What are useful methods to reduce occupational radiation exposure among radiological medical workers, especially for interventional radiology personnel?

Chida, Koichi

doi:10.1007/s12194-022-00660-8

Cited by 42 publications

(19 citation statements)

References 143 publications

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“…It is crucial to evaluate exposure of patients and healthcare workers to radiation during radiological examinations, especially IVR [ 47 , 48 , 49 , 50 , 51 , 52 ]. Despite the importance of protecting IVR physicians from occupational radiation exposure, no ideal radiation shield exists [ 53 , 54 , 55 , 56 ]. Although many devices protecting against radiation are available, none offer complete protection, especially for IVR physicians [ 54 , 57 , 58 ].…”

Section: Discussionmentioning

confidence: 99%

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Development of a New Radiation Shield for the Face and Neck of IVR Physicians

et al. 2022

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Interventional radiology (IVR) procedures are associated with increased radiation exposure and injury risk. Furthermore, radiation eye injury (i.e., cataract) in IVR staff have also been reported. It is crucial to protect the eyes of IVR physicians from X-ray radiation exposure. Many IVR physicians use protective Pb eyeglasses to reduce occupational eye exposure. However, the shielding effects of Pb eyeglasses are inadequate. We developed a novel shield for the face (including eyes) of IVR physicians. The novel shield consists of a neck and face guard (0.25 mm Pb-equivalent rubber sheet, nonlead protective sheet). The face shield is positioned on the left side of the IVR physician. We assessed the shielding effects of the novel shield using a phantom in the IVR X-ray system; a radiophotoluminescence dosimeter was used to measure the radiation exposure. In this phantom study, the effectiveness of the novel device for protecting against radiation was greater than 80% in almost all measurement situations, including in terms of eye lens exposure. A large amount of scattered radiation reaches the left side of IVR physicians. The novel radiation shield effectively protects the left side of the physician from this scattered radiation. Thus, the device can be used to protect the face and eyes of IVR physicians from occupational radiation exposure. The novel device will be useful for protecting the face (including eyes) of IVR physicians from radiation, and thus could reduce the rate of radiation injury. Based on the positive results of this phantom study, we plan to perform a clinical experiment to further test the utility of this novel radiation shield for IVR physicians.

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Section: Discussionmentioning

confidence: 99%

“…Despite the importance of protecting IVR physicians from occupational radiation exposure, no ideal radiation shield exists [ 53 , 54 , 55 , 56 ]. Although many devices protecting against radiation are available, none offer complete protection, especially for IVR physicians [ 54 , 57 , 58 ].…”

Section: Discussionmentioning

confidence: 99%

Development of a New Radiation Shield for the Face and Neck of IVR Physicians

et al. 2022

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“…In Japan, the first diagnostic reference level was presented in 2015, and awareness of radiation protection among medical radiation workers seems to have increased [61][62][63]. Furthermore, in addition to managing patient radiation exposure, medical radiologic technologists play an important role in managing occupational exposure protection [64][65][66][67][68][69][70]. We consider that it is essential for radiation safety that medical radiologic technologists are well-versed in radiation protection.…”

Section: Discussionmentioning

confidence: 99%

Awareness of Medical Radiologic Technologists of Ionizing Radiation and Radiation Protection

Yashima

Chida

2022

IJERPH

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Japanese people experienced the Hiroshima and Nagasaki atomic bombings, the Japan Nuclear Fuel Conversion Co. criticality accident, it was found that many human resources are needed to respond to residents’ concerns about disaster exposure in the event of a radiation disaster. Medical radiologic technologists learn about radiation from the time of their training, and are engaged in routine radiographic work, examination explanations, medical exposure counseling, and radiation protection of staff. By learning about nuclear disasters and counseling, we believe they can address residents’ concerns. In order to identify items needed for training, we examined the perceptions of medical radiologic technologists in the case of different specialties, modalities and radiation doses. In 2016, 5 years after the Fukushima Daiichi nuclear power plant accident, we conducted a survey of 57 medical radiologic technologists at two medical facilities with different specialties and work contents to investigate their attitudes toward radiation. 42 participants answered questions regarding sex, age group, presence of children, health effects of radiation exposure, radiation control, generation of X rays by diagnostic X ray equipment, and radiation related units. In a comparison of 38 items other than demographic data, 14 showed no significant differences and 24 showed significant differences. This study found that perceptions of radiation were different among radiology technologists at facilities with different specialties. The survey suggested the possibility of identifying needed training items and providing effective training.

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“…Interventional radiology (IVR) plays a major role in disease diagnosis and treatment. IVR is performed using X-ray imaging equipment, catheters, and needles [ 11 , 12 , 13 , 14 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a New Real-Time Dosimeter Sensor for Interventional Radiology Staff

Hattori

Inaba

Kato

et al. 2023

Sensors

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In 2011, the International Commission on Radiological Protection (ICRP) recommended a significant reduction in the lens-equivalent radiation dose limit, thus from an average of 150 to 20 mSv/year over 5 years. In recent years, the occupational dose has been rising with the increased sophistication of interventional radiology (IVR); management of IVR staff radiation doses has become more important, making real-time radiation monitoring of such staff desirable. Recently, the i3 real-time occupational exposure monitoring system (based on RaySafeTM) has replaced the conventional i2 system. Here, we compared the i2 and i3 systems in terms of sensitivity (batch uniformity), tube-voltage dependency, dose linearity, dose-rate dependency, and angle dependency. The sensitivity difference (batch uniformity) was approximately 5%, and the tube-voltage dependency was <±20% between 50 and 110 kV. Dose linearity was good (R2 = 1.00); a slight dose-rate dependency (~20%) was evident at very high dose rates (250 mGy/h). The i3 dosimeter showed better performance for the lower radiation detection limit compared with the i2 system. The horizontal and vertical angle dependencies of i3 were superior to those of i2. Thus, i3 sensitivity was higher over a wider angle range compared with i2, aiding the measurement of scattered radiation. Unlike the i2 sensor, the influence of backscattered radiation (i.e., radiation from an angle of 180°) was negligible. Therefore, the i3 system may be more appropriate in areas affected by backscatter. In the future, i3 will facilitate real-time dosimetry and dose management during IVR and other applications.

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What are useful methods to reduce occupational radiation exposure among radiological medical workers, especially for interventional radiology personnel?

Cited by 42 publications

References 143 publications

Development of a New Radiation Shield for the Face and Neck of IVR Physicians

Development of a New Radiation Shield for the Face and Neck of IVR Physicians

Awareness of Medical Radiologic Technologists of Ionizing Radiation and Radiation Protection

Evaluation of a New Real-Time Dosimeter Sensor for Interventional Radiology Staff

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