FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1832300178> ?p ?o ?g. }

• W1832300178 endingPage "181" @default.
• W1832300178 startingPage "164" @default.
• W1832300178 abstract "The purpose of this study is to evaluate the accuracy and reproducibility of the IsoCal geometric calibration system for kilovoltage (kV) and megavoltage (MV) imagers on Varian C-series linear accelerators (linacs). IsoCal calibration starts by imaging a phantom and collimator plate using MV images with different collimator angles, as well as MV and kV images at different gantry angles. The software then identifies objects on the collimator plate and in the phantom to determine the location of the treatment isocenter and its relation to the MV and kV imager centers. It calculates offsets between the positions of the imaging panels and the treatment isocenter as a function of gantry angle and writes a correction file that can be applied to MV and kV systems to correct for those offsets in the position of the panels. We performed IsoCal calibration three times on each of five Varian C-series linacs, each time with an independent setup. We then compared the IsoCal calibrations with a simplified Winston-Lutz (WL)-based system and with a Varian cubic phantom (VC)-based system. The maximum IsoCal corrections ranged from 0.7 mm to 1.5 mm for MV and 0.9 mm to 1.8 mm for kV imagers across the five linacs. The variations in the three calibrations for each linac were less than 0.2 mm. Without IsoCal correction, the WL results showed discrepancies between the treatment isocenter and the imager center of 0.9 mm to 1.6 mm (for the MV imager) and 0.5 mm to 1.1 mm (for the kV imager); with IsoCal corrections applied, the differences were reduced to 0.2 mm to 0.6 mm (MV) and 0.3 mm to 0.6 mm (kV) across the five linacs. The VC system was not as precise as the WL system, but showed similar results, with discrepancies of less than 1.0 mm when the IsoCal corrections were applied. We conclude that IsoCal is an accurate and consistent method for calibration and periodic quality assurance of MV and kV imaging systems. PACS numbers: 87.55.Qr, 87.56.Fc" @default.
• W1832300178 created "2016-06-24" @default.
• W1832300178 creator A5003524485 @default.
• W1832300178 creator A5026263726 @default.
• W1832300178 creator A5058839299 @default.
• W1832300178 creator A5073275198 @default.
• W1832300178 creator A5075259246 @default.
• W1832300178 date "2014-05-01" @default.
• W1832300178 modified "2023-09-23" @default.
• W1832300178 title "Evaluation of IsoCal geometric calibration system for Varian linacs equipped with on-board imager and electronic portal imaging device imaging systems" @default.
• W1832300178 cites W1977531599 @default.
• W1832300178 cites W1982006500 @default.
• W1832300178 cites W1988926007 @default.
• W1832300178 cites W2035109934 @default.
• W1832300178 cites W2035262450 @default.
• W1832300178 cites W2078145091 @default.
• W1832300178 cites W2093865011 @default.
• W1832300178 cites W2094921347 @default.
• W1832300178 cites W2097004468 @default.
• W1832300178 cites W2105874637 @default.
• W1832300178 cites W2136065645 @default.
• W1832300178 cites W2156720552 @default.
• W1832300178 cites W2162161815 @default.
• W1832300178 cites W2167851738 @default.
• W1832300178 doi "https://doi.org/10.1120/jacmp.v15i3.4688" @default.
• W1832300178 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5711040" @default.
• W1832300178 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24892342" @default.
• W1832300178 hasPublicationYear "2014" @default.
• W1832300178 type Work @default.
• W1832300178 sameAs 1832300178 @default.
• W1832300178 citedByCount "43" @default.
• W1832300178 countsByYear W18323001782014 @default.
• W1832300178 countsByYear W18323001782015 @default.
• W1832300178 countsByYear W18323001782016 @default.
• W1832300178 countsByYear W18323001782017 @default.
• W1832300178 countsByYear W18323001782018 @default.
• W1832300178 countsByYear W18323001782019 @default.
• W1832300178 countsByYear W18323001782020 @default.
• W1832300178 countsByYear W18323001782021 @default.
• W1832300178 countsByYear W18323001782022 @default.
• W1832300178 countsByYear W18323001782023 @default.
• W1832300178 crossrefType "journal-article" @default.
• W1832300178 hasAuthorship W1832300178A5003524485 @default.
• W1832300178 hasAuthorship W1832300178A5026263726 @default.
• W1832300178 hasAuthorship W1832300178A5058839299 @default.
• W1832300178 hasAuthorship W1832300178A5073275198 @default.
• W1832300178 hasAuthorship W1832300178A5075259246 @default.
• W1832300178 hasBestOaLocation W18323001781 @default.
• W1832300178 hasConcept C104293457 @default.
• W1832300178 hasConcept C105795698 @default.
• W1832300178 hasConcept C120665830 @default.
• W1832300178 hasConcept C121332964 @default.
• W1832300178 hasConcept C165838908 @default.
• W1832300178 hasConcept C168834538 @default.
• W1832300178 hasConcept C180048950 @default.
• W1832300178 hasConcept C181401712 @default.
• W1832300178 hasConcept C2779200277 @default.
• W1832300178 hasConcept C2989005 @default.
• W1832300178 hasConcept C33923547 @default.
• W1832300178 hasConcept C62520636 @default.
• W1832300178 hasConcept C71924100 @default.
• W1832300178 hasConcept C75088862 @default.
• W1832300178 hasConcept C9893847 @default.
• W1832300178 hasConceptScore W1832300178C104293457 @default.
• W1832300178 hasConceptScore W1832300178C105795698 @default.
• W1832300178 hasConceptScore W1832300178C120665830 @default.
• W1832300178 hasConceptScore W1832300178C121332964 @default.
• W1832300178 hasConceptScore W1832300178C165838908 @default.
• W1832300178 hasConceptScore W1832300178C168834538 @default.
• W1832300178 hasConceptScore W1832300178C180048950 @default.
• W1832300178 hasConceptScore W1832300178C181401712 @default.
• W1832300178 hasConceptScore W1832300178C2779200277 @default.
• W1832300178 hasConceptScore W1832300178C2989005 @default.
• W1832300178 hasConceptScore W1832300178C33923547 @default.
• W1832300178 hasConceptScore W1832300178C62520636 @default.
• W1832300178 hasConceptScore W1832300178C71924100 @default.
• W1832300178 hasConceptScore W1832300178C75088862 @default.
• W1832300178 hasConceptScore W1832300178C9893847 @default.
• W1832300178 hasIssue "3" @default.
• W1832300178 hasLocation W18323001781 @default.
• W1832300178 hasLocation W18323001782 @default.
• W1832300178 hasLocation W18323001783 @default.
• W1832300178 hasLocation W18323001784 @default.
• W1832300178 hasOpenAccess W1832300178 @default.
• W1832300178 hasPrimaryLocation W18323001781 @default.
• W1832300178 hasRelatedWork W1832300178 @default.
• W1832300178 hasRelatedWork W1974904652 @default.
• W1832300178 hasRelatedWork W1992545387 @default.
• W1832300178 hasRelatedWork W2020549587 @default.
• W1832300178 hasRelatedWork W2039570896 @default.
• W1832300178 hasRelatedWork W2051111147 @default.
• W1832300178 hasRelatedWork W2096483803 @default.
• W1832300178 hasRelatedWork W2415521506 @default.
• W1832300178 hasRelatedWork W2811131670 @default.
• W1832300178 hasRelatedWork W4220699612 @default.
• W1832300178 hasVolume "15" @default.
• W1832300178 isParatext "false" @default.
• W1832300178 isRetracted "false" @default.

• next