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Correlation between effective dose and radiological risk: general concepts* * Study conducted by the Radiation Dosimetry and Medical Physics Group of the Instituto de Física da Universidade de São Paulo (IFUSP), São Paulo, SP, Brazil.

Abstract

The present review aims to offer an educational approach related to the limitations in the use of the effective dose mgnitude as a tool for the quantification of doses resulting from diagnostic applications of ionizing radiation. We present a critical analysis of the quantities accepted and currently used for dosimetric evaluation in diagnostic imaging procedures, based on studies published in the literature. It is highlighted the use of these quantities to evaluate the risk attributed to the procedure and to calculate the effective dose, as well as to determine its correct use and interpretation.

Keywords:
Radiation dosage; Radiation effects; Diagnostic imaging/adverse effects; Relative biological effectiveness

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