The importance of protection glasses during neuroangiographies

A study on radiation exposure at the lens of the primary operator

J. B. Tavares, Ema Sacadura Leite, T. Matoso, L. L. Neto, L. Biscoito, J. Campos, A. Sousa-Uva

Research output: Contribution to journalArticle

2 Citations (Scopus)
9 Downloads (Pure)

Abstract

Background In interventional neuroradiology, few operators routinely use radiation protection glasses. Moreover, in most centers, radiation dose data only accounts for whole body dose without specific information on lens dose. In 2012, the International Commission on Radiological Protection advised that the threshold limit value for the lens should be 20 mSv/year instead of the previous 150 mSv/year limit. The purpose of this study was to compare the radiation dose in the operator's lens during real diagnostic and interventional neuroangiographies, either using or without lead protection glasses. Methods Using the Educational Direct Dosimeter (EDD30 dosimeter), accumulated radiation dose in the lens was measured in 13 neuroangiographies: seven diagnostic and six interventional. Operators with and without radiation protection glasses were included and the sensor was placed near their left eye, closest to the radiation beam. Results Without glasses, the corrected mean dose of radiation in the lens was 8.02 μSv for diagnostic procedures and 168.57 μSv for interventional procedures. Using glasses, these values were reduced to 1.74 μSv and 33.24 μSv, respectively. Conclusion Considering 20 mSv as the suggested annual limit of equivalent dose in the lens, neuroradiologists may perform up to 2,494 diagnostic procedures per year without protecting glasses, a number that increases to 11,494 when glasses are used consistently. Regarding intervention, a maximum of 119 procedures per year is advised if glasses are not used, whereas up to 602 procedures/year may be performed using this protection. Therefore, neuroradiologists should always wear radiation protection glasses.

Original languageEnglish
Pages (from-to)368-371
Number of pages4
JournalInterventional Neuroradiology
Volume22
Issue number3
DOIs
Publication statusPublished - 2016

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Lenses
Glass
Radiation Protection
Radiation
Threshold Limit Values
Radiation Exposure

Keywords

  • lead protection glasses
  • lens radiation exposure
  • Radiation protection

Cite this

@article{a52695ec196d4b64af6b632eb75a5d45,
title = "The importance of protection glasses during neuroangiographies: A study on radiation exposure at the lens of the primary operator",
abstract = "Background In interventional neuroradiology, few operators routinely use radiation protection glasses. Moreover, in most centers, radiation dose data only accounts for whole body dose without specific information on lens dose. In 2012, the International Commission on Radiological Protection advised that the threshold limit value for the lens should be 20 mSv/year instead of the previous 150 mSv/year limit. The purpose of this study was to compare the radiation dose in the operator's lens during real diagnostic and interventional neuroangiographies, either using or without lead protection glasses. Methods Using the Educational Direct Dosimeter (EDD30 dosimeter), accumulated radiation dose in the lens was measured in 13 neuroangiographies: seven diagnostic and six interventional. Operators with and without radiation protection glasses were included and the sensor was placed near their left eye, closest to the radiation beam. Results Without glasses, the corrected mean dose of radiation in the lens was 8.02 μSv for diagnostic procedures and 168.57 μSv for interventional procedures. Using glasses, these values were reduced to 1.74 μSv and 33.24 μSv, respectively. Conclusion Considering 20 mSv as the suggested annual limit of equivalent dose in the lens, neuroradiologists may perform up to 2,494 diagnostic procedures per year without protecting glasses, a number that increases to 11,494 when glasses are used consistently. Regarding intervention, a maximum of 119 procedures per year is advised if glasses are not used, whereas up to 602 procedures/year may be performed using this protection. Therefore, neuroradiologists should always wear radiation protection glasses.",
keywords = "lead protection glasses, lens radiation exposure, Radiation protection",
author = "Tavares, {J. B.} and Leite, {Ema Sacadura} and T. Matoso and Neto, {L. L.} and L. Biscoito and J. Campos and A. Sousa-Uva",
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language = "English",
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The importance of protection glasses during neuroangiographies : A study on radiation exposure at the lens of the primary operator. / Tavares, J. B.; Leite, Ema Sacadura; Matoso, T.; Neto, L. L.; Biscoito, L.; Campos, J.; Sousa-Uva, A.

In: Interventional Neuroradiology, Vol. 22, No. 3, 2016, p. 368-371.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The importance of protection glasses during neuroangiographies

T2 - A study on radiation exposure at the lens of the primary operator

AU - Tavares, J. B.

AU - Leite, Ema Sacadura

AU - Matoso, T.

AU - Neto, L. L.

AU - Biscoito, L.

AU - Campos, J.

AU - Sousa-Uva, A.

PY - 2016

Y1 - 2016

N2 - Background In interventional neuroradiology, few operators routinely use radiation protection glasses. Moreover, in most centers, radiation dose data only accounts for whole body dose without specific information on lens dose. In 2012, the International Commission on Radiological Protection advised that the threshold limit value for the lens should be 20 mSv/year instead of the previous 150 mSv/year limit. The purpose of this study was to compare the radiation dose in the operator's lens during real diagnostic and interventional neuroangiographies, either using or without lead protection glasses. Methods Using the Educational Direct Dosimeter (EDD30 dosimeter), accumulated radiation dose in the lens was measured in 13 neuroangiographies: seven diagnostic and six interventional. Operators with and without radiation protection glasses were included and the sensor was placed near their left eye, closest to the radiation beam. Results Without glasses, the corrected mean dose of radiation in the lens was 8.02 μSv for diagnostic procedures and 168.57 μSv for interventional procedures. Using glasses, these values were reduced to 1.74 μSv and 33.24 μSv, respectively. Conclusion Considering 20 mSv as the suggested annual limit of equivalent dose in the lens, neuroradiologists may perform up to 2,494 diagnostic procedures per year without protecting glasses, a number that increases to 11,494 when glasses are used consistently. Regarding intervention, a maximum of 119 procedures per year is advised if glasses are not used, whereas up to 602 procedures/year may be performed using this protection. Therefore, neuroradiologists should always wear radiation protection glasses.

AB - Background In interventional neuroradiology, few operators routinely use radiation protection glasses. Moreover, in most centers, radiation dose data only accounts for whole body dose without specific information on lens dose. In 2012, the International Commission on Radiological Protection advised that the threshold limit value for the lens should be 20 mSv/year instead of the previous 150 mSv/year limit. The purpose of this study was to compare the radiation dose in the operator's lens during real diagnostic and interventional neuroangiographies, either using or without lead protection glasses. Methods Using the Educational Direct Dosimeter (EDD30 dosimeter), accumulated radiation dose in the lens was measured in 13 neuroangiographies: seven diagnostic and six interventional. Operators with and without radiation protection glasses were included and the sensor was placed near their left eye, closest to the radiation beam. Results Without glasses, the corrected mean dose of radiation in the lens was 8.02 μSv for diagnostic procedures and 168.57 μSv for interventional procedures. Using glasses, these values were reduced to 1.74 μSv and 33.24 μSv, respectively. Conclusion Considering 20 mSv as the suggested annual limit of equivalent dose in the lens, neuroradiologists may perform up to 2,494 diagnostic procedures per year without protecting glasses, a number that increases to 11,494 when glasses are used consistently. Regarding intervention, a maximum of 119 procedures per year is advised if glasses are not used, whereas up to 602 procedures/year may be performed using this protection. Therefore, neuroradiologists should always wear radiation protection glasses.

KW - lead protection glasses

KW - lens radiation exposure

KW - Radiation protection

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U2 - 10.1177/1591019916628322

DO - 10.1177/1591019916628322

M3 - Article

VL - 22

SP - 368

EP - 371

JO - Interventional Neuroradiology

JF - Interventional Neuroradiology

SN - 1123-9344

IS - 3

ER -