Congress:
EuroSafe Imaging 2019
Keywords:
Action 2 - Clinical diagnostic reference levels (DRLs), Action 4 - Dose management systems, Thorax, Radiation physics, Radioprotection / Radiation dose, CT, Physics, Radiation safety, Statistics, Dosimetric comparison
Authors:
N. Saltybaeva, H. Alkadhi
DOI:
10.26044/esi2019/ESI-0061
Background/introduction
National dose reference levels (NDRLs) are normally set on the basis of the typical doses observed in wide scale (national) surveys [1].
NDRLs represent the dose values averaged over a broad range of healthcare facilities and do not take into account any dose reduction technique (i.e.
automatic exposure control,
low tube voltage scanning,
etc.) applied by specific hospital.
Additionally,
majority of the existing NDRLs are based on anatomical regions and do not consider clinical indications and desired image quality.
Clinical-based DRLs may overcome these limitations.
The purpose of this study was a) to specify up-to-date clinical DRLs for the most common CT examinations of adult patients; b) to establish a program for systematic dose revision and further optimization.