Matches in SemOpenAlex for { <https://semopenalex.org/work/W1965657351> ?p ?o ?g. }
- W1965657351 abstract "Purpose: High dose rate (HDR) brachytherapy is a radiation treatment technique capable of delivering large dose rates to the tumor. Radiation is delivered using remote afterloaders to drive highly active sources (commonly 192 Ir with an air KERMA strength range between 20 000 and 40 000 U, where 1 U = 1 μ Gy m 2 /h in air) through applicators directly into the patientˈs prescribed region of treatment. Due to the obvious ramifications of incorrect treatment while using such an active source, it is essential that there are methods for quality assurance (QA) that can directly and accurately verify the treatment plan and the functionality of the remote afterloader. This paper describes the feasibility study of a QA system for HDR brachytherapy using a phantom based two‐dimensional 11 × 11 epitaxial diode array, named “magic phantom.” Methods: The HDR brachytherapy treatment plan is translated to the phantom with two rows of 10 (20 in total) HDR source flexible catheters, arranged above and below the diode array “magic plate” (MP). Four‐dimensional source tracking in each catheter is based upon a developed fast iterative algorithm, utilizing the response of the diodes in close proximity to the 192 Ir source, sampled at 100 ms intervals by a fast data acquisition (DAQ) system. Using a 192 Ir source in a solid water phantom, the angular response of the developed epitaxial diodes utilized in the MP and also the variation of the MP response as a function of the source‐to‐detector distance (SDD) were investigated. These response data are then used by an iterative algorithm for source dwelling position determination. A measurement of the average transit speed between dwell positions was performed using the diodes and a fast DAQ. Results: The angular response of the epitaxial diode showed a variation of 15% within 360°, with two flat regions above and below the detector face with less than 5% variation. For SDD distances of between 5 and 30 mm the relative response of the epitaxial diodes used in the MP is in good agreement (within 8%) with radial dose function measurements found within the TG‐43 protocol, with SDD of up to 70 mm showing a 40% over response. A method for four‐dimensional localization of the HDR source was developed, allowing the source dwell position to be derived within 0.50 mm of the expected position. An estimation of the average transit speed for varying step sizes was determined and was found to increase from (12.8 ± 0.3) up to (38.6 ± 0.4) cm/s for a step size of 2.5 and 50 mm, respectively. Conclusions: Our characterization of the designed QA “magic phantom” with MP in realistic HDR photon fields demonstrates the promising performance for real‐time source position tracking in four dimensions and measurements of transit times. Further development of this system will allow a full suite for QA in HDR brachytherapy and analysis, and for future in vivo tracking." @default.
- W1965657351 created "2016-06-24" @default.
- W1965657351 creator A5005928966 @default.
- W1965657351 creator A5021832879 @default.
- W1965657351 creator A5039322526 @default.
- W1965657351 creator A5041243413 @default.
- W1965657351 creator A5051072937 @default.
- W1965657351 creator A5063611602 @default.
- W1965657351 creator A5064266739 @default.
- W1965657351 creator A5064533361 @default.
- W1965657351 creator A5070290240 @default.
- W1965657351 creator A5088402277 @default.
- W1965657351 date "2013-10-02" @default.
- W1965657351 modified "2023-10-04" @default.
- W1965657351 title "The feasibility study and characterization of a two-dimensional diode array in “magic phantom” for high dose rate brachytherapy quality assurance" @default.
- W1965657351 cites W1974481918 @default.
- W1965657351 cites W1988392843 @default.
- W1965657351 cites W1990443438 @default.
- W1965657351 cites W1998783773 @default.
- W1965657351 cites W2001161711 @default.
- W1965657351 cites W2005439659 @default.
- W1965657351 cites W2012856497 @default.
- W1965657351 cites W2013239067 @default.
- W1965657351 cites W2048117549 @default.
- W1965657351 cites W2060812491 @default.
- W1965657351 cites W2070381110 @default.
- W1965657351 cites W2079534471 @default.
- W1965657351 cites W2114720888 @default.
- W1965657351 cites W2123249934 @default.
- W1965657351 cites W2123934092 @default.
- W1965657351 cites W2157345813 @default.
- W1965657351 cites W2173466780 @default.
- W1965657351 cites W4236871690 @default.
- W1965657351 doi "https://doi.org/10.1118/1.4822736" @default.
- W1965657351 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/24320410" @default.
- W1965657351 hasPublicationYear "2013" @default.
- W1965657351 type Work @default.
- W1965657351 sameAs 1965657351 @default.
- W1965657351 citedByCount "26" @default.
- W1965657351 countsByYear W19656573512014 @default.
- W1965657351 countsByYear W19656573512015 @default.
- W1965657351 countsByYear W19656573512016 @default.
- W1965657351 countsByYear W19656573512018 @default.
- W1965657351 countsByYear W19656573512019 @default.
- W1965657351 countsByYear W19656573512020 @default.
- W1965657351 countsByYear W19656573512021 @default.
- W1965657351 countsByYear W19656573512022 @default.
- W1965657351 crossrefType "journal-article" @default.
- W1965657351 hasAuthorship W1965657351A5005928966 @default.
- W1965657351 hasAuthorship W1965657351A5021832879 @default.
- W1965657351 hasAuthorship W1965657351A5039322526 @default.
- W1965657351 hasAuthorship W1965657351A5041243413 @default.
- W1965657351 hasAuthorship W1965657351A5051072937 @default.
- W1965657351 hasAuthorship W1965657351A5063611602 @default.
- W1965657351 hasAuthorship W1965657351A5064266739 @default.
- W1965657351 hasAuthorship W1965657351A5064533361 @default.
- W1965657351 hasAuthorship W1965657351A5070290240 @default.
- W1965657351 hasAuthorship W1965657351A5088402277 @default.
- W1965657351 hasConcept C104293457 @default.
- W1965657351 hasConcept C106436119 @default.
- W1965657351 hasConcept C120665830 @default.
- W1965657351 hasConcept C121332964 @default.
- W1965657351 hasConcept C126838900 @default.
- W1965657351 hasConcept C142724271 @default.
- W1965657351 hasConcept C192562407 @default.
- W1965657351 hasConcept C19527891 @default.
- W1965657351 hasConcept C2777416452 @default.
- W1965657351 hasConcept C2778618615 @default.
- W1965657351 hasConcept C2989005 @default.
- W1965657351 hasConcept C41008148 @default.
- W1965657351 hasConcept C49040817 @default.
- W1965657351 hasConcept C509974204 @default.
- W1965657351 hasConcept C71924100 @default.
- W1965657351 hasConcept C75088862 @default.
- W1965657351 hasConcept C78434282 @default.
- W1965657351 hasConceptScore W1965657351C104293457 @default.
- W1965657351 hasConceptScore W1965657351C106436119 @default.
- W1965657351 hasConceptScore W1965657351C120665830 @default.
- W1965657351 hasConceptScore W1965657351C121332964 @default.
- W1965657351 hasConceptScore W1965657351C126838900 @default.
- W1965657351 hasConceptScore W1965657351C142724271 @default.
- W1965657351 hasConceptScore W1965657351C192562407 @default.
- W1965657351 hasConceptScore W1965657351C19527891 @default.
- W1965657351 hasConceptScore W1965657351C2777416452 @default.
- W1965657351 hasConceptScore W1965657351C2778618615 @default.
- W1965657351 hasConceptScore W1965657351C2989005 @default.
- W1965657351 hasConceptScore W1965657351C41008148 @default.
- W1965657351 hasConceptScore W1965657351C49040817 @default.
- W1965657351 hasConceptScore W1965657351C509974204 @default.
- W1965657351 hasConceptScore W1965657351C71924100 @default.
- W1965657351 hasConceptScore W1965657351C75088862 @default.
- W1965657351 hasConceptScore W1965657351C78434282 @default.
- W1965657351 hasIssue "11" @default.
- W1965657351 hasLocation W19656573511 @default.
- W1965657351 hasLocation W19656573512 @default.
- W1965657351 hasOpenAccess W1965657351 @default.
- W1965657351 hasPrimaryLocation W19656573511 @default.
- W1965657351 hasRelatedWork W1794502924 @default.
- W1965657351 hasRelatedWork W2043909905 @default.
- W1965657351 hasRelatedWork W2064183132 @default.