Joanna Izewska
International Atomic Energy Agency
Imaging phantomDosimeterQuality assuranceOpticsPhysicsAgency (sociology)Quality auditThermoluminescent dosimeterPhotonBeam (structure)Materials scienceMedical physicsAuditRadiation treatment planningPhoton beamsNuclear medicineComputer scienceRadiation therapyMedicineDosimetry
82Publications
18H-index
1,347Citations
Publications 82
Newest
#1Josep Sempau (UPC: Polytechnic University of Catalonia)H-Index: 28
#2P. Kazantsev (IAEA: International Atomic Energy Agency)
Last. Lorenzo Brualla (University of Duisburg-Essen)H-Index: 16
view all 4 authors...
The International Atomic Energy Agency (IAEA), jointly with the World Health Organization (WHO), has operated a postal dosimetry audit program for radiotherapy centers worldwide since 1969. In 2017 the IAEA introduced a new methodology based on radiophotoluminescent dosimetry (RPLD) for these audits. The detection system consists of a phosphate glass dosimeter inserted in a plastic capsule that is kept in measuring position with a PMMA holder during irradiation. Correction factors for this holde...
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#1Wolfgang Lechner (Medical University of Vienna)H-Index: 9
#2Alexander Primeßnig (Medical University of Vienna)H-Index: 1
Last. Dietmar Georg (Medical University of Vienna)H-Index: 60
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AbstractBackground: Dosimetric effects of inaccuracies of output factors (OFs) implemented in treatment planning systems (TPSs) were investigated.Materials and methods: Modified beam models (MBM) f...
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#1Joanna Izewska (IAEA: International Atomic Energy Agency)H-Index: 18
#2Tomislav Bokulić (IAEA: International Atomic Energy Agency)H-Index: 5
Last. Debbie van der Merwe (IAEA: International Atomic Energy Agency)H-Index: 4
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AbstractBackground: The IAEA/WHO postal dose audit programme has been operating since 1969 with the aim of improving the accuracy and consistency of dosimetry in radiotherapy in low-income and midd...
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#1Pavel Kazantsev (IAEA: International Atomic Energy Agency)H-Index: 4
#2Wolfgang Lechner (Medical University of Vienna)H-Index: 9
Last. Joanna Izewska (IAEA: International Atomic Energy Agency)H-Index: 18
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AbstractBackground: The IAEA has developed and tested an on-site, end-to-end IMRT/VMAT dosimetry audit methodology for head and neck cases using an anthropomorphic phantom. The audit methodology is...
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#1Emelie Adolfsson (Linköping University)H-Index: 5
#2Paulina Wesolowska (IAEA: International Atomic Energy Agency)H-Index: 6
Last. Åsa Carlsson Tedgren (Karolinska University Hospital)H-Index: 13
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The aim of this study was to test two different solid state dosimetry systems for the purpose of end-to-end audits of radiotherapy volumetric modulated arc therapy (VMAT) technique; a lithium forma ...
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#1Tania Santos (UC: University of Coimbra)H-Index: 4
Last. Joanna Izewska (IAEA: International Atomic Energy Agency)H-Index: 18
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Abstract Purpose The IAEA newly developed “end-to-end” audit methodology for on-site verification of IMRT dose delivery has been carried out in Portugal in 2018. The main goal was to evaluate the physical aspects of the head and neck (H&N) cancer IMRT treatments. This paper presents the national results. Methods All institutions performing IMRT treatments in Portugal, 20 out of 24, have voluntarily participated in this audit. Following the adopted methodology, a Shoulder, Head and Neck End-to-En...
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#1Paulina Wesolowska (IAEA: International Atomic Energy Agency)H-Index: 6
#2Dietmar Georg (Medical University of Vienna)H-Index: 60
Last. Joanna Izewska (IAEA: International Atomic Energy Agency)H-Index: 18
view all 26 authors...
AbstractIntroduction: Within an International Atomic Energy Agency (IAEA) co-ordinated research project (CRP), a remote end-to-end dosimetric quality audit for intensity modulated radiation therapy...
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#1Tania SantosH-Index: 4
Last. Joanna IzewskaH-Index: 18
view all 3 authors...
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#1Joanna IzewskaH-Index: 18
#2Tomislav BokulićH-Index: 5
Last. Paulina WesolowskaH-Index: 6
view all 4 authors...
#1Stephen F Kry (University of Texas MD Anderson Cancer Center)H-Index: 41
#2Christine B. Peterson (University of Texas MD Anderson Cancer Center)H-Index: 21
Last. Ivan WilliamsH-Index: 7
view all 20 authors...
Abstract Background and purpose Remote beam output audits, which independently measure an institution’s machine calibration, are a common component of independent radiotherapy peer review. This work reviews the results and trends of these audit results across several organisations and geographical regions. Materials and methods Beam output audit results from the Australian Clinical Dosimetry Services, International Atomic Energy Agency, Imaging and Radiation Oncology Core, and Radiation Dosimetr...
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