Effect of Multileaf Collimator Leaf Position Error Determined by Picket Fence Test on Gamma Index Value in Patient-Specific Quality Assurance of Volumetric-Modulated Arc Therapy Plans

dc.authorwosid Sahin, Sevim/ACU-4827-2022
dc.authorwosid ceylan, cemile/KLE-2854-2024
dc.contributor.author Şahin, Sevim
dc.contributor.author Inal, Serpil Yondem
dc.contributor.author Senol, Elif
dc.contributor.author Yilmaz, Berrin
dc.contributor.author Sahin, Sevim
dc.contributor.other Elektrik-elektronik Mühendisliği Bölümü
dc.date.accessioned 2025-01-11T13:01:52Z
dc.date.available 2025-01-11T13:01:52Z
dc.date.issued 2021
dc.department Fenerbahçe University en_US
dc.department-temp [Ceylan, Cemile; Yilmaz, Berrin] Istanbul Oncol Hosp, Radiat Oncol Dept, Istanbul, Turkey; [Ceylan, Cemile] Yeditepe Univ, Hlth Sci Inst, Istanbul, Turkey; [Inal, Serpil Yondem; Senol, Elif] Mem Bahcelievler Hosp, Radiat Oncol Dept, Istanbul, Turkey; [Sahin, Sevim] Fenerbahce Univ, Med Imaging Dept, Istanbul, Turkey en_US
dc.description.abstract Aim The correlation between the MLC QA (IBA Dosimetry, Germany) results of the picket fence test created with intentional errors and the patient's quality assurance (QA) evaluation was investigated to assess the impact of multileaf collimator (MLC) positioning error on patient QA. Materials and methods The picket fence, including error-free and intentional MLC errors, defined in Bank In, Bank Out, and Bank Both were analyzed using MLC QA. The QA of 15 plans consisting of stereotactic radiosurgery (SRS), stereotactic body radiotherapy (SBRT), and conventionally fractionated volumetric-modulated arc therapy (VMAT) acquired with electronic portal imaging devices (EPID) was evaluated in the presence of error-free and MLC errors. The QA of plans were analyzed with 2%/2 mm and 3%/3 mm criteria. Results The passing rates of the picket fence test were 97%, 92%, 91%, and 87% for error-free and intentional errors. The criterion of 3%/3 mm wasn't able to detect an MLC error for either SRS/SBRT or conventionally fractionated VMAT. The criterion of 2%/2mm was more sensitive to detect MLC error for the conventionally fractionated VMAT than SRS/SBRT. While only two of SBRT plans had <90%, four of conventionally fractionated VMAT plans had a <90% passing rate. Conclusion We found that the systematic MLC positioning errors defined with picket fence have a smaller but measurable impact on SRS/SBRT than the VMAT plan for a conventionally fractionated and relatively complex plan such as head and neck and endometrium cases. en_US
dc.description.woscitationindex Emerging Sources Citation Index
dc.identifier.citation 2
dc.identifier.doi 10.7759/cureus.12684
dc.identifier.issn 2168-8184
dc.identifier.issue 1 en_US
dc.identifier.pmid 33598374
dc.identifier.scopusquality N/A
dc.identifier.uri https://doi.org/10.7759/cureus.12684
dc.identifier.uri https://hdl.handle.net/20.500.14627/189
dc.identifier.volume 13 en_US
dc.identifier.wos WOS:000608050100014
dc.language.iso en en_US
dc.publisher Springernature en_US
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı en_US
dc.rights info:eu-repo/semantics/openAccess en_US
dc.subject Mlc Error en_US
dc.subject Patient-Specific Quality Assurance en_US
dc.subject Gamma-Index Evaluation en_US
dc.title Effect of Multileaf Collimator Leaf Position Error Determined by Picket Fence Test on Gamma Index Value in Patient-Specific Quality Assurance of Volumetric-Modulated Arc Therapy Plans en_US
dc.type Article en_US
dc.wos.citedbyCount 3
dspace.entity.type Publication
relation.isAuthorOfPublication 137b9c99-3632-425b-a3e8-9dace6596145
relation.isAuthorOfPublication.latestForDiscovery 137b9c99-3632-425b-a3e8-9dace6596145
relation.isOrgUnitOfPublication 573efe9a-4585-4e9f-9d6e-4231d0e477bb
relation.isOrgUnitOfPublication.latestForDiscovery 573efe9a-4585-4e9f-9d6e-4231d0e477bb

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