Highlights
- •Eye lens dosimetry in interventional cardiology personnel had been studied.
- •The prevalence and risk of radiation associated lens opacity are proposed.
- •Radiation protection tools and personnel dosimeters are provided for IC.
Abstract
Purpose
To determine the eye lens dose of the Interventional Cardiology (IC) personnel using
optically stimulated luminescent dosimeter (OSLD) and the prevalence and risk of radiation
– associated lens opacities in Thailand.
Methods and results
48 IC staff, with age- and sex- matches 37 unexposed controls obtained eye examines.
Posterior lens change was graded using a modified Merriam-Focht technique by two independent
ophthalmologists. Occupational exposure (mSv) was measured in 42 IC staff, using 2
OSLD badges place at inside lead apron and at collar. Annual eye lens doses (mSv)
were also measured using 4 nanoDots OSL placed outside and inside lead glass eyewear.
The prevalence of radiation-associated posterior lens opacities was 28.6% (2/7) for
IC, 19.5% (8/41) for nurses, and 2.7% (1/37) for controls. The average and range of
annual whole body effective dose, Hp(10), equivalent dose at skin of the neck, Hp(0.07)
and equivalent dose at eye lens, Hp(3) were 0.80 (0.05–6.79), 5.88 (0.14–35.28), and
5.73 (0.14–33.20) mSv respectively. The annual average and range of eye lens dose
using nano Dots OSL showed the outside lead glass eyewear on left and right sides as 8.06 (0.17–32.45), 3.55(0.06–8.04) mSv
and inside left and right sides as 3.91(0.05–14.26) and 2.44(0.06–6.24) mSv respectively.
Conclusion
Eye lens doses measured by OSLD badges and nano Dot dosimeter as Hp(10), Hp(0.07)
and Hp(3). The eyes of the IC personnel were examined annually by two ophthalmologists
for the prevalence of cataract induced by radiation.
Keywords
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Article info
Publication history
Published online: October 17, 2017
Accepted:
October 14,
2017
Received in revised form:
September 30,
2017
Received:
March 31,
2017
Identification
Copyright
© 2017 Associazione Italiana di Fisica Medica. Published by Elsevier Ltd. All rights reserved.
