Highlights
- •Eye lens dose was assessed in clinical and experimental conditions.
- •Dose reduction factors of various models of glasses and visors were determined.
- •Statistically significant correlation between Hp(3) and KAP was obtained.
- •DRF of 4 is suggested to obtain conservative estimates of the eye lens dose.
Abstract
Purpose
To assess occupational eye lens dose based on clinical monitoring of interventional
radiologists and to assess personal protective eyewear (PPE) efficacy through measurements
with anthropomorphic phantom.
Methods
Two positions of the operator with respect to X-ray beam were simulated with phantom.
Dose reduction factor (DRF) of four PPE was assessed, as well as correlation between
eye lens and whole-body doses. Brain dose was also assessed. Five radiologists were
monitored for one-year clinical procedures. All subjects were equipped with whole-body
dosimeter placed over lead apron at the chest level and eye lens dosimeter placed
over the left side of the PPE. Kerma-Area Product (KAP) of procedures performed during
the monitoring period was recorded. The correlation of eye lens dose with whole-body
dose and KAP was assessed.
Results
DRF was 4.3/2.4 for wraparound glasses, 4.8/1.9 for fitover glasses, 9.1/6.8 for full-face
visor in radial/femoral geometries. DRF of half-face visor depended on how it is worn
(range 1.0–4.9). Statistically significant correlation between dose value over the
PPE and chest dose was observed, while there was no correlation between eye lens dose
and chest dose. The results on clinical staff showed statistically significant correlation
between dose values over the PPE and KAP.
Conclusions
All PPE showed significant DRF in all configurations, provided they were worn correctly.
Single DRF value is not applicable to all clinical situations. KAP is a valuable tool
for determining appropriate radiation protection measures.
Keywords
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Article info
Publication history
Published online: May 11, 2023
Accepted:
May 3,
2023
Received in revised form:
April 21,
2023
Received:
February 27,
2023
Identification
Copyright
© 2023 Associazione Italiana di Fisica Medica e Sanitaria. Published by Elsevier Ltd. All rights reserved.
