FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W996930675> ?p ?o ?g. }

• W996930675 endingPage "3280" @default.
• W996930675 startingPage "3280" @default.
• W996930675 abstract "Purpose: To assess dose calculation accuracy of cone-beam CT (CBCT) based treatment plans using a patient-specific stepwise CT-density conversion table in comparison to conventional CT-based treatment plans. Methods: Unlike CT-based treatment planning which use fixed CT-density table, this study used patient-specific CT-density table to minimize the errors in reconstructed mass densities due to the effects of CBCT Hounsfield unit (HU) uncertainties. The patient-specific CT-density table was a stepwise function which maps HUs to only 6 classes of materials with different mass densities: air (0.00121g/cm3), lung (0.26g/cm3), adipose (0.95g/cm3), tissue (1.05 g/cm3), cartilage/bone (1.6g/cm3), and other (3g/cm3). HU thresholds to define different materials were adjusted for each CBCT via best match with the known tissue types in these images. Dose distributions were compared between CT-based plans and CBCT-based plans (IMRT/VMAT) for four types of treatment sites: head and neck (HN), lung, pancreas, and pelvis. For dosimetric comparison, PTV mean dose in both plans were compared. A gamma analysis was also performed to directly compare dosimetry in the two plans. Results: Compared to CT-based plans, the differences for PTV mean dose were 0.1% for pelvis, 1.1% for pancreas, 1.8% for lung, and −2.5% for HN in CBCT-based plans. The gamma passing rate was 99.8% for pelvis, 99.6% for pancreas, and 99.3% for lung with 3%/3mm criteria, and 80.5% for head and neck with 5%/3mm criteria. Different dosimetry accuracy level was observed: 1% for pelvis, 3% for lung and pancreas, and 5% for head and neck. Conclusion: By converting CBCT data to 6 classes of materials for dose calculation, 3% of dose calculation accuracy can be achieved for anatomical sites studied here, except HN which had a 5% accuracy. CBCT-based treatment planning using a patient-specific stepwise CT-density table can facilitate the evaluation of dosimetry changes resulting from variation in patient anatomy." @default.
• W996930675 created "2016-06-24" @default.
• W996930675 creator A5005555955 @default.
• W996930675 creator A5014572211 @default.
• W996930675 creator A5017143012 @default.
• W996930675 creator A5041626964 @default.
• W996930675 creator A5060853434 @default.
• W996930675 date "2015-06-01" @default.
• W996930675 modified "2023-10-18" @default.
• W996930675 title "SU-E-J-72: Dosimetric Study of Cone-Beam CT-Based Radiation Treatment Planning Using a Patient-Specific Stepwise CT-Density Table" @default.
• W996930675 doi "https://doi.org/10.1118/1.4924159" @default.
• W996930675 hasPublicationYear "2015" @default.
• W996930675 type Work @default.
• W996930675 sameAs 996930675 @default.
• W996930675 citedByCount "1" @default.
• W996930675 countsByYear W9969306752016 @default.
• W996930675 crossrefType "journal-article" @default.
• W996930675 hasAuthorship W996930675A5005555955 @default.
• W996930675 hasAuthorship W996930675A5014572211 @default.
• W996930675 hasAuthorship W996930675A5017143012 @default.
• W996930675 hasAuthorship W996930675A5041626964 @default.
• W996930675 hasAuthorship W996930675A5060853434 @default.
• W996930675 hasConcept C126838900 @default.
• W996930675 hasConcept C141071460 @default.
• W996930675 hasConcept C187954543 @default.
• W996930675 hasConcept C201645570 @default.
• W996930675 hasConcept C2778357063 @default.
• W996930675 hasConcept C2779813781 @default.
• W996930675 hasConcept C2989005 @default.
• W996930675 hasConcept C3018399558 @default.
• W996930675 hasConcept C3018411727 @default.
• W996930675 hasConcept C509974204 @default.
• W996930675 hasConcept C544519230 @default.
• W996930675 hasConcept C71924100 @default.
• W996930675 hasConcept C75088862 @default.
• W996930675 hasConceptScore W996930675C126838900 @default.
• W996930675 hasConceptScore W996930675C141071460 @default.
• W996930675 hasConceptScore W996930675C187954543 @default.
• W996930675 hasConceptScore W996930675C201645570 @default.
• W996930675 hasConceptScore W996930675C2778357063 @default.
• W996930675 hasConceptScore W996930675C2779813781 @default.
• W996930675 hasConceptScore W996930675C2989005 @default.
• W996930675 hasConceptScore W996930675C3018399558 @default.
• W996930675 hasConceptScore W996930675C3018411727 @default.
• W996930675 hasConceptScore W996930675C509974204 @default.
• W996930675 hasConceptScore W996930675C544519230 @default.
• W996930675 hasConceptScore W996930675C71924100 @default.
• W996930675 hasConceptScore W996930675C75088862 @default.
• W996930675 hasIssue "6Part8" @default.
• W996930675 hasLocation W9969306751 @default.
• W996930675 hasOpenAccess W996930675 @default.
• W996930675 hasPrimaryLocation W9969306751 @default.
• W996930675 hasRelatedWork W1642012722 @default.
• W996930675 hasRelatedWork W2049394478 @default.
• W996930675 hasRelatedWork W2071867245 @default.
• W996930675 hasRelatedWork W2073671715 @default.
• W996930675 hasRelatedWork W2075565253 @default.
• W996930675 hasRelatedWork W2151127213 @default.
• W996930675 hasRelatedWork W2266400876 @default.
• W996930675 hasRelatedWork W2287344295 @default.
• W996930675 hasRelatedWork W2469536451 @default.
• W996930675 hasRelatedWork W3031306062 @default.
• W996930675 hasVolume "42" @default.
• W996930675 isParatext "false" @default.
• W996930675 isRetracted "false" @default.
• W996930675 magId "996930675" @default.
• W996930675 workType "article" @default.