https://m2.mtmt.hu/ hun 2026-10-22 23:06 JournalArticle 36074233 VALIDATED true Center of Radiotherapy, National Institute of Oncology, Budapest, Hungary Doctoral School of Physical Sciences, Budapest University of Technology and Economics, Budapest, Hungary Doctoral School, Semmelweis University, Budapest, Hungary Institute of Nuclear Techniques, Budapest University of Technology and Economics, Budapest, Hungary Department of Oncology, Semmelweis University, Budapest, Hungary Department of Molecular Immunology and Toxicology, The National Tumor Biology Laboratory, National Institute of Oncology, Budapest, Hungary Export Date: 21 July 2025; Cited By: 0; Correspondence Address: S. Gazdag-Hegyesi; Center of Radiotherapy, National Institute of Oncology, Hungary; email: hegyesi.szilvia@oncol.hu; CODEN: RPORA 0 false 2026-10-09T12:27:07.485+0000 2025-12-24T18:50:01.241+0000 2025-04-04T08:17:15.000+0000 true 10072271 Andódy Katalin /api/admin/10072271 Admin true 2025-12-24T18:50:01.013+0000 2025-12-24T18:50:01.197+0000 true 521 Szuper Admin /api/admin/521 Admin true true false true 24 24 /api/publicationtype/24 PublicationType 1 true 24 JournalArticle true 10000059 Article true 24 24 /api/publicationtype/24 PublicationType 1 true 24 JournalArticle /api/subtype/10000059 Szakcikk SubType 101 true 10000059 true 1 /api/category/1 Category true 1 Gazdag-Hegyesi, Szilvia Investigation of the beam width and profile of kilovoltage CBCT using different measurement techniques and analysis of the dosimetric effects of beam parameters true true /api/journal/10004858 REVIEWED true false 10004858 false 10004858 true 1507-1367 2083-4640 Journal FOREIGN 30 1 79 87 79 9 2025 Background: The aim of this study is to investigate the beam width and beam profile of kilovoltage cone beam computed tomography (kV CBCT) using different measurement techniques on an O-ring linear accelerator. The effect of the imaging beam on the dosimetric parameters was analysed. Materials and methods: The uncertainty of field size adjustment, the dependence of beam width on field size, and the effect of deflection from the isocenter on the beam profile were investigated by ionization chamber detector matrices. The 2D beam profile of the CBCT was analysed by relative ionization chamber measurements. Results: The average setup uncertainties of the field sizes were 0.3 mm ± 0.02 mm. The dependence of beam width on field size investigation revealed that the largest discrepancies occurred for small field sizes, which are important in determining computed tomography dose index (CTDI) values of the kV CBCT. The beam width deviation between measured and vendor-based data was larger than 1 mm below 40 mm field of view. The pelvis protocol demonstrated the smallest CTDI value difference of 2.3%, yet presented the largest effective dose deviation of 0.12 mSv. Conclusions: The measured CTDI coefficients were higher than predicted by the manufacturer for all cases. The currently internationally recommended CTDI measurement protocols for CBCT contain no reference to the determination of the beam width as a basic element of the calculations. Based on our measurement results, the beam width parameters affect CTDI: therefore, it would be advisable to apply this type of correction. © 2025 Greater Poland Cancer Centre. Funding 2051816 /api/funding/2051816 false true true true INTERNATIONAL 2025 true true true false true false GOLD 2026-10-09 true https://doi.org/10.5603/rpor.104733 1 0 1 0 1 1 1 0 1 1 1 0 0 0 1 0 1 0 1 0 0 3 3 Folyóiratcikk Journal Article 24 1 Könyvrészlet Chapter in Book 25 0 Könyv Book 23 0 Egyéb konferenciaközlemény Conference paper 31 0 Egyéb konferenciakötet Conference proceedings 32 0 Oltalmi formák Protection forms 26 0 Disszertáció Thesis 28 0 Egyéb Miscellaneous 29 0 Alkotás Achievement 22 0 Kutatási adat Research data 33 0 Folyóiratcikk Journal Article 24 0 0 0 Könyvrészlet Chapter in Book 25 0 0 0 Könyv Book 23 0 0 0 Egyéb konferenciaközlemény Conference paper 31 0 0 0 Egyéb konferenciakötet Conference proceedings 32 0 0 0 Oltalmi formák Protection forms 26 0 0 0 Disszertáció Thesis 28 0 0 0 Egyéb Miscellaneous 29 0 0 0 Alkotás Achievement 22 0 0 0 Kutatási adat Research data 33 0 0 0 2026 0 1 0 1 0 Q2 false false false false 2025-04-09T10:24:33.438+0000 Doktori Iskola (SE); Fizikai Tudományok Doktori Iskola (BME / EHBDT); Nukleáris Technika Tanszék (BME / TTK / NTI); Onkológiai Tanszék (SE / AOK / K); Országos Onkológiai Intézet 7 19 5 7 0 true Language 10002 /api/language/10002 Angol English true 2 true PersonAuthorship 126058018 /api/authorship/126058018 1 0.143 true false true Author 10083674 /api/author/10083674 Gazdag-Hegyesi Szilvia true true Gazdag-Hegyesi Szilvia true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false true PersonAuthorship 126058019 /api/authorship/126058019 2 0.143 false false false Author 10083670 /api/author/10083670 Gáldi Ádám true true Gáldi Ádám true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false true PersonAuthorship 126058020 /api/authorship/126058020 3 0.143 false false false Author 10085430 /api/author/10085430 Koszta Enikő true true Koszta Enikő true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false true PersonAuthorship 126058021 /api/authorship/126058021 4 0.143 false false false Author 10042823 /api/author/10042823 Stelczer Gábor true 10042823 true Stelczer Gábor true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false true PersonAuthorship 126058022 /api/authorship/126058022 5 0.143 false false false Author 10075032 /api/author/10075032 Szegedi Domonkos true true Szegedi Domonkos true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false true PersonAuthorship 126058023 /api/authorship/126058023 6 0.143 false false false Author 10044386 /api/author/10044386 Major Tibor true 10044386 true Major Tibor true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false true PersonAuthorship 126058024 /api/authorship/126058024 7 0.143 false true false Author 10018107 /api/author/10018107 Pesznyák Csilla true 10018107 true Pesznyák Csilla true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false true PublicationIdentifier 29196768 /api/publicationidentifier/29196768 PlainSource 6 /api/publicationsource/6 PublicationSourceType 10001 /api/publicationsourcetype/10001 true true true DOI DOI https://doi.org/@@@ true true 6 true GOLD true IDENTICAL 10.5603/rpor.104733 https://doi.org/10.5603/rpor.104733 false true PublicationIdentifier 29223414 /api/publicationidentifier/29223414 PlainSource 1 /api/publicationsource/1 PublicationSourceType 10003 /api/publicationsourcetype/10003 false true true WoS WoS https://www.webofscience.com/wos/woscc/full-record/@@@ true true 1 true IDENTICAL 001454637200001 https://www.webofscience.com/wos/woscc/full-record/001454637200001 false true PublicationIdentifier 29196767 /api/publicationidentifier/29196767 PlainSource 3 /api/publicationsource/3 PublicationSourceType 10003 /api/publicationsourcetype/10003 false true true Scopus Scopus http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-@@@ true true 3 true IDENTICAL 105000689417 http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-105000689417 false true PublicationIdentifier 29262238 /api/publicationidentifier/29262238 PlainSource 17 /api/publicationsource/17 PublicationSourceType 10003 /api/publicationsourcetype/10003 false true true PubMed PubMed http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=@@@&dopt=Abstract true true 17 true IDENTICAL 40242415 http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=40242415&dopt=Abstract false true Classification 12306 /api/classification/12306 true true Classification 12262 /api/classification/12262 true true Keyword 19309 /api/keyword/19309 true 19309 true Keyword 1245085 /api/keyword/1245085 true 1245085 true Keyword 1528919 /api/keyword/1528919 true true Keyword 2781847 /api/keyword/2781847 true true Keyword 3077559 /api/keyword/3077559 true true SjrRating 11618807 /api/sjrrating/11618807 156 0.49 journal RatingType 10002 /api/ratingtype/10002 sjr true true ClassificationExternal 2741 /api/classificationexternal/2741 true 2741 true Q2 DIRECT true true /api/publication/36074233 <div class="JournalArticle Publication long-list"> <div class="authors"> <img title="Forrásközlemény" style="float: left" src="/frontend/resources/grid/publication-core-icon.png"> <img title="Idézőközlemény" style="float: left" src="/frontend/resources/grid/publication-citation-icon.png"> <div class="autype autype0"> <span class="author-name" mtid="10083674"><a href="/gui2/?type=authors&mode=browse&sel=10083674" target="_blank">Gazdag-Hegyesi Szilvia ✉ (<span class="authorship-author-name">Gazdag-Hegyesi Szilvia</span> <span class="authorAux-mtmt"> Orvosfizika</span>) </a> </span> <span class="author-affil">Országos Onkológiai Intézet; <span title="Budapesti Műszaki és Gazdaságtudományi Egyetem">BME</span>/<span title="Egyetemi Habilitációs Bizottság és Doktori Tanács">EHBDT</span>/Fizikai Tudományok Doktori Iskola</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10083670"><a href="/gui2/?type=authors&mode=browse&sel=10083670" target="_blank">Gáldi Ádám (<span class="authorship-author-name">Gáldi Ádám</span> <span class="authorAux-mtmt"> Orvos fizika</span>) </a> </span> <span class="author-affil">Országos Onkológiai Intézet; <span title="Semmelweis Egyetem">SE</span>/Doktori Iskola</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10085430"><a href="/gui2/?type=authors&mode=browse&sel=10085430" target="_blank">Koszta Enikő (<span class="authorship-author-name">Koszta Enikő</span> <span class="authorAux-mtmt"> orvosi fizikus</span>) </a> </span> <span class="author-affil">Országos Onkológiai Intézet</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10042823"><a href="/gui2/?type=authors&mode=browse&sel=10042823" target="_blank">Stelczer Gábor (<span class="authorship-author-name">Stelczer Gábor</span> <span class="authorAux-mtmt"> Orvosfizika</span>) </a> </span> <span class="author-affil">Országos Onkológiai Intézet; <span title="Budapesti Műszaki és Gazdaságtudományi Egyetem">BME</span>/<span title="Természettudományi Kar">TTK</span>/<span title="Nukleáris Technikai Intézet">NTI</span>/Nukleáris Technika Tanszék</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10075032"><a href="/gui2/?type=authors&mode=browse&sel=10075032" target="_blank">Szegedi Domonkos (<span class="authorship-author-name">Szegedi Domonkos</span> <span class="authorAux-mtmt"> orvosi fizikus</span>) </a> </span> <span class="author-affil">Országos Onkológiai Intézet; <span title="Budapesti Műszaki és Gazdaságtudományi Egyetem">BME</span>/<span title="Egyetemi Habilitációs Bizottság és Doktori Tanács">EHBDT</span>/Fizikai Tudományok Doktori Iskola</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10044386"><a href="/gui2/?type=authors&mode=browse&sel=10044386" target="_blank">Major Tibor (<span class="authorship-author-name">Major Tibor</span> <span class="authorAux-mtmt"> klinikai sugárfizika</span>) </a> </span> <span class="author-affil">Országos Onkológiai Intézet; <span title="Semmelweis Egyetem">SE</span>/<span title="Általános Orvostudományi Kar">AOK</span>/<span title="Klinikum">K</span>/Onkológiai Tanszék</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10018107"><a href="/gui2/?type=authors&mode=browse&sel=10018107" target="_blank">Pesznyák Csilla (<span class="authorship-author-name">Pesznyák Csilla</span> <span class="authorAux-mtmt"> Orvosfizika</span>) </a> </span> <span class="author-affil">Országos Onkológiai Intézet; <span title="Budapesti Műszaki és Gazdaságtudományi Egyetem">BME</span>/<span title="Természettudományi Kar">TTK</span>/<span title="Nukleáris Technikai Intézet">NTI</span>/Nukleáris Technika Tanszék</span> </div> </div> <div class="title"><a href="/gui2/?mode=browse&params=publication;36074233" target="_blank">Investigation of the beam width and profile of kilovoltage CBCT using different measurement techniques and analysis of the dosimetric effects of beam parameters</a></div> <div> <span class="journal-title">REPORTS OF PRACTICAL ONCOLOGY AND RADIOTHERAPY</span> <span class="journal-issn">(<a target="_blank" href="https://portal.issn.org/resource/ISSN/1507-1367">1507-1367</a> <a target="_blank" href="https://portal.issn.org/resource/ISSN/2083-4640">2083-4640</a>)</span>: <span class="journal-volume">30</span> <span class="journal-issue">1</span> <span class="page"> pp 79-87 </span> <span class="year">(2025)</span> </div> <div class="pub-footer"> <span class="language" xmlns="http://www.w3.org/1999/html">Nyelv: Angol | </span> <span class="identifiers"> <span class="id identifier oa_GOLD" title=" Gold "> <a style="color:blue" title="10.5603/rpor.104733" target="_blank" href="https://doi.org/10.5603/rpor.104733"> DOI </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="001454637200001" target="_blank" href="https://www.webofscience.com/wos/woscc/full-record/001454637200001"> WoS </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="105000689417" target="_blank" href="http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-105000689417"> Scopus </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="40242415" target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=40242415&dopt=Abstract"> PubMed </a> </span> </span> <OnlyViewableByAuthor><div class="ratings"> <div class="journal-subject">Folyóirat szakterülete: Scopus - Radiology, Nuclear Medicine and Imaging&nbsp;&nbsp;&nbsp;SJR indikátor:&nbsp;Q2</div> <div class="journal-subject">Folyóirat szakterülete: Scopus - Oncology&nbsp;&nbsp;&nbsp;SJR indikátor:&nbsp;Q3</div> <div class="journal-subject">Folyóirat szakterülete: Scopus - Cancer Research&nbsp;&nbsp;&nbsp;SJR indikátor:&nbsp;Q4</div> </div></OnlyViewableByAuthor> <div class="publication-citation" style="margin-left: 0.5cm;"> <span title="Nyilvános idézőközlemények összesen, említések nélkül" class="citingPub-count">Nyilvános idéző összesen: 1</span> | Független: 0 | Függő: 1 | Nem jelölt: 0 | Scopus jelölt:&nbsp;1 | WoS/Scopus jelölt:&nbsp;1 | DOI jelölt:&nbsp;1 </div> <div class="publication-citation"> <a target="_blank" href="/api/publication?cond=citations.related;eq;36074233&sort=publishedYear,desc&sort=title"> Idézett közlemények száma: 3 </a> </div> <div class="mtid"><span class="long-pub-mtid">Közlemény: 36074233</span> | <span class="status-data status-VALIDATED"> Egyeztetett </span> Forrás Idéző | <span class="type-subtype">Folyóiratcikk ( Szakcikk ) </span> | <span class="pub-category">Tudományos</span> | <span class="publication-sourceOfData">Scopus</span> </div> <div class="funder"> (National Tumor Biology Laboratory project—2022-2.1.1-NL-2022-00010) </div> <div class="lastModified">Utolsó módosítás: 2025.12.24. 19:50 Szuper Admin (admin) </div> <pre class="comment" style="margin-top: 0; margin-bottom: 0;"><u>Megjegyzés</u>: Center of Radiotherapy, National Institute of Oncology, Budapest, Hungary Doctoral School of Physical Sciences, Budapest University of Technology and Economics, Budapest, Hungary Doctoral School, Semmelweis University, Budapest, Hungary Institute of Nuclear Techniques, Budapest University of Technology and Economics, Budape...</pre> </div></div>