Develop Optimal Tube Voltage and Tube Current Chart for Radiation Reduction in Pediatric CT Examinations

Abstract

Many different techniques and researches on
reducing the radiation dose for computed tomography (CT)
examinations have been reported and developed in recent 30
years. However, most those technologies are not practical enough
to enable them to be directly and easily implemented in clinic
real applications because there is no directly relationship
between those techniques and the actual CT scanning parameters
to be applied on most clinic pediatric CT examinations. In this
study, a practical and flexible technique chart is developed to
enable radiologists to select the optimal tube voltage and tube
current for the given body-size of the pediatric patients with the
desired CT dose index (CTDIvol). This chart can be easily
implemented in most clinics for routine pediatric CT
examinations.