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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/57959
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dc.creatorAbner Duarte Soarespt_BR
dc.creatorLucas Paixão Reispt_BR
dc.creatorAlessandro Facurept_BR
dc.date.accessioned2023-08-18T23:45:54Z-
dc.date.available2023-08-18T23:45:54Z-
dc.date.issued2018-12-23-
dc.citation.volume45pt_BR
dc.citation.issue11pt_BR
dc.citation.spage5283pt_BR
dc.citation.epage5292pt_BR
dc.identifier.doihttps://doi.org/10.1002/mp.13181pt_BR
dc.identifier.issn00942405pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/57959-
dc.description.resumoPurpose: The main goal of this study was to determine the dose rate constant of radionuclides used in Nuclear Medicine when they are biodistributed in humans. The secondary goal was to calculate the effective half-life for the same radionuclides in order to determine the realistic dose due to the incorporation of these nuclides for a variety of reasons.Methods: Anthropomorphic voxel phantoms, with characteristics based on ICRP-110 were consid ered and the biodistributions of radionuclides were simulated using the Monte Carlo code MCNPX.In addition, the effective half-lives for all simulated radionuclides were calculated.Results: The results for the dose rate constant, taking into account the patient body attenuation,showed no correlation between the biodistribution of the radionuclide and the energy of the radiationemitted. Body attenuation ranged between 6.7% and 94.1%. Also, the priority angle of radiation emission was determined. The values found for the body attenuation agree with the literature, corroborating the calculation of the body dose rate constant.Conclusions: The results for the body dose rate constant calculated in this work, for 30 radionu clides and 57 radiopharmaceuticals, and their effective half-lives, may be used to estimate the dose emitted by a person who has incorporated a radionuclide in the Nuclear Medicine activity range. This dose will be optimized when the body dose rate constant and the effective half-life determined in this study are used together with dose reduction factorspt_BR
dc.format.mimetypepdfpt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentMED - DEPARTAMENTO DE ANATOMIA E IMAGEMpt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofMedical Physics-
dc.rightsAcesso Restritopt_BR
dc.subjectBiodistributionpt_BR
dc.subjectBody attenuationpt_BR
dc.subjectDose rate constantpt_BR
dc.subjectEffective half-lifept_BR
dc.subjectMonte Carlo simulationpt_BR
dc.subjectVoxel phantomspt_BR
dc.subject.otherDosagempt_BR
dc.subject.otherMétodo de Monte Carlopt_BR
dc.titleDetermination of the dose rate constant through Monte Carlo simulations with voxel phantomspt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://aapm.onlinelibrary.wiley.com/doi/full/10.1002/mp.13181pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0579-309Xpt_BR
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