Highlights
- •Cardiologists in catheterization procedures can receive high eye-lens equivalent doses.
- •Individual eye-lens dosimetry is recommended for highly exposed workers.
- •Accurate uncertainty assessment is needed in eye-lens dosimetry.
Abstract
Purpose
To perform a multi-centre survey on the eye lens equivalent dose absorbed by primary
interventionalist during catheterization procedures, using a personal dosimeter placed
close to the eye lens.
Methods
15 different cardiologists working in 3 different centers, for a total of 5 operating
rooms were enrolled. All of them were provided with a single thermoluminescent dosimeter
positioned on the inner side of the temples of eyeglasses. The dose monitoring, performed
on a two-months basis, started in 2016 and is still running. All dose measurements
were performed by a ISO 17025 standard accredited dosimetry service thus providing
certified uncertainties as well. Correlation of eye lens and wrist dose with KAP was
also investigated.
Results
A total number of 101 eye lens measurements were performed. Annual eye lens dose estimation
was obtained for all 15 surgeons (mean, mode, range, standard deviation: 10.8, 8,
4.9–27.3, 5.6 mSv, respectively). Uncertainties on annual eye lens dose estimations
ranged between 10% and 20%. No significant correlation was found between eye lens
dose and KAP.
Conclusions
Cardiologists involved in catheterization procedures may receive annual eye lens doses
close to the ICRP 118 dose limit and thus individual monitoring with a dedicated dosimeter
should be carried out. Uncertainty assessment play a relevant role in eye lens equivalent
dose estimation to ensure not to exceed dose limit.
Keywords
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Article info
Publication history
Published online: April 03, 2019
Accepted:
March 27,
2019
Received in revised form:
March 27,
2019
Received:
December 3,
2018
Identification
Copyright
© 2019 Published by Elsevier Ltd on behalf of Associazione Italiana di Fisica Medica.
