Quality control in “Intensity Modulated Radiation Therapy-IMRT” using thermoluminescent dosimeters
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2019
Autores IPEN
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INTERNATIONAL CONFERENCE ON DOSIMETRY AND ITS APPLICATIONS, 3rd
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Introduction
Quality assurance in radiation therapy included all actions for ensure the maximum dose
for the target volume (tumour) and minimum dose for the healthy tissues. The use of
thermoluminescent detectors for evaluation of the absorbed doses in treatments that involve
the use of ionizing radiation is widespread and well established in clinical routine. The quality
measures are employed to validate system performance, such as IMRT quality assurance (QA).
An example for IMRT QA is the decision not to treat the patient if the comparison between
a point-dose measurement and the planned value exceeds a predefi ned acceptance criterion
(±5%). This work aimed the evaluation of absorbed doses with the use of thermoluminescent
detectors (TLDs) of lithium fl uoride doped with magnesium and titanium (LiF:Mg,Ti) and a
polymethylmethacrylate (PMMA) phantom in Intensity Modulated Radiation Therapy – IMRT
planning.
Methods
In this study the PMMA phantom simulated a patient in treatment. The central cavity
(rectangular format) was considered like target volume (tumour) and the others four cavities
were considered like organs at risk. The TLDs were positioned inside the cavities; each cavity
has an EVA mold for the positioning of TLDs.
Como referenciar
MATSUSHIMA, L.C.; VENEZIANI, G.R.; SAKURABA, R.K.; CAMPOS, L.L. Quality control in “Intensity Modulated Radiation Therapy-IMRT” using thermoluminescent dosimeters. In: INTERNATIONAL CONFERENCE ON DOSIMETRY AND ITS APPLICATIONS, 3rd, May 27-31, 2019, Lisboa, Portugal. Abstract... Lisboa, Portugal: C2TN, Instituto Superior Técnico, Universidade de Lisboa, 2019. Disponível em: http://repositorio.ipen.br/handle/123456789/31019. Acesso em: 29 Apr 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.