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Analysis of random and systematic errors in three dimensional conformal radiation therapy - a study at National Cancer Institute, Maharagama

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dc.contributor.author Thasanthan, L
dc.contributor.author Croos, AMC
dc.contributor.author Piyasena, WRO
dc.date.accessioned 2018-05-28T11:35:41Z
dc.date.available 2018-05-28T11:35:41Z
dc.date.issued 2013
dc.identifier.uri http://ir.kdu.ac.lk/handle/345/1446
dc.description article full text en_US
dc.description.abstract The aim of this study was to assess three dimensional set-up errors for three dimensional conformal radiation therapy (3-DCRT) at National Cancer Institute,Maharagama (NCIM). This study included 50 patients from each head and neck, brain and pelvic cases and 300 Portal images. Set-up errors were obtained by comparing Digitally reconstructed radiographs (DRR) and Electronic portal imaging device (EPID) images. The mean displacements for all images were compared using Kruskal-Wallis test analysis with the threshold ? = 0.05 which indicated significant differences within the major three axes. (Brain-p< 0.0001,Head and Neck-p= 0.001, pelvic-p< 0.0001). The values of portal verification for brain, head and neck and pelvic cases are within boundaries which are 88%, 83% and 78% respectively. The set-up margins were within tolerance for all three cases in all directions. en_US
dc.language.iso en en_US
dc.subject three dimensional conformal radiation therapy en_US
dc.subject setup errors en_US
dc.subject digitally reconstructed radiographs en_US
dc.subject electronic portal images en_US
dc.title Analysis of random and systematic errors in three dimensional conformal radiation therapy - a study at National Cancer Institute, Maharagama en_US
dc.type Article Full Text en_US
dcterms.bibliographicCitation Thasanthan, L., Croos, A., & Piyasena, W. (2013). Analysis of random and systematic errors in three dimensional conformal radiation therapy - a study at National Cancer Institute, Maharagama. In KDU International Research Symposium Proceedings (pp. 158–161). General Sir John Kotelawala Defence University. https://doi.org/http://ir.kdu.ac.lk/handle/345/1446
dc.identifier.pgnos 158-161 en_US


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