Рентгенология & Радиология, 2010, XLІХ 271-276

Survey of practice in pediatric computed tomography and potential for reduction of patient doses
D. Kostova-Lefterova, J. Vassileva
Radiation Protection at Medical Exposure Section, NCRRP – Sofia


This study was aimed at assessing the current practice in pediatric computed tomography (CT) examinations in several hospitals in Bulgaria and providing information how the pediatric CT protocols can be optimized. The survey was performed in 12 CT rooms with scanners of different type, using standardized questionnaires and forms for recording of data for patient, exposure parameters and dose. The questionnaires were answered by 13 radiologists and 12 radiographers. Dedicated scanning protocols for children are available in most of the departments but they are not well optimized and exposure parameters are subjectively modified. The use of adult protocols for scanning of pediatric patient results in higher patient doses. Inadequate is the utilization of immobilization devices resulting in use of sedation for more than 50% of pediatric patients under 5 years old, or need of parents support. The lack of written referral guidelines for imaging was
demonstrated. Some recommendations were given how to optimize examinations and to reduce patient doses.

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