Matches in SemOpenAlex for { <https://semopenalex.org/work/W2897672072> ?p ?o ?g. }
Showing items 1 to 90 of
90
with 100 items per page.
- W2897672072 endingPage "683" @default.
- W2897672072 startingPage "680" @default.
- W2897672072 abstract "ObjectiveTo quantitatively assess the plan quality of conventional fractionated volumetric modulated arc therapy (VMAT) plans for liver cancer treatments using flattening filter-free (FFF) and flattening filter (FF) modes based on plan quality metric (PQM).MethodsA total of ten patients with liver tumor were selected. The patients were planned in FF and FFF mode of 6 MV X-ray respectively. The dose distribution of the planning target volume (PTV) and the organ at risk (OAR) were evaluated, and the monitor units (MUs) and the beam on time (BoT) were compared. According to the clinical requirements, a PQM with 16 submetrics was defined to evaluate the plan quality of the two modes.ResultsThe maximal dose of FFF plan was less than that of FF plan (t=3.828, P<0.05). The normalized volume of 5 Gy (V5) and mean dose (Dmean) of the normal liver of FFF plan were lower than those of the FF plan (t=2.716, 3.007, P<0.05). The average MU of FFF plan [(574±130) MU] was higher than that of FF plan [(518±81) MU](t=-2.782, P<0.05), while the average BoT of FFF plan [(108±36)s] was significantly lower than that of FF plan [(160±29) s](t=6.767, P<0.05). The score of FFF plan was higher than that of FF plan (t=-2.746, P<0.05).ConclusionsFFF mode can better protect the OAR at low dose levels. The MU of FFF mode plan were higher, but the beam on time was significantly lower than FF mode plan. With reference to the PQM evaluation criteria, the overall plan quality of the FFF mode was slightly higher.Key words: Plan quality metric; Flattening filter-free; Liver cancer; Volumetric modulated arc therapy; Dosimetry" @default.
- W2897672072 created "2018-10-26" @default.
- W2897672072 creator A5001238882 @default.
- W2897672072 creator A5013689685 @default.
- W2897672072 creator A5022180567 @default.
- W2897672072 creator A5023000771 @default.
- W2897672072 creator A5034570457 @default.
- W2897672072 creator A5049303906 @default.
- W2897672072 creator A5055506345 @default.
- W2897672072 creator A5056146445 @default.
- W2897672072 date "2018-09-25" @default.
- W2897672072 modified "2023-09-23" @default.
- W2897672072 title "Quantitative comparison of volumetric-modulated arc therapy plans for liver cancer using flattening filter-free and flattening filter modes based on plan quality metric (PQM)" @default.
- W2897672072 doi "https://doi.org/10.3760/cma.j.issn.0254-5098.2018.09.008" @default.
- W2897672072 hasPublicationYear "2018" @default.
- W2897672072 type Work @default.
- W2897672072 sameAs 2897672072 @default.
- W2897672072 citedByCount "0" @default.
- W2897672072 crossrefType "journal-article" @default.
- W2897672072 hasAuthorship W2897672072A5001238882 @default.
- W2897672072 hasAuthorship W2897672072A5013689685 @default.
- W2897672072 hasAuthorship W2897672072A5022180567 @default.
- W2897672072 hasAuthorship W2897672072A5023000771 @default.
- W2897672072 hasAuthorship W2897672072A5034570457 @default.
- W2897672072 hasAuthorship W2897672072A5049303906 @default.
- W2897672072 hasAuthorship W2897672072A5055506345 @default.
- W2897672072 hasAuthorship W2897672072A5056146445 @default.
- W2897672072 hasConcept C106131492 @default.
- W2897672072 hasConcept C127413603 @default.
- W2897672072 hasConcept C151730666 @default.
- W2897672072 hasConcept C159985019 @default.
- W2897672072 hasConcept C176217482 @default.
- W2897672072 hasConcept C185592680 @default.
- W2897672072 hasConcept C192562407 @default.
- W2897672072 hasConcept C19444555 @default.
- W2897672072 hasConcept C21547014 @default.
- W2897672072 hasConcept C2776505523 @default.
- W2897672072 hasConcept C2989005 @default.
- W2897672072 hasConcept C31972630 @default.
- W2897672072 hasConcept C33923547 @default.
- W2897672072 hasConcept C41008148 @default.
- W2897672072 hasConcept C71924100 @default.
- W2897672072 hasConcept C86803240 @default.
- W2897672072 hasConceptScore W2897672072C106131492 @default.
- W2897672072 hasConceptScore W2897672072C127413603 @default.
- W2897672072 hasConceptScore W2897672072C151730666 @default.
- W2897672072 hasConceptScore W2897672072C159985019 @default.
- W2897672072 hasConceptScore W2897672072C176217482 @default.
- W2897672072 hasConceptScore W2897672072C185592680 @default.
- W2897672072 hasConceptScore W2897672072C192562407 @default.
- W2897672072 hasConceptScore W2897672072C19444555 @default.
- W2897672072 hasConceptScore W2897672072C21547014 @default.
- W2897672072 hasConceptScore W2897672072C2776505523 @default.
- W2897672072 hasConceptScore W2897672072C2989005 @default.
- W2897672072 hasConceptScore W2897672072C31972630 @default.
- W2897672072 hasConceptScore W2897672072C33923547 @default.
- W2897672072 hasConceptScore W2897672072C41008148 @default.
- W2897672072 hasConceptScore W2897672072C71924100 @default.
- W2897672072 hasConceptScore W2897672072C86803240 @default.
- W2897672072 hasIssue "9" @default.
- W2897672072 hasLocation W28976720721 @default.
- W2897672072 hasOpenAccess W2897672072 @default.
- W2897672072 hasPrimaryLocation W28976720721 @default.
- W2897672072 hasRelatedWork W1031116639 @default.
- W2897672072 hasRelatedWork W1126394416 @default.
- W2897672072 hasRelatedWork W1156866811 @default.
- W2897672072 hasRelatedWork W1189878317 @default.
- W2897672072 hasRelatedWork W1984674159 @default.
- W2897672072 hasRelatedWork W2017078052 @default.
- W2897672072 hasRelatedWork W2040707408 @default.
- W2897672072 hasRelatedWork W2049851966 @default.
- W2897672072 hasRelatedWork W2058878656 @default.
- W2897672072 hasRelatedWork W2105854710 @default.
- W2897672072 hasRelatedWork W2141259419 @default.
- W2897672072 hasRelatedWork W2284937652 @default.
- W2897672072 hasRelatedWork W2346540316 @default.
- W2897672072 hasRelatedWork W2470176049 @default.
- W2897672072 hasRelatedWork W2904046399 @default.
- W2897672072 hasRelatedWork W3021374548 @default.
- W2897672072 hasRelatedWork W3030695841 @default.
- W2897672072 hasRelatedWork W3031815002 @default.
- W2897672072 hasRelatedWork W3032354909 @default.
- W2897672072 hasRelatedWork W2774019142 @default.
- W2897672072 hasVolume "38" @default.
- W2897672072 isParatext "false" @default.
- W2897672072 isRetracted "false" @default.
- W2897672072 magId "2897672072" @default.
- W2897672072 workType "article" @default.