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Comprehensive clinical evaluation of TomoEQA for patient-specific pre-treatment quality assurance in helical tomotherapy

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dc.contributor.author김진성-
dc.contributor.author김호진-
dc.contributor.author한민철-
dc.date.accessioned2022-12-22T05:13:27Z-
dc.date.available2022-12-22T05:13:27Z-
dc.date.issued2022-11-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/192334-
dc.description.abstractBackground: Based on a previous study on the feasibility of TomoEQA, an exit detector-based patient-specific pre-treatment quality assurance (QA) method for helical tomotherapy, an in-depth clinical evaluation was conducted. Methods: Data of one hundred patients were analyzed to evaluate the clinical usefulness of TomoEQA for patient-specific pre-treatment QA in comparison with the conventional phantom-based method. Additional investigations were also performed under unusual measurement conditions to validate the off-axis region. In addition to the clinical evaluation of TomoEQA, a statistical analysis was conducted to determine the plan parameters that affect the pass/failure results of pre-treatment QA. Results: The average and standard deviations of the gamma passing rate and point dose error for TomoEQA were comparable to those of the conventional QA method. For TomoEQA, the average values of the gamma passing rate and point dose error were 96.32% (standard deviation (1 sigma) = 3.94; 95% confidence interval (CI), 95.55 to 97.09) and - 1.12% (standard deviation (1 sigma) = 1.04; CI, - 1.32 to - 0.92), respectively. For the conventional QA method, the average values of the gamma passing rate and point dose error were 95.95% (standard deviation (1 sigma) = 4.35; 95% confidence interval (CI), 95.10 to 96.80) and - 1.20% (standard deviation (1 sigma) = 1.61; CI, - 1.52 to - 0.88), respectively. Further experiments on the off-axis region demonstrated that TomoEQA can provide accurate results for 3D dose analysis, which is inherently difficult in the conventional QA method. Through a statistical analysis based on the results of TomoEQA, it was validated that the total fraction (Total Fx), monitor units, beam-on-time, leaf-of-time below 100 ms, and planning target volume diameter were statistically significant for the pass/failure of the pre-treatment QA results. Conclusions: TomoEQA is a clinically beneficial alternative to the conventional phantom-based QA method.-
dc.description.statementOfResponsibilityopen-
dc.languageEnglish-
dc.publisherBioMed Central-
dc.relation.isPartOfRADIATION ONCOLOGY-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.subject.MESHGamma Rays-
dc.subject.MESHHumans-
dc.subject.MESHPhantoms, Imaging-
dc.subject.MESHQuality Assurance, Health Care-
dc.subject.MESHRadiotherapy Dosage-
dc.subject.MESHRadiotherapy Planning, Computer-Assisted / methods-
dc.subject.MESHRadiotherapy, Intensity-Modulated* / methods-
dc.titleComprehensive clinical evaluation of TomoEQA for patient-specific pre-treatment quality assurance in helical tomotherapy-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Radiation Oncology (방사선종양학교실)-
dc.contributor.googleauthorChanghwan Kim-
dc.contributor.googleauthorMin Cheol Han-
dc.contributor.googleauthorYoung Kyu Lee-
dc.contributor.googleauthorHan-Back Shin-
dc.contributor.googleauthorHojin Kim-
dc.contributor.googleauthorJin Sung Kim-
dc.identifier.doi10.1186/s13014-022-02151-x-
dc.contributor.localIdA04548-
dc.contributor.localIdA05970-
dc.contributor.localIdA05870-
dc.relation.journalcodeJ02591-
dc.identifier.eissn1748-717X-
dc.identifier.pmid36344983-
dc.subject.keywordExit detector-
dc.subject.keywordHelical tomotherapy-
dc.subject.keywordPatient-specific pre-treatment quality assurance-
dc.contributor.alternativeNameKim, Jinsung-
dc.contributor.affiliatedAuthor김진성-
dc.contributor.affiliatedAuthor김호진-
dc.contributor.affiliatedAuthor한민철-
dc.citation.volume17-
dc.citation.number1-
dc.citation.startPage177-
dc.identifier.bibliographicCitationRADIATION ONCOLOGY, Vol.17(1) : 177, 2022-11-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers

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