Reference phantom selection in pediatric computed tomography using data from a large, multicenter registry.

ABSTRACT:

Background

Radiation dose metrics vary by the calibration reference phantom used to report doses. By convention, 16-cm diameter cylindrical polymethyl-methacyrlate phantoms are used for head imaging and 32-cm diameter phantoms are used for body imaging in adults. Actual usage patterns in children remain under-documented.

Objective

This study uses the University of California San Francisco International CT Dose Registry to describe phantom selection in children by patient age, body region and scanner manufacturer, and the consequent impact on radiation doses.

Materials and methods

For 106,837 pediatric computed tomography (CT) exams collected between Jan. 1, 2015, and Nov. 2, 2020, in children up to 17 years of age from 118 hospitals and imaging facilities, we describe

SUBMITTER: Chu PW 

PROVIDER: S-EPMC8857172 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature