|ECR 2019 / C-1825||
|Where do the scattering X-rays that are exposed to the eye lens come from during neonatal cardiac CT examination?|
In this study, we focused our attention on exposure dose to the eye lens of a neonate during cardiac CT examination and directly measured exposure dose during examination using a small type OSL dosimeter. We measured the dose contribution for each direction entering the dosimeter and examined appropriate shielding methods for dose reduction by clarifying the mechanism of the eye lens exposure. 70% of scattered X-rays which are exposed to the eye lens were generated from the patient’s body. Additionally, we found that the dose could be greatly reduced by using two lead prototype protectors.
Thematically related posters
ECR 2019 / C-2023
Establishing Clinically Indicated Diagnostic Reference Levels for Specific Interventional Cardiac Procedures in a Leading National Cardiology Centre
ECR 2019 / C-3815
The use of conversion factors of size-specific dose estimates (SSDE) acquired with full scans for partial scans