Congress:
EuroSafe Imaging 2019
Keywords:
Action 2 - Clinical diagnostic reference levels (DRLs), Radioprotection / Radiation dose, CT, Dosimetry, Dosimetric comparison, Quality assurance
Authors:
B. Habib Geryes, O. Hélénon
DOI:
10.26044/esi2019/ESI-0005
Conclusion and recommendations
Discussion:
When comparing different indications within same body region,
examination DLP analysis showed significantly higher values for tumor assessment indication compared to other indications.
This can be explained by the high image quality requirements for this indication.
Other published studies on DRLs are only based on an anatomic region and on single CT phase.
A very few studies involved the influence of clinical indication on the total DLP of the examination [1].
The 75th percentile values of total DLP in our study were higher than UK published values [1]; 460 mGy.cm for renal colic indication and 1000 mGy.cm for chest abdomen and pelvis tumour assessment indication.
Conclusion:
Clinical DRLs are useful tool,
adapted to clinical practice,
to benchmark CT imaging protocols and optimise patient dose.