Abstract
Advances in CT have facilitated widespread use of medical imaging while increasing patient lifetime exposure to ionizing radiation. To describe dose optimization strategies used by health care organizations to optimize radiation dose and image quality. A qualitative study of semistructured interviews conducted with 26 leaders from 19 health care systems in the United States, Europe, and Japan. Interviews focused on strategies that were used to optimize radiation dose at the organizational level. A directed content analysis approach was used in data analysis. Analysis identified seven organizational strategies used by these leaders for optimizing CT dose: (1) engaging radiologistsand technologists, (2) establishing a CT dose committee, (3) managing organizational change, (4) providing leadershipand support, (5) monitoring and benchmarking, (6) modifying CT protocols, and (7) changes in equipment and work rules. Leaders in these health systems engaged in specific strategies to optimize CT dose within their organizations. The strategies address challenges health systems encounter in optimizing CT dose at the organizational level and offer an evolving framework for consideration in dose optimization efforts for enhancing safety and use of medical imaging.
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