Matches in SemOpenAlex for { <https://semopenalex.org/work/W2014964802> ?p ?o ?g. }
Showing items 1 to 94 of
94
with 100 items per page.
- W2014964802 abstract "Purpose: To develop a three‐dimensional (3D) deformable head‐and‐neck (H&N) phantom with realistic tissue contrast for both kilovoltage (kV) and megavoltage (MV) imaging modalities and use it to objectively evaluate deformable image registration (DIR) algorithms. Methods: The phantom represents H&N patient anatomy. It is constructed from thermoplastic, which becomes pliable in boiling water, and hardened epoxy resin. Using a system of additives, the Hounsfield unit (HU) values of these materials were tuned to mimic anatomy for both kV and MV imaging. The phantom opens along a sagittal midsection to reveal radiotransparent markers, which were used to characterize the phantom deformation. The deformed and undeformed phantoms were scanned with kV and MV imaging modalities. Additionally, a calibration curve was created to change the HUs of the MV scans to be similar to kV HUs, (MC). The extracted ground‐truth deformation was then compared to the results of two commercially available DIR algorithms, from Velocity Medical Solutions and mim software. Results: The phantom produced a 3D deformation, representing neck flexion, with a magnitude of up to 8 mm and was able to represent tissue HUs for both kV and MV imaging modalities. The two tested deformation algorithms yielded vastly different results. For kV–kV registration, mim produced mean and maximum errors of 1.8 and 11.5 mm, respectively. These same numbers for Velocity were 2.4 and 7.1 mm, respectively. For MV–MV, kV–MV, and kV–MC Velocity produced similar mean and maximum error values. mim , however, produced gross errors for all three of these scenarios, with maximum errors ranging from 33.4 to 41.6 mm. Conclusions: The application of DIR across different imaging modalities is particularly difficult, due to differences in tissue HUs and the presence of imaging artifacts. For this reason, DIR algorithms must be validated specifically for this purpose. The developed H&N phantom is an effective tool for this purpose." @default.
- W2014964802 created "2016-06-24" @default.
- W2014964802 creator A5002220878 @default.
- W2014964802 creator A5038591447 @default.
- W2014964802 creator A5053437190 @default.
- W2014964802 date "2014-11-19" @default.
- W2014964802 modified "2023-10-06" @default.
- W2014964802 title "A three‐dimensional head‐and‐neck phantom for validation of multimodality deformable image registration for adaptive radiotherapy" @default.
- W2014964802 cites W1967396578 @default.
- W2014964802 cites W2002752499 @default.
- W2014964802 cites W2009337118 @default.
- W2014964802 cites W2024556380 @default.
- W2014964802 cites W2039838191 @default.
- W2014964802 cites W2048108701 @default.
- W2014964802 cites W2062365507 @default.
- W2014964802 cites W2069580151 @default.
- W2014964802 cites W2083361336 @default.
- W2014964802 cites W2087643531 @default.
- W2014964802 cites W2093347675 @default.
- W2014964802 cites W2098533585 @default.
- W2014964802 cites W2105156707 @default.
- W2014964802 cites W2136968905 @default.
- W2014964802 cites W2168201175 @default.
- W2014964802 cites W2398137666 @default.
- W2014964802 doi "https://doi.org/10.1118/1.4901523" @default.
- W2014964802 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/25471956" @default.
- W2014964802 hasPublicationYear "2014" @default.
- W2014964802 type Work @default.
- W2014964802 sameAs 2014964802 @default.
- W2014964802 citedByCount "43" @default.
- W2014964802 countsByYear W20149648022014 @default.
- W2014964802 countsByYear W20149648022015 @default.
- W2014964802 countsByYear W20149648022016 @default.
- W2014964802 countsByYear W20149648022017 @default.
- W2014964802 countsByYear W20149648022018 @default.
- W2014964802 countsByYear W20149648022019 @default.
- W2014964802 countsByYear W20149648022020 @default.
- W2014964802 countsByYear W20149648022021 @default.
- W2014964802 countsByYear W20149648022022 @default.
- W2014964802 countsByYear W20149648022023 @default.
- W2014964802 crossrefType "journal-article" @default.
- W2014964802 hasAuthorship W2014964802A5002220878 @default.
- W2014964802 hasAuthorship W2014964802A5038591447 @default.
- W2014964802 hasAuthorship W2014964802A5053437190 @default.
- W2014964802 hasConcept C104293457 @default.
- W2014964802 hasConcept C115961682 @default.
- W2014964802 hasConcept C126838900 @default.
- W2014964802 hasConcept C136229726 @default.
- W2014964802 hasConcept C154945302 @default.
- W2014964802 hasConcept C159985019 @default.
- W2014964802 hasConcept C166704113 @default.
- W2014964802 hasConcept C187954543 @default.
- W2014964802 hasConcept C192562407 @default.
- W2014964802 hasConcept C204366326 @default.
- W2014964802 hasConcept C2989005 @default.
- W2014964802 hasConcept C31601959 @default.
- W2014964802 hasConcept C41008148 @default.
- W2014964802 hasConcept C544519230 @default.
- W2014964802 hasConcept C71924100 @default.
- W2014964802 hasConceptScore W2014964802C104293457 @default.
- W2014964802 hasConceptScore W2014964802C115961682 @default.
- W2014964802 hasConceptScore W2014964802C126838900 @default.
- W2014964802 hasConceptScore W2014964802C136229726 @default.
- W2014964802 hasConceptScore W2014964802C154945302 @default.
- W2014964802 hasConceptScore W2014964802C159985019 @default.
- W2014964802 hasConceptScore W2014964802C166704113 @default.
- W2014964802 hasConceptScore W2014964802C187954543 @default.
- W2014964802 hasConceptScore W2014964802C192562407 @default.
- W2014964802 hasConceptScore W2014964802C204366326 @default.
- W2014964802 hasConceptScore W2014964802C2989005 @default.
- W2014964802 hasConceptScore W2014964802C31601959 @default.
- W2014964802 hasConceptScore W2014964802C41008148 @default.
- W2014964802 hasConceptScore W2014964802C544519230 @default.
- W2014964802 hasConceptScore W2014964802C71924100 @default.
- W2014964802 hasIssue "12" @default.
- W2014964802 hasLocation W20149648021 @default.
- W2014964802 hasLocation W20149648022 @default.
- W2014964802 hasOpenAccess W2014964802 @default.
- W2014964802 hasPrimaryLocation W20149648021 @default.
- W2014964802 hasRelatedWork W1984703219 @default.
- W2014964802 hasRelatedWork W2009769944 @default.
- W2014964802 hasRelatedWork W2012073793 @default.
- W2014964802 hasRelatedWork W2295804706 @default.
- W2014964802 hasRelatedWork W2437385367 @default.
- W2014964802 hasRelatedWork W2465351108 @default.
- W2014964802 hasRelatedWork W2471562626 @default.
- W2014964802 hasRelatedWork W2610932499 @default.
- W2014964802 hasRelatedWork W2758533457 @default.
- W2014964802 hasRelatedWork W2948976102 @default.
- W2014964802 hasVolume "41" @default.
- W2014964802 isParatext "false" @default.
- W2014964802 isRetracted "false" @default.
- W2014964802 magId "2014964802" @default.
- W2014964802 workType "article" @default.