Matches in SemOpenAlex for { <https://semopenalex.org/work/W1983897444> ?p ?o ?g. }
Showing items 1 to 68 of
68
with 100 items per page.
- W1983897444 endingPage "368" @default.
- W1983897444 startingPage "368" @default.
- W1983897444 abstract "Purpose: The purpose of the investigation is two-fold. To determine clinical use sensitivity of the high and low dose rate modes of flattening filter free (FFF) inverse modulation radiotherapy (IMRT) treatment plans compared to flattened beam plans. Secondly, do the FFF plans have a conformity advantage? Methods: Planning comparisons were performed on C-shape (AAPM TG-119) and mock head and neck (H&N) cases for high and low dose rate 7MV FFF modes, 2000 (7UF2000) and 500 (7UF500) monitor units (MU) per minute, respectively, as well as for the 6MV-Flat 300MU/min option. The 7UF2000 beam is limited to a minimum segment dose of 10MU. Plans utilized 200cGy and 500cGy fractionation schemes. Plans were compared based on target dose conformity index(CI) and heterogeneity, critical structure dose, integral dose, MU, segments, fractionation and the dose falloff at critical structures. Results: Data collected indicate that there is minimal difference between the three techniques in the 200cGy C-shape plans. The high dose rate 7UF2000 was hotter for both cases than other techniques in conventional fractionation. For both fractionation levels in the C-shape plans the 7UF500 technique provides a lower critical structure dose, however, the 7UF2000 200cGy level achieves the opposite. The dose falloff is worse in both cases at low fractionation for 7UF2000, whereas, at high fractionation dose falloff is similar. The CI for the 7UF2000 technique at 200cGy fractionation is less than other techniques. Conclusion: A clinically relevant finding was the potential of reduced conformity for the 7UF2000 technique compared to 7UF500 and 6MV-Flat with conventional fractionation. The minimum deliverable MU/segment limitation results in a coarse granularity that impedes the optimizer in achieving adequate target coverage. Conversely, the 7UF500 results were comparable with those of the 6MV-Flat. The potential high conformity of FFF beams over like energy flattened beams was equivocal. Further investigations are ongoing. Funding support provided by the American Lebanese Syrian Associated Charities." @default.
- W1983897444 created "2016-06-24" @default.
- W1983897444 creator A5014630986 @default.
- W1983897444 creator A5051604621 @default.
- W1983897444 creator A5082505829 @default.
- W1983897444 date "2013-06-01" @default.
- W1983897444 modified "2023-09-23" @default.
- W1983897444 title "SU-E-T-704: Differences Between 7MV-Flattening Filter Free and 6MV-Flat Intensity Modulated Radiotherapy Plans at Different Fractionation and Dose Rates" @default.
- W1983897444 doi "https://doi.org/10.1118/1.4815131" @default.
- W1983897444 hasPublicationYear "2013" @default.
- W1983897444 type Work @default.
- W1983897444 sameAs 1983897444 @default.
- W1983897444 citedByCount "0" @default.
- W1983897444 crossrefType "journal-article" @default.
- W1983897444 hasAuthorship W1983897444A5014630986 @default.
- W1983897444 hasAuthorship W1983897444A5051604621 @default.
- W1983897444 hasAuthorship W1983897444A5082505829 @default.
- W1983897444 hasConcept C120665830 @default.
- W1983897444 hasConcept C121332964 @default.
- W1983897444 hasConcept C126838900 @default.
- W1983897444 hasConcept C155806632 @default.
- W1983897444 hasConcept C159985019 @default.
- W1983897444 hasConcept C185592680 @default.
- W1983897444 hasConcept C192562407 @default.
- W1983897444 hasConcept C19444555 @default.
- W1983897444 hasConcept C2779328170 @default.
- W1983897444 hasConcept C2989005 @default.
- W1983897444 hasConcept C43617362 @default.
- W1983897444 hasConcept C509974204 @default.
- W1983897444 hasConcept C71924100 @default.
- W1983897444 hasConcept C75088862 @default.
- W1983897444 hasConcept C97428945 @default.
- W1983897444 hasConceptScore W1983897444C120665830 @default.
- W1983897444 hasConceptScore W1983897444C121332964 @default.
- W1983897444 hasConceptScore W1983897444C126838900 @default.
- W1983897444 hasConceptScore W1983897444C155806632 @default.
- W1983897444 hasConceptScore W1983897444C159985019 @default.
- W1983897444 hasConceptScore W1983897444C185592680 @default.
- W1983897444 hasConceptScore W1983897444C192562407 @default.
- W1983897444 hasConceptScore W1983897444C19444555 @default.
- W1983897444 hasConceptScore W1983897444C2779328170 @default.
- W1983897444 hasConceptScore W1983897444C2989005 @default.
- W1983897444 hasConceptScore W1983897444C43617362 @default.
- W1983897444 hasConceptScore W1983897444C509974204 @default.
- W1983897444 hasConceptScore W1983897444C71924100 @default.
- W1983897444 hasConceptScore W1983897444C75088862 @default.
- W1983897444 hasConceptScore W1983897444C97428945 @default.
- W1983897444 hasIssue "6Part22" @default.
- W1983897444 hasLocation W19838974441 @default.
- W1983897444 hasOpenAccess W1983897444 @default.
- W1983897444 hasPrimaryLocation W19838974441 @default.
- W1983897444 hasRelatedWork W2016681837 @default.
- W1983897444 hasRelatedWork W2096163540 @default.
- W1983897444 hasRelatedWork W2116314203 @default.
- W1983897444 hasRelatedWork W2163431022 @default.
- W1983897444 hasRelatedWork W2796229980 @default.
- W1983897444 hasRelatedWork W2801909118 @default.
- W1983897444 hasRelatedWork W3005748790 @default.
- W1983897444 hasRelatedWork W3029539430 @default.
- W1983897444 hasRelatedWork W3030063216 @default.
- W1983897444 hasRelatedWork W3141646066 @default.
- W1983897444 hasVolume "40" @default.
- W1983897444 isParatext "false" @default.
- W1983897444 isRetracted "false" @default.
- W1983897444 magId "1983897444" @default.
- W1983897444 workType "article" @default.