CUMULATIVE MEDICAL RADIATION: UNCOVERING KEY DRIVERS AND VULNERABLE POPULATIONS

Abstract

The widespread adoption of advanced medical imaging technologies has dramatically improved diagnostic capabilities but has simultaneously raised concerns about cumulative radiation exposure from recurrent imaging procedures. This comprehensive review examines the growing evidence on high cumulative effective doses (CEDs) in medical imaging, identifying key patient populations at risk and analyzing the primary drivers of repeated imaging. Drawing on multinational data, we explore the prevalence of patients receiving CEDs exceeding 100 mSv—a threshold considered significant for radiation protection purposes. Certain clinical scenarios emerge as particularly associated with high cumulative radiation exposure, including trauma care, intensive care unit admissions, chronic conditions requiring regular monitoring, and emergency department revisits. The review discusses radiation protection principles, risk communication challenges, and practical strategies to optimize radiation exposure while maintaining diagnostic quality. By synthesizing current evidence, we provide insights for healthcare providers to identify high-risk patients and implement appropriate radiation management strategies while ensuring optimal patient care.