The effect of depth and control point number for MLC transmission and dosimetric leaf gap

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dc.authorid0000-0002-3936-080X
dc.authorwosidQ-6082-2019
dc.contributor.authorKüçükmorkoç, Esra
dc.contributor.authorDoyuran, Mine
dc.contributor.authorÇağlar, Mustafa
dc.contributor.authorKüçük, Nadir
dc.contributor.authorAcar, Hilal
dc.contributor.authorAltınok, Ayşe
dc.contributor.authorÇağlar, Hale
dc.date.accessioned2022-04-12T08:54:47Z
dc.date.available2022-04-12T08:54:47Z
dc.date.issued2015
dc.departmentİstanbul Medipol Üniversitesi, Tıp Fakültesi, Dahili Tıp Bilimleri Bölümü, Radyasyon Onkolojisi Ana Bilim Dalı
dc.description.abstractPurpose/Objective: MLC transmision (MLCT) and dosimetric leaf gap (DLG) in Treatment Planning System (TPS) are important parameters for dose calculation and they provide accuracy of delivering IMRT plans. MLCT and DLG account the leakage of MLC and the effect of rounded leaf ends, respectively. The aim of this study is to examine control point (CP) and depth dependance for MLCT and DLG. Materials and Methods: MLCT and DLG parameters were measured with PTW 0.125 cc semi-flex ionization chember in a solid water phantom for Varian Trilogy machine with Millenium MLC. MLCT measurements were obtained 15x15cm2 field size at different depths (Dmax,5,10 and 15cm) for 6 MV photon beam. To derive the DLG measurement , a series of Sliding Window (SW) fields of 2,4,7,10,15 and 20 mm gap widths were used. These SW fields were prepared with different number of CP (2,3,5,7,9,11,13,16 and 21) and DLG measuremets were performed at same depths and field size. DLG values were calculated for each depth using MLCT parameters which were measured at same depth.
dc.identifier.citationKüçükmorkoç, E., Doyuran, M., Çağlar, M., Küçük, N., Acar, H., Altınok, A. ... Çağlar, H. (2015). The effect of depth and control point number for MLC transmission and dosimetric leaf gap. Radiotherapy and Oncology içinde (S763-S764 ss.). https://doi.org/10.1016/S0167-8140(15)41406-9
dc.identifier.doi10.1016/S0167-8140(15)41406-9
dc.identifier.endpageS764
dc.identifier.issnhttps://doi.org/10.1016/S0167-8140(15)41406-9
dc.identifier.issn0167-8140
dc.identifier.issn1879-0887
dc.identifier.issueSupplement: 1
dc.identifier.startpageS763
dc.identifier.urihttps://hdl.handle.net/20.500.12511/9303
dc.identifier.volume115
dc.identifier.wosWOS:000691062700527en_US
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.institutionauthorKüçükmorkoç, Esra
dc.institutionauthorDoyuran, Mine
dc.institutionauthorÇağlar, Mustafa
dc.institutionauthorKüçük, Nadir
dc.institutionauthorAcar, Hilal
dc.institutionauthorAltınok, Ayşe
dc.institutionauthorÇağlar, Hale
dc.language.isoen
dc.publisherElsevier Ireland Ltd.
dc.relation.ispartofRadiotherapy and Oncologyen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectMLC Transmision (MLCT)
dc.subjectDosimetric Leaf Gap (DLG)
dc.subjectTreatment Planning System (TPS)
dc.titleThe effect of depth and control point number for MLC transmission and dosimetric leaf gap
dc.typeConference Object

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