Pediatric Dosimetry Overview

Principles

Definition

Pediatric dosimetry is the specialized academic field and methodological approach concerned with the measurement, calculation, and assessment of radiation dose delivered to pediatric patients. This discipline investigates the unique interactions of ionizing radiation with the developing anatomy, physiology, and increased radiosensitivity of children, which is critical for optimizing medical imaging and radiation therapy protocols to minimize radiation-induced risks throughout their longer life expectancy.

Ontological type

Imaging Protocol Optimization

Dose Calculation Methods

Risk Assessment Models

Key developments

Key Figures

Protocol-driven CT Optimization era

Thomas Bortfeld [1] was associated with Harvard University [3] and Heidelberg University [4] during the Protocol-driven CT Optimization era (1998–2004). His key contribution, illustrated by the 2000 paper Correlation between CT numbers and tissue parameters needed for Monte Carlo simulations of clinical dose distributions [7], helped establish CT-number–to–tissue mapping essential for accurate Monte Carlo dose estimations in pediatric cohorts, a foundation for protocol optimization. Donald P. Frush [2] was affiliated with Duke University [5] and The University of Melbourne [6] during this era. His contributions include the 2001 paper Minimizing Radiation Dose for Pediatric Body Applications of Single-Detector Helical CT [8], advancing practical dose-reduction strategies for pediatric CT, and the 2001 Fallout from recent articles on radiation dose and pediatric CT [9], which helped frame safety discourse and benchmark-setting needed for protocol-driven optimization.

Phantom-Based Dose Harmonization era

S. Ted Treves[1] is associated with Harvard University[3] and Massachusetts Institute of Technology[4] during this era. His key contribution in this era includes the 2011 Pediatric Radiopharmaceutical Administered Doses: 2010 North American Consensus Guidelines[7], which standardized pediatric dosing practices and supported cross-center benchmarking. Walter Huda[2] is associated with Medical University of South Carolina[5] and SUNY Upstate Medical University[6] during this era. His key contribution in this era includes Volume CT Dose Index and Dose-Length Product Displayed during CT: What Good Are They?[8], which clarified the utility of CT dose metrics and facilitated consistent dose estimation across centers.

Size-Specific, Uncertainty-Aware Dosimetry era

John M. Boone [1] was affiliated with the University of California, San Francisco [3] and the University of California, Santa Barbara [4] during this era. His key contribution, exemplified by the Use of Water-Equivalent Diameter for Calculating Patient Size and Size-Specific Dose Estimates (SSDE) in CT [7], advanced size-specific dosimetry and helped bound pediatric CT dose uncertainty in this era. Shuai Leng [2] was affiliated with The University of Texas Southwestern Medical Center [5] and Johns Hopkins University [6] during this era. Her contribution, as described in the same paper [7], contributed to advancing the size-specific framework and its integration into clinical planning and QA workflows for pediatric dosimetry.