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Eye Lens Radiation Dose to Nurses during Cardiac Interventional Radiology: An Initial Study.

Ayumi Yamada1, Yoshihiro Haga1,2, Masahiro Sota1,2

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This summary is machine-generated.

Interventional radiology (IVR) nurses face high radiation exposure. Direct eye dosimeters are crucial for accurately measuring lens doses, as neck badges and patient parameters may not fully capture individual nurse exposure.

Keywords:
X-ray examinationdisaster medicineeye lens dosefluoroscopically guided interventional proceduresinterventional radiology (IVR)nurseoccupational radiation exposurepercutaneous coronary intervention (PCI)radiation protection and safetyresilience

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Area of Science:

  • Medical Physics
  • Radiology
  • Occupational Health

Background:

  • Interventional radiology (IVR) procedures, while less invasive than surgery, involve significant radiation exposure.
  • Nurses in cardiac IVR experience high lens radiation doses, second only to physicians.
  • Accurate measurement of occupational eye dose for IVR nurses is essential but underexplored.

Purpose of the Study:

  • To determine the occupational eye dose for nurses in cardiac IVR using direct eye dosimeters.
  • To identify accurate methods for evaluating the lens radiation dose received by IVR nurses.
  • To explore correlations between lens dose, neck dose, and patient dose parameters.

Main Methods:

  • Direct eye dosimeters (measuring 3 mm dose equivalent) and neck dosimeters (0.07 mm dose equivalent) were used over six months.
  • Measurements were taken on both right and left sides of the eyes and neck for nurses in a catheterization laboratory.
  • The study analyzed relationships between eye doses, neck doses, and patient dose parameters (fluoroscopy time, air kerma).

Main Results:

  • A significant correlation was found between lens and neck doses, suggesting potential for estimating lens dose from neck badge readings.
  • The right eye dose was slightly higher than the left eye dose.
  • While patient dose parameters correlated with neck and lens doses, they did not accurately reflect individual nurse eye doses due to behavioral and procedural variations.

Conclusions:

  • Direct eye dosimeters are necessary for accurate measurement of occupational lens doses in IVR nurses, especially those with high exposure.
  • Estimating lens dose from neck badges or patient parameters alone is unreliable for individual assessment.
  • Wearing a lens dosimeter near the eyes is recommended for precise dose monitoring in IVR nurses.