Matches in SemOpenAlex for { <https://semopenalex.org/work/W2044993375> ?p ?o ?g. }
Showing items 1 to 84 of
84
with 100 items per page.
- W2044993375 abstract "Purpose: As many clinics would prefer to use a pair of kV radiographs for gated patient setup, it is important to quantify the possible errors that could occur due to the non‐simultaneity of the acquisitions. Method and Materials: The data set from 11 patients includes internal and external coordinates acquired at 30Hz during multi‐fraction SBRT treatments. We simulated a gated setup procedure which included an AP radiograph, followed by a lateral radiograph. The time interval between the two radiographic acquisitions was set to a minimum of 30 seconds based on our clinical experience. The setup position is derived from a combination of both the initial (AP) and the second (LAT) image in the following way: LR setup = LR initial , SI setup = SI initial + ( SI second − SI initial )/2, AP setup = AP second . The 3D error is then the magnitude of the vector from the initial position to the setup position. The calculation was done for every exhale phase in the data for which there was another one at least 30 seconds later at an amplitude within 2 mm from the first. In all, 1908 data points were analyzed.Results: The 3D error is found to be less than 2 mm for 91% of the data points and less than 3 mm for 97% of the data. The maximum error found was 7.5 mm. 97.5% of the second acquisitions could be completed within 35 seconds of the first. The maximum time interval found was 42 seconds. No correlation was found between the length of the time interval and the 3D error. Conclusion: When acquiring gated radiographs for patient setup, no large setup errors should be expected if those images are not taken simultaneously. Conflict of Interest: This work was sponsored, in part, by a grant from Varian Medical Systems, Inc." @default.
- W2044993375 created "2016-06-24" @default.
- W2044993375 creator A5020774876 @default.
- W2044993375 creator A5030837623 @default.
- W2044993375 creator A5064452659 @default.
- W2044993375 date "2009-06-01" @default.
- W2044993375 modified "2023-10-03" @default.
- W2044993375 title "SU-FF-J-61: Evaluation of the Need for Simultaneous Orthogonal Gated Setup Imaging" @default.
- W2044993375 doi "https://doi.org/10.1118/1.3181353" @default.
- W2044993375 hasPublicationYear "2009" @default.
- W2044993375 type Work @default.
- W2044993375 sameAs 2044993375 @default.
- W2044993375 citedByCount "0" @default.
- W2044993375 crossrefType "journal-article" @default.
- W2044993375 hasAuthorship W2044993375A5020774876 @default.
- W2044993375 hasAuthorship W2044993375A5030837623 @default.
- W2044993375 hasAuthorship W2044993375A5064452659 @default.
- W2044993375 hasConcept C10138342 @default.
- W2044993375 hasConcept C105795698 @default.
- W2044993375 hasConcept C114614502 @default.
- W2044993375 hasConcept C120665830 @default.
- W2044993375 hasConcept C121332964 @default.
- W2044993375 hasConcept C162324750 @default.
- W2044993375 hasConcept C177264268 @default.
- W2044993375 hasConcept C180205008 @default.
- W2044993375 hasConcept C185544564 @default.
- W2044993375 hasConcept C198082294 @default.
- W2044993375 hasConcept C199360897 @default.
- W2044993375 hasConcept C2778067643 @default.
- W2044993375 hasConcept C2989005 @default.
- W2044993375 hasConcept C33923547 @default.
- W2044993375 hasConcept C36454342 @default.
- W2044993375 hasConcept C41008148 @default.
- W2044993375 hasConcept C58489278 @default.
- W2044993375 hasConcept C71924100 @default.
- W2044993375 hasConcept C74650414 @default.
- W2044993375 hasConcept C91317487 @default.
- W2044993375 hasConceptScore W2044993375C10138342 @default.
- W2044993375 hasConceptScore W2044993375C105795698 @default.
- W2044993375 hasConceptScore W2044993375C114614502 @default.
- W2044993375 hasConceptScore W2044993375C120665830 @default.
- W2044993375 hasConceptScore W2044993375C121332964 @default.
- W2044993375 hasConceptScore W2044993375C162324750 @default.
- W2044993375 hasConceptScore W2044993375C177264268 @default.
- W2044993375 hasConceptScore W2044993375C180205008 @default.
- W2044993375 hasConceptScore W2044993375C185544564 @default.
- W2044993375 hasConceptScore W2044993375C198082294 @default.
- W2044993375 hasConceptScore W2044993375C199360897 @default.
- W2044993375 hasConceptScore W2044993375C2778067643 @default.
- W2044993375 hasConceptScore W2044993375C2989005 @default.
- W2044993375 hasConceptScore W2044993375C33923547 @default.
- W2044993375 hasConceptScore W2044993375C36454342 @default.
- W2044993375 hasConceptScore W2044993375C41008148 @default.
- W2044993375 hasConceptScore W2044993375C58489278 @default.
- W2044993375 hasConceptScore W2044993375C71924100 @default.
- W2044993375 hasConceptScore W2044993375C74650414 @default.
- W2044993375 hasConceptScore W2044993375C91317487 @default.
- W2044993375 hasLocation W20449933751 @default.
- W2044993375 hasOpenAccess W2044993375 @default.
- W2044993375 hasPrimaryLocation W20449933751 @default.
- W2044993375 hasRelatedWork W1964273063 @default.
- W2044993375 hasRelatedWork W1968266154 @default.
- W2044993375 hasRelatedWork W1977166662 @default.
- W2044993375 hasRelatedWork W1999042636 @default.
- W2044993375 hasRelatedWork W1999714018 @default.
- W2044993375 hasRelatedWork W2041772206 @default.
- W2044993375 hasRelatedWork W2065910085 @default.
- W2044993375 hasRelatedWork W2067438453 @default.
- W2044993375 hasRelatedWork W2073218331 @default.
- W2044993375 hasRelatedWork W2073234277 @default.
- W2044993375 hasRelatedWork W2079534156 @default.
- W2044993375 hasRelatedWork W2132945592 @default.
- W2044993375 hasRelatedWork W2562774930 @default.
- W2044993375 hasRelatedWork W2792256465 @default.
- W2044993375 hasRelatedWork W2888421512 @default.
- W2044993375 hasRelatedWork W2892261379 @default.
- W2044993375 hasRelatedWork W3028740830 @default.
- W2044993375 hasRelatedWork W3032592022 @default.
- W2044993375 hasRelatedWork W3208196424 @default.
- W2044993375 hasRelatedWork W2188104221 @default.
- W2044993375 isParatext "false" @default.
- W2044993375 isRetracted "false" @default.
- W2044993375 magId "2044993375" @default.
- W2044993375 workType "article" @default.