Reconstruction of segmented human voxel phantoms for skin dosimetry
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2009
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INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 9th; MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 16th; MEETING ON NUCLEAR INDUSTRY, 1st
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High-resolution medical images along with methods that simulate the interaction of radiation with matter, as the
Monte Carlo radiation transport codes, have been widely used in medical physics procedures. These images
provide the construction of realistic anatomical models, which after being coupled to these codes, may drive to
better assessments of dose distributions on the patient.
These anatomical models constructed from medical images are known as voxel phantoms (voxel - volume
element of an image). Present day regular images are unsuitable to correctly perform skin dose distribution
evaluations. This inability is due to improper skin discrimination in most of the current medical images, once its
thickness stands below the resolution of the pixels that form the image.
This paper proposes the voxel phantom reconstruction by subdividing and segmentating the elements that form
the phantom. It is done in order to better discriminate the skin by assigning it more adequate thickness and
actual location, allowing a better dosimetric evaluation of the skin. This task is an important issue in many
radiotherapy procedures. Particular interest lays in Total Skin Irradiation (TSI) with electron beams, where skin
dose evaluation stands as the treatment key point of the whole body irradiation. This radiotherapy procedure is
under implementation at the Hospital das Clínicas da Universidade de São Paulo (HC-USP).
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ANTUNES, PAULA C.G.; SIQUEIRA, PAULO de T.D.; YORIYAZ, HELIO; FONSECA, GABRIEL P.; REIS, GABRIELA; FURNARI, LAURA. Reconstruction of segmented human voxel phantoms for skin dosimetry. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 9th; MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 16th; MEETING ON NUCLEAR INDUSTRY, 1st, September 27 - October 2, 2009, Rio de Janeiro, RJ. Proceedings... Disponível em: http://repositorio.ipen.br/handle/123456789/12009. Acesso em: 20 Feb 2025.
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.