Estimation of conversion coefficients for absorbed and effective doses for pediatric CT examinations in two different PET/CT scanners

dc.creatorPERINI, ANA P.
dc.creatorSANTOS, WILLIAM S.
dc.creatorNEVES, LUCIO P.
dc.creatorBELINATO, WALMIR
dc.creatorCALDAS, LINDA V.E.
dc.date2019
dc.date2019-04-03T18:25:29Z
dc.date2019-04-03T18:25:29Z
dc.date.accessioned2023-09-28T14:10:37Z
dc.date.available2023-09-28T14:10:37Z
dc.identifier0969-806X
dc.identifierhttp://repositorio.ipen.br/handle/123456789/29832
dc.identifier155
dc.identifierSI
dc.identifier10.1016/j.radphyschem.2018.07.009
dc.identifier60.153
dc.identifier73.00
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9000070
dc.descriptionNormally, during medical procedures, special attention must be given to pediatric patients when compared to adults. This is specially relevant during procedures involving ionizing radiation, as CT scans, given that children are considerably more sensitive to radiation induced stochastic effects than adults. In order to investigate the radiation doses on radiosensitive organs of pediatric patients, undergoing head, chest and abdomen CT procedures, numerical dosimetry was employed in this work. The novelty is the use of a new set of pediatric virtual anthropomorphic phantoms, coupled with Monte Carlo simulation, to determine the conversion coefficients for absorbed and effective doses. Two CT equipment were simulated, taking into account the main characteristics of those commercially available. The results were converted to conversion coefficients (mGy/100 mA) for several organs and tissues, and the highest values were obtained for the newborn phantom. This numerical approach employed a new and reliable technique for pediatric CT dosimetry.
dc.descriptionFunda????o de Amparo ?? Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.descriptionConselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico (CNPq)
dc.descriptionFAPEMIG: APQ 03049-15; APQ 02934-15
dc.descriptionCNPq: 421603/2016-0; 420699/2016-3; 168947/2017-0; 301335/2016-8
dc.format9-16
dc.relationRadiation Physics and Chemistry
dc.rightsopenAccess
dc.sourceInternational Topical Meeting on Industrial Radiation and Radioisotope Measurement Applications, 10th, July 10-12, 2017, Chicago, IL, USA
dc.subjectpatients
dc.subjectchildren
dc.subjectradiation doses
dc.subjectmonte carlo method
dc.subjectphantoms
dc.subjectcomputerized tomography
dc.subjectpediatrics
dc.subjectsimulation
dc.titleEstimation of conversion coefficients for absorbed and effective doses for pediatric CT examinations in two different PET/CT scanners
dc.typeArtigo de peri??dico
dc.coverageI


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