FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2924202496> ?p ?o ?g. }

• W2924202496 endingPage "109" @default.
• W2924202496 startingPage "109" @default.
• W2924202496 abstract "Introduction: Characterization of the relative electron density (𝜌e) of the body tissues is routinely provided by scanning the commercial phantom like RMI 467 at 120 kilovoltage (kVp) in radiotherapy planning. Recent studies showed that the calibrating Hounsfield Unit–𝜌e curve could be obtained linearly using dual energy computed tomography (DECT) algorithm in commercial phantom like RMI 467. The aim of this study was to produce a more accurate calibrating HU–𝜌e curve by constructing an in- house phantom and applying dual energy algorithm.Materials and Methods: An in-house water filled phantom (33cm diameter) was made including ten water solutions plus composite cork as tissue substitute materials (TSM), and scanned at four kVps by multi-detector four slice CT. The dual energy algorithm was applied to two combination scans (80-140 and 100-140 kVp) and the linear HU–𝜌e curves were produced. The stoichiometric method reproduced the HUs of 31 real body tissues, that their compositions are available in ICRU-46 report. The HU–𝜌e curves for both kVp combination scans were produced. The t-test and compare means were performed between the mean and standard deviation of the relative and absolute differences (%) of the 𝜌e of 31 ICRU real tissues calculated for 120 kVp and both kVp combination scans in the current and previous studies, respectivelyResults: Applying an energy subtraction algorithm mitigated the 𝜌e calculation error of real tissues. The mean and standard deviation of the relative difference between the 𝜌e of 31 ICRU tissues (–0.23±1.89) were statistically significant compared with the mean and standard deviation of the 30 ICRU tissues (0.80±1.58), which extracted from the RMI 467 phantom at120 kVp in previous study (p<0.024). The mean and standard deviation of absolute differences of the calculated 𝜌e of the 31 ICRU tissues at 100-140 kVp combination scans (0.14±0.11) compared to previous study using 100-140kVp scan (0.30±0.40) in a second generation dual source CT, were statistically significant (P<0.035).Conclusion: The stoichiometric calibration method and closeness of the 𝜌e of 11 TSMs can result in statistically significant smaller discrepancies in calculating the 𝜌e of real tissues at120 kVp, compared to the previous studies with RMI 467. The stoichiometric fitting parameters were highly affected by beam hardening artifacts and image noise, especially at 80 kVp. Applying the energy subtraction algorithm can offer further error mitigation in 𝜌e calculation of real tissues by spectral separation and reduction of beam hardening artifacts and noise in two kVp combination scans compared to previous studies. Therefore, a dual energy algorithm in combination with stoichiometry can be used to decrease errors in calculation of the 𝜌e of real tissues, and could be used for radiotherapy planning and material differentiation in clinical practice." @default.
• W2924202496 created "2019-04-01" @default.
• W2924202496 creator A5006783985 @default.
• W2924202496 creator A5029068094 @default.
• W2924202496 creator A5073053021 @default.
• W2924202496 creator A5080482237 @default.
• W2924202496 creator A5081517787 @default.
• W2924202496 date "2018-12-01" @default.
• W2924202496 modified "2023-09-27" @default.
• W2924202496 title "Characterization of electron density of the real tissues for radiotherapy planning using dual energy algorithm and stoichiometric calibration method" @default.
• W2924202496 doi "https://doi.org/10.22038/ijmp.2018.12438" @default.
• W2924202496 hasPublicationYear "2018" @default.
• W2924202496 type Work @default.
• W2924202496 sameAs 2924202496 @default.
• W2924202496 citedByCount "0" @default.
• W2924202496 crossrefType "journal-article" @default.
• W2924202496 hasAuthorship W2924202496A5006783985 @default.
• W2924202496 hasAuthorship W2924202496A5029068094 @default.
• W2924202496 hasAuthorship W2924202496A5073053021 @default.
• W2924202496 hasAuthorship W2924202496A5080482237 @default.
• W2924202496 hasAuthorship W2924202496A5081517787 @default.
• W2924202496 hasConcept C104293457 @default.
• W2924202496 hasConcept C105795698 @default.
• W2924202496 hasConcept C11413529 @default.
• W2924202496 hasConcept C119128265 @default.
• W2924202496 hasConcept C121332964 @default.
• W2924202496 hasConcept C126838900 @default.
• W2924202496 hasConcept C134018914 @default.
• W2924202496 hasConcept C165838908 @default.
• W2924202496 hasConcept C187954543 @default.
• W2924202496 hasConcept C192562407 @default.
• W2924202496 hasConcept C22679943 @default.
• W2924202496 hasConcept C23531484 @default.
• W2924202496 hasConcept C2776541429 @default.
• W2924202496 hasConcept C2776886416 @default.
• W2924202496 hasConcept C2989005 @default.
• W2924202496 hasConcept C2994545362 @default.
• W2924202496 hasConcept C33923547 @default.
• W2924202496 hasConcept C544519230 @default.
• W2924202496 hasConcept C71924100 @default.
• W2924202496 hasConceptScore W2924202496C104293457 @default.
• W2924202496 hasConceptScore W2924202496C105795698 @default.
• W2924202496 hasConceptScore W2924202496C11413529 @default.
• W2924202496 hasConceptScore W2924202496C119128265 @default.
• W2924202496 hasConceptScore W2924202496C121332964 @default.
• W2924202496 hasConceptScore W2924202496C126838900 @default.
• W2924202496 hasConceptScore W2924202496C134018914 @default.
• W2924202496 hasConceptScore W2924202496C165838908 @default.
• W2924202496 hasConceptScore W2924202496C187954543 @default.
• W2924202496 hasConceptScore W2924202496C192562407 @default.
• W2924202496 hasConceptScore W2924202496C22679943 @default.
• W2924202496 hasConceptScore W2924202496C23531484 @default.
• W2924202496 hasConceptScore W2924202496C2776541429 @default.
• W2924202496 hasConceptScore W2924202496C2776886416 @default.
• W2924202496 hasConceptScore W2924202496C2989005 @default.
• W2924202496 hasConceptScore W2924202496C2994545362 @default.
• W2924202496 hasConceptScore W2924202496C33923547 @default.
• W2924202496 hasConceptScore W2924202496C544519230 @default.
• W2924202496 hasConceptScore W2924202496C71924100 @default.
• W2924202496 hasLocation W29242024961 @default.
• W2924202496 hasOpenAccess W2924202496 @default.
• W2924202496 hasPrimaryLocation W29242024961 @default.
• W2924202496 hasRelatedWork W1168013170 @default.
• W2924202496 hasRelatedWork W2012073793 @default.
• W2924202496 hasRelatedWork W2012910897 @default.
• W2924202496 hasRelatedWork W2019403375 @default.
• W2924202496 hasRelatedWork W2035126433 @default.
• W2924202496 hasRelatedWork W2036099772 @default.
• W2924202496 hasRelatedWork W2061268333 @default.
• W2924202496 hasRelatedWork W2074532744 @default.
• W2924202496 hasRelatedWork W2216191610 @default.
• W2924202496 hasRelatedWork W2470811559 @default.
• W2924202496 hasRelatedWork W2534831478 @default.
• W2924202496 hasRelatedWork W2599050585 @default.
• W2924202496 hasRelatedWork W2611842555 @default.
• W2924202496 hasRelatedWork W2825066182 @default.
• W2924202496 hasRelatedWork W2910834791 @default.
• W2924202496 hasRelatedWork W2952560177 @default.
• W2924202496 hasRelatedWork W3088998676 @default.
• W2924202496 hasRelatedWork W3119116557 @default.
• W2924202496 hasRelatedWork W3185595217 @default.
• W2924202496 hasRelatedWork W3185738592 @default.
• W2924202496 hasVolume "15" @default.
• W2924202496 isParatext "false" @default.
• W2924202496 isRetracted "false" @default.
• W2924202496 magId "2924202496" @default.
• W2924202496 workType "article" @default.