Osamu Miyazaki, M.D.

Department of Radiology, National Center for Child Health and Development

　　The purpose of this review article is to discuss the current status of pediatric multislice CT (MSCT) in Japan. The evolution of the CT scanner has developed new means of diagnosis of pediatric disease, such as acute appendicitis and congenital heart disease (3-DCT angiography). Our survey suggested that optimization of pediatric MSCT has already been carried out by 90% of respondents, based on technician’s experience or automatic exposure controller. However, the situation of dose control of pediatric CT seems to be somewhat different from the ICRP recommendation because of the low occupancy ratio of radiologist to CT unit in Japan. The age-based average mAs setting for Japanese abdominal CT seems to be almost the same as in the previously published US survey (2001). The last content of this article describes how we decided the weight-based parameter setting for our 8 data acquisition system MSCT.

Keywords：CT, Children, Survey