A correlation study of eye lens dose and personal dose equivalent for interventional cardiologists

Abstract Neurovascular interventional radiology (neuro-IR) procedures tend to require an extended fluoroscopic exposure time and repeated digital subtraction angiography. To evaluate the actual measurement of eye lens dose using a direct eye dosemeter in neuro-IR physicians is important. Direct dosimetry using the DOSIRIS™ (IRSN, France) [3 mm dose equivalent, Hp(3)] was performed on 86 cases. Additionally, a neck personal dosemeter (glass badge) [0.07 mm dose equivalent, Hp(0.07)] was worn outside the protective apron to the left of the neck. The average doses per case of neuro-IR physicians were 0.04 mSv/case and 0.02 mSv/case, outside and inside the radiation protection glasses, respectively. The protective effect of radiation protection glasses was approximately 60%. The physician eye lens dose tended to be overestimated by the neck glass badge measurements. A correct evaluation of the lens dose [Hp(3)] using an eye dosemeter such as DOSIRIS™ is needed for neuro-IR physicians.

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Assessment Of Whole Body, Skin and Eye Lens Doses of the Interventional Radiologists At Selected Hospitals in Iran

Radiation Protection Dosimetry ◽

10.1093/rpd/ncab036 ◽

2021 ◽

Author(s):

Z Danaei ◽

S M Hosseini Pooya ◽

E Jazayeri Gharehbagh ◽

S Baradaran

Keyword(s):

The Body ◽

Clinical Staff ◽

Whole Body ◽

Eye Lens ◽

Dose Equivalent ◽

Annual Dose ◽

Occupational Groups ◽

Lead Apron ◽

Eye Lens Dose ◽

Measured Dose

Abstract High radiation doses to the body may lead to the stochastic/deterministic effects of ionizing radiation on the critical organs as well as causing the cataract in eye lens of the clinical staff in interventional radiology. In this study, the received doses of the eyes, skin and whole body of 38 clinical staff including physicians, residents, nurses and radiotechnologists in cardiac angiography departments in three selected hospitals were assessed using personal dosemeters during two bimonthly dosimetry periods. Moreover, the correlation coefficients among the measured dose components including eye lens dose, skin dose and whole body dose equivalent in both area of under and over their lead-apron were calculated for all these occupational groups. The results show that the occupational annual dose values of the clinical staff are below the annual dose limits recommended by International Commission on Radiation Protection. Furthermore, among the measured dose components, the highest correlation coefficient value was obtained between the eye lens dose and personal dose equivalent measured over the lead apron for all the occupational groups.

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Applicability of a Commercially Available Active Extremity Dose-Rate Meter to Eye Lens Dose Monitoring

Radiation Protection Dosimetry ◽

10.1093/rpd/ncab009 ◽

2021 ◽

Author(s):

Munehiko Kowatari ◽

Hayo Zutz ◽

Oliver Hupe

Keyword(s):

Complete Characterization ◽

Low Energy ◽

Eye Lens ◽

Dose Equivalent ◽

Energy Photon ◽

Eye Lens Dose ◽

Dose Monitoring ◽

Area Monitoring ◽

Additional Monitoring

Abstract A commercially available active extremity dosemeter is a promising candidate for medical staff aid individual monitoring of the eye lens. We investigated the applicability of the newly developed active extremity dosemeter, which uses a low-energy photon probe, to eye lens dose monitoring by performing a complete characterization of the dosemeters. Performance tests revealed that the active extremity dosemeter would overestimate personal dose equivalent, Hp(3), when the probe is worn close to the lens of the eye of a medial worker without any improvement in the response. Introducing an appropriate filter into the probe for low-energy photon has proven to improve the response. The dosemeter then satisfies the criteria of the personal dosemeter for eye lens dosimetry and can be applicable to individual monitoring of eye lens dose. This article also discusses the applicability of the dosemeter to area monitoring for decision making regarding additional monitoring of the eye lens and the extremities.

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