Sample Size and Estimation of Standard Radiation Doses for Pediatric Brain CT.

ABSTRACT: Estimation of the standard radiation dose at each imaging facility is required for radiation dose management, including establishment and utilization of the diagnostic reference levels. We investigated methods to estimate the standard dose for pediatric brain computed tomography (CT) using a small number of data. From 980 pediatric brain CT examinations, 25, 50, and 100 examinations were randomly extracted to create small, medium, and large datasets, respectively. The standard dose was estimated by applying grouping and curve-fitting methods for 20 datasets of each sample size. For the grouping method, data were divided into groups according to age or body weight, and the standard dose was defined as a median value in each group. For the curve-fitting methods, logarithmic, power, and bilin

SUBMITTER: Inoue Y 

PROVIDER: S-EPMC9612354 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature