Optimised paediatric CT dose at a tertiary children's hospital in Japan: a 4-y single-centre analysis.
Y Nakada, M Fujiwara, M Yakami, T Yokoyama, A Shirayama, H Yamamoto, K Nabatame, S Obara, K Akahane, BJ Blyth, O Miyazaki, H Date, K Yagi, A Hoshioka, Y Shimada
Radiat Prot Dosimetry | Published : 2016
Since diagnostic reference levels (DRLs) for children are not currently established in Japan, the authors determined local DRLs for the full range of paediatric CT examinations in a single tertiary care children's hospital. A retrospective review of 4801 CT performance records for paediatric patients (<15 y old) who had undergone CT examinations from 2008 to 2011 was conducted. The most frequent examinations were of the head (52 %), followed by cardiac (15 %), temporal bone (9 %), abdomen (7 %), chest (6 %) and others (11 %). Approximately one-third of children received two or more CT scans. The authors' investigation showed that mean CTDIvol and DLP for head, chest and abdomen increased as ..View full abstract