Protocol Selection
Select the appropriate CT protocol based on the clinical question and avoid multiphase scans unless clinically justified. Use size based kVp and mA selection and automated exposure control to tailor dose to patient habitus. Limit scan length to the region of interest and avoid routine multiphase imaging for follow up when single phase suffices.
Reconstruction and Technology
Employ iterative reconstruction and deep learning based denoising to maintain image quality at lower dose levels. Use low kVp protocols for contrast enhanced studies in smaller patients to improve contrast to noise ratio. Validate vendor specific dose reduction technologies and harmonize settings across scanners for consistency.
Quality Assurance and Benchmarking
Establish diagnostic reference levels for common CT exams and monitor adherence through dose dashboards and audits. Perform periodic phantom testing and cross calibration to ensure consistent dose reporting across scanners. Engage multidisciplinary teams to review protocols and implement dose reduction projects.
Communication and Education
Educate ordering clinicians about appropriate use criteria and alternatives to CT to reduce unnecessary imaging. Provide technologists with training on pediatric and low dose protocols and empower them to question inappropriate orders. Communicate dose information to patients when relevant and document justification for higher dose studies.