Matches in SemOpenAlex for { <https://semopenalex.org/work/W2075291277> ?p ?o ?g. }
Showing items 1 to 82 of
82
with 100 items per page.
- W2075291277 endingPage "460" @default.
- W2075291277 startingPage "460" @default.
- W2075291277 abstract "Purpose: To calculate patient dose distributions from kV-cone beam CT (CBCT) for image-guided radiation therapy (IGRT) with the Monte Carlo (MC) method and to evaluate quantitatively organ doses from dose-volume histograms (DVHs). Methods: The Varian On-Board Imager (OBI) and the Elekta X-ray Volumetric Imager (XVI) systems were modeled using the EGSnrc/BEAMnrc cord system. MC-calculated doses for both kV-CBCT were calibrated by converting ion chamber readings measured using a CT water phantom into absolute doses. The chamber measurements were performed by a Farmer chamber with 60Co absorbed dose-to-water calibration factor. Then MC-dose distributions for kV-CBCT were calculated using patient CT images. In this study, the organ doses of pelvis and head were evaluated from DVHs obtained by the MC-dose distributions. The beam setting for the pelvis with full scan of 360o was 125 kV and 680 mAs with a half-bowtie filter for OBI, and 120 kV and 1056 mAs with a full-bowtie filter for XVI. For the head with half scan of 200o, the beam setting was 100 kV and 145 mAs with a full-bowtie filter for OBI, and 100 kV and 73.2 mAs without the bowtie filter for XVI. Results: The calculated mean doses for prostate, rectum, and bladder for OBI and XVI were 2.6 and 0.9 cGy, 2.6 and 0.9 cGy, 3.1 and 1.0 cGy, respectively. The absorbed dose in pelvis for OBI was three times higher than XVI. Similarly, mean doses for eye lens, brain stem, and spinal code for OBI and XVI were 0.08 and 0.02 cGy, 0.34 and 0.12 cGy, 0.19 and 0.15 cGy, respectively. The dose for bone increased up to three or four times compared to that of soft tissue. Conclusion: Monte Carlo-calculated dose distributions are useful to evaluate quantitatively patient doses from kV-CBCT for IGRT." @default.
- W2075291277 created "2016-06-24" @default.
- W2075291277 creator A5000609519 @default.
- W2075291277 creator A5015212394 @default.
- W2075291277 creator A5030091429 @default.
- W2075291277 creator A5042355125 @default.
- W2075291277 creator A5081093127 @default.
- W2075291277 date "2013-06-01" @default.
- W2075291277 modified "2023-10-16" @default.
- W2075291277 title "TU-G-103-08: Monte Carlo-Calculated Patient Dose Distributions From KV-Cone Beam CT for IGRT" @default.
- W2075291277 doi "https://doi.org/10.1118/1.4815477" @default.
- W2075291277 hasPublicationYear "2013" @default.
- W2075291277 type Work @default.
- W2075291277 sameAs 2075291277 @default.
- W2075291277 citedByCount "0" @default.
- W2075291277 crossrefType "journal-article" @default.
- W2075291277 hasAuthorship W2075291277A5000609519 @default.
- W2075291277 hasAuthorship W2075291277A5015212394 @default.
- W2075291277 hasAuthorship W2075291277A5030091429 @default.
- W2075291277 hasAuthorship W2075291277A5042355125 @default.
- W2075291277 hasAuthorship W2075291277A5081093127 @default.
- W2075291277 hasConcept C104293457 @default.
- W2075291277 hasConcept C105795698 @default.
- W2075291277 hasConcept C120665830 @default.
- W2075291277 hasConcept C121332964 @default.
- W2075291277 hasConcept C126838900 @default.
- W2075291277 hasConcept C145148216 @default.
- W2075291277 hasConcept C151770136 @default.
- W2075291277 hasConcept C168834538 @default.
- W2075291277 hasConcept C192562407 @default.
- W2075291277 hasConcept C19499675 @default.
- W2075291277 hasConcept C198291218 @default.
- W2075291277 hasConcept C2779813781 @default.
- W2075291277 hasConcept C2989005 @default.
- W2075291277 hasConcept C33923547 @default.
- W2075291277 hasConcept C509974204 @default.
- W2075291277 hasConcept C544519230 @default.
- W2075291277 hasConcept C62520636 @default.
- W2075291277 hasConcept C71924100 @default.
- W2075291277 hasConcept C75088862 @default.
- W2075291277 hasConcept C9267231 @default.
- W2075291277 hasConceptScore W2075291277C104293457 @default.
- W2075291277 hasConceptScore W2075291277C105795698 @default.
- W2075291277 hasConceptScore W2075291277C120665830 @default.
- W2075291277 hasConceptScore W2075291277C121332964 @default.
- W2075291277 hasConceptScore W2075291277C126838900 @default.
- W2075291277 hasConceptScore W2075291277C145148216 @default.
- W2075291277 hasConceptScore W2075291277C151770136 @default.
- W2075291277 hasConceptScore W2075291277C168834538 @default.
- W2075291277 hasConceptScore W2075291277C192562407 @default.
- W2075291277 hasConceptScore W2075291277C19499675 @default.
- W2075291277 hasConceptScore W2075291277C198291218 @default.
- W2075291277 hasConceptScore W2075291277C2779813781 @default.
- W2075291277 hasConceptScore W2075291277C2989005 @default.
- W2075291277 hasConceptScore W2075291277C33923547 @default.
- W2075291277 hasConceptScore W2075291277C509974204 @default.
- W2075291277 hasConceptScore W2075291277C544519230 @default.
- W2075291277 hasConceptScore W2075291277C62520636 @default.
- W2075291277 hasConceptScore W2075291277C71924100 @default.
- W2075291277 hasConceptScore W2075291277C75088862 @default.
- W2075291277 hasConceptScore W2075291277C9267231 @default.
- W2075291277 hasIssue "6Part27" @default.
- W2075291277 hasLocation W20752912771 @default.
- W2075291277 hasOpenAccess W2075291277 @default.
- W2075291277 hasPrimaryLocation W20752912771 @default.
- W2075291277 hasRelatedWork W135747029 @default.
- W2075291277 hasRelatedWork W1974797338 @default.
- W2075291277 hasRelatedWork W1979773307 @default.
- W2075291277 hasRelatedWork W2025656351 @default.
- W2075291277 hasRelatedWork W2027014302 @default.
- W2075291277 hasRelatedWork W2068265897 @default.
- W2075291277 hasRelatedWork W2087812226 @default.
- W2075291277 hasRelatedWork W2152733288 @default.
- W2075291277 hasRelatedWork W2161974052 @default.
- W2075291277 hasRelatedWork W2166034245 @default.
- W2075291277 hasVolume "40" @default.
- W2075291277 isParatext "false" @default.
- W2075291277 isRetracted "false" @default.
- W2075291277 magId "2075291277" @default.
- W2075291277 workType "article" @default.