Keywords:
Interventional vascular, Radioprotection / Radiation dose, Soft tissues / Skin, Fluoroscopy, Radiation safety
Authors:
M. Dehairs, H. Bosmans, G. Maleux, N. Marshall; Leuven/BE
DOI:
10.26044/ecr2019/C-2855
Methods and materials
This study examined all interventional radiology procedures performed last year (November 2017-October 2018) on a Philips Allura Clarity system in our university hospital.
The DAP,
air kerma at the reference point(Ka,r) and PSD were collected using the dose management platform DOSE (Qaelum,
Belgium).
This platform estimates PSD from geometric information (table position,
tube orientation,
patient size) and the Ka,r ( Fig. 1 ).
These calculations and the patient dose maps have been validated in previous studies using ionization chambers and Gafchromic film measurements.
All cases with PSD above 2 and 3 Gy were quantified and the correlation with the patient DAP and Ka,r was calculated.
All outlier points with high PSD (above 2Gy) and low DAP (below 300 Gy.cm²) and low PSD (below 2Gy) and high DAP (above 500 Gy.cm²) were also examined.