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Rev Prat ; 74(1): 69-73, 2024 Jan.
Artigo em Francês | MEDLINE | ID: mdl-38329259

RESUMO

RISKS OF RADIODIAGNOSTIC EXAMINATIONS IN CHILDREN. The question of cancer risk associated with diagnostic medical exposure during childhood is important in view of the sharp increase in the use of radiological examinations, particularly computed tomography (CT), since the 2000s. Moreover, children represent a population particularly sensitive to ionizing radiation. Although conventional radiology examinations do not seem to be associated with an increased risk of cancer, several epidemiological studies, including some with high statistical power, show an increased risk of leukemia and brain tumors in children exposed to CT scans. These results reinforce the importance of the principles of radiation protection already applied daily in radiology, based on the justification of procedures, substitution as far as possible by techniques that do not expose patients to ionizing radiations (ultrasound and magnetic resonance imaging) and, if the use of CT scanners remains essential, systematic optimization of the doses delivered.


RISQUES DES EXAMENS RADIODIAGNOSTIQUES CHEZ L'ENFANT. La question du risque de cancer associé à l'exposition médicale à visée diagnostique pendant l'enfance est importante face à la forte augmentation de l'utilisation des examens radiologiques, notamment des scanners depuis les années 2000. De plus, les enfants représentent une population particulièrement sensible aux rayonnements ionisants. Si les examens de radiologie conventionnelle ne semblent pas associés à un sur-risque de cancer, plusieurs études épidémiologiques, dont certaines de grande puissance statistique, montrent une augmentation du risque de leucémie et de tumeur cérébrale pour des enfants exposés au scanner. Ces résultats renforcent l'importance du respect des principes de radioprotection déjà appliqués quotidiennement en radiologie reposant sur la justification des actes, la substitution autant que possible par des techniques n'exposant pas aux rayonnements ionisants (échographie et imagerie par résonance magnétique) et, si l'emploi du scanner reste indispensable, l'optimisation systématique des doses délivrées.


Assuntos
Neoplasias Induzidas por Radiação , Proteção Radiológica , Humanos , Criança , Neoplasias Induzidas por Radiação/epidemiologia , Neoplasias Induzidas por Radiação/etiologia , Neoplasias Induzidas por Radiação/prevenção & controle , Medição de Risco , Tomografia Computadorizada por Raios X/efeitos adversos , Radiografia , Doses de Radiação
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