dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorMCT
dc.date.accessioned2014-05-20T13:34:25Z
dc.date.available2014-05-20T13:34:25Z
dc.date.created2014-05-20T13:34:25Z
dc.date.issued2012-03-01
dc.identifierMedical Physics. Melville: Amer Assoc Physicists Medicine Amer Inst Physics, v. 39, n. 3, p. 1357-1360, 2012.
dc.identifier0094-2405
dc.identifierhttp://hdl.handle.net/11449/11796
dc.identifier10.1118/1.3685588
dc.identifierWOS:000301503400023
dc.description.abstractPurpose: The main purpose of the present study was to determine the amounts of different tissues in the chest of the newborn patient (age <= 1 year), with the aim of developing a homogeneous phantom chest equivalent. This type of phantom is indispensable in the development of optimization procedures for radiographic techniques, including dosimetric control, which is a crucial aspect of pediatric radiology. The authors present a systematic set of procedures, including a computational algorithm, to estimate the amounts of tissues and thicknesses of the corresponding simulator material plates used to construct the phantom.Methods: The Gaussian fit of computed tomographic (CT) analysis was applied to classify and quantify different biological tissues. The methodology is summarized with a computational algorithm, which was used to quantify tissues through automated CT analysis. The thicknesses of the equivalent homogeneous simulator material plates were determined to construct the phantom.Results: A total of 180 retrospective CT examinations with anterior-posterior diameter values ranging 8.5-13.0 cm were examined. The amounts of different tissues were evaluated. The results provided elements to construct a phantom to simulate the infant chest in the posterior-anterior or anterior-posterior (PA/AP) view.Conclusions: To our knowledge, this report represents the first demonstration of an infant chest phantom dedicated to the radiology of children younger than one year. This phantom is a key element in the development of clinical charts for optimizing radiographic technique in pediatric patients. Optimization procedures for nonstandard patients were reported previously [Pina , Phys. Med. Biol. 49, N215-N226 (2004) and Pina , Appl. Radiat. Isot. 67, 61-69 (2009)]. The constructed phantom represents a starting point to obtain radiologic protocols for the infant patient. (C) 2012 American Association of Physicists in Medicine. [DOI: 10.1118/1.3685588]
dc.languageeng
dc.publisherAmer Assoc Physicists Medicine Amer Inst Physics
dc.relationMedical Physics
dc.relation2.884
dc.relation1,289
dc.rightsAcesso restrito
dc.sourceWeb of Science
dc.subjectphantom
dc.subjectbiological tissues
dc.subjectsimulator materials
dc.subjectquantification
dc.subjectx-ray imaging
dc.titleAnalysis of biological tissues in infant chest for the development of an equivalent radiographic phantom
dc.typeArtículos de revistas


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