EuroSafe Imaging 2020
Performed at one institution, Experimental, Not applicable, Quality assurance, Radiation safety, Dosimetry, CT, Radioprotection / Radiation dose, Paediatric, Action 7 - Radiation protection of children
A. Euler, N. Saltybaeva, H. Alkadhi
Conclusion and recommendations
Our study indicates that in pediatric CT, ATCM, organ radiation doses, and image noise were substantially affected by vertical patient positioning, with radiation dose differences compared to the 0-position of up to 34%. Our results extend the current body of literature for pediatric CT of the head and trunk by the following main findings: i) the impact of patient positioning depends on the body region and location of each individual organ within the body; ii). differences in organ dose are caused by both ATCM and bowtie filter in thoracoabdominal CT, but are mainly affected by the bowtie filter in head CT; iii) scatter radiation is not significantly related to patient position; and iv) lateral scout images can negatively impact ATCM.
Radiation dose differences of up to 34% compared to the isocenter highlight the necessity to train technologists to position pediatric patients accurately.