 @default.
- W2023269784 hasConcept C72422203 @default.
- W2023269784 hasConcept C78336883 @default.
- W2023269784 hasConcept C9267231 @default.
- W2023269784 hasConceptScore W2023269784C104293457 @default.
- W2023269784 hasConceptScore W2023269784C120665830 @default.
- W2023269784 hasConceptScore W2023269784C121332964 @default.
- W2023269784 hasConceptScore W2023269784C126838900 @default.
- W2023269784 hasConceptScore W2023269784C1276947 @default.
- W2023269784 hasConceptScore W2023269784C154945302 @default.
- W2023269784 hasConceptScore W2023269784C168834538 @default.
- W2023269784 hasConceptScore W2023269784C181401712 @default.
- W2023269784 hasConceptScore W2023269784C24890656 @default.
- W2023269784 hasConceptScore W2023269784C2779200277 @default.
- W2023269784 hasConceptScore W2023269784C2780387249 @default.
- W2023269784 hasConceptScore W2023269784C2989005 @default.
- W2023269784 hasConceptScore W2023269784C31601959 @default.
- W2023269784 hasConceptScore W2023269784C41008148 @default.
- W2023269784 hasConceptScore W2023269784C509974204 @default.
- W2023269784 hasConceptScore W2023269784C71924100 @default.
- W2023269784 hasConceptScore W2023269784C72422203 @default.
- W2023269784 hasConceptScore W2023269784C78336883 @default.
- W2023269784 hasConceptScore W2023269784C9267231 @default.
- W2023269784 hasIssue "6Part24" @default.
- W2023269784 hasLocation W20232697841 @default.
- W2023269784 hasLocation W20232697842 @default.
- W2023269784 hasOpenAccess W2023269784 @default.
- W2023269784 hasPrimaryLocation W20232697841 @default.
- W2023269784 hasRelatedWork W1994447045 @default.
- W2023269784 hasRelatedWork W1995627326 @default.
- W2023269784 hasRelatedWork W2014920921 @default.
- W2023269784 hasRelatedWork W2025656351 @default.
- W2023269784 hasRelatedWork W2035250179 @default.
- W2023269784 hasRelatedWork W2040125391 @default.
- W2023269784 hasRelatedWork W2044456859 @default.
- W2023269784 hasRelatedWork W2048241981 @default.
- W2023269784 hasRelatedWork W2051111147 @default.
- W2023269784 hasRelatedWork W2168792848 @default.
- W2023269784 hasVolume "39" @default.
- W2023269784 isParatext "false" @default.
- W2023269784 isRetracted "false" @default.
- W2023269784 magId "2023269784" @default.
- W2023269784 workType "article" @default.