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

Sato, Toshimitsu; Eguchi, Yoichi; Yamazaki, Chika; Hino, Takanobu; Saida, Toshikazu; Chida, Koichi

doi:10.3390/bioengineering9080354

Cited by 10 publications

(4 citation statements)

References 60 publications

(61 reference statements)

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“…Although IR procedures are less invasive than surgery, radiation may injure the eyes of IR physicians and the patient's skin [39][40][41][42][43][44][45][46][47]. Eye lens doses must be monitored, x-ray doses optimized, and protective arrangements made [48][49][50][51][52][53][54][55][56][57]. Here, we compared the protection afforded by over-glasses-type and regular eyewear of 0.07 mm lead-equivalent thickness.…”

Section: Discussionmentioning

confidence: 99%

Comparison of shielding effects of over-glasses-type and regular eyewear in terms of occupational eye dose reduction

Shindo,

Ohno,

Yamamoto

et al. 2024

J. Radiol. Prot.

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Given the new recommendations for occupational eye lens doses, various lead glasses have been used to reduce irradiation of interventional radiologists. However, the protection afforded by lead glasses over prescription glasses (thus over-glasses-type eyewear) has not been considered in detail. We used a phantom to compare the protective effects of such eyewear and regular eyewear of 0.07-mm lead-equivalent thickness. The shielding rates behind the eyewear and on the surface of the left eye of an anthropomorphic phantom were calculated. The left eye of the phantom was irradiated at various angles and the shielding effects were evaluated. We measured the radiation dose to the left side of the phantom using RPLDs attached to the left eye and to the surface/back of the left eyewear. Over-glasses-type eyewear afforded good protection against X-rays from the left and below; the average shielding rates on the surface of the left eye ranged from 0.70–0.72. In clinical settings, scattered radiation is incident on physicians’ eyes from the left and below, and through any gap in lead glasses. Over-glasses-type eyewear afforded better protection than regular eyewear of the same lead-equivalent thickness at the irradiation angles of concern in clinical settings. Although clinical evaluation is needed, we suggest over-glasses-type Pb eyewear even for physicians who do not wear prescription glasses.

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Section: Discussionmentioning

confidence: 99%

Comparison of shielding effects of over-glasses-type and regular eyewear in terms of occupational eye dose reduction

Shindo,

Ohno,

Yamamoto

et al. 2024

J. Radiol. Prot.

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“…In general, IVR physicians have a higher radiation dose on the left than right side, because it is nearer to the source of scattered radiation [ 60 , 61 , 62 , 63 , 64 , 65 ]; therefore, IVR physicians wear the lens dosimeter near the left eye.…”

Section: Discussionmentioning

confidence: 99%

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

Yamada,

Haga,

Sota

et al. 2023

Diagnostics

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Although interventional radiology (IVR) is preferred over surgical procedures because it is less invasive, it results in increased radiation exposure due to long fluoroscopy times and the need for frequent imaging. Nurses engaged in cardiac IVR receive the highest lens radiation doses among medical workers, after physicians. Hence, it is important to measure the lens exposure of IVR nurses accurately. Very few studies have evaluated IVR nurse lens doses using direct dosimeters. This study was conducted using direct eye dosimeters to determine the occupational eye dose of nurses engaged in cardiac IVR, and to identify simple and accurate methods to evaluate the lens dose received by nurses. Over 6 months, in a catheterization laboratory, we measured the occupational dose to the eyes (3 mm dose equivalent) and neck (0.07 mm dose equivalent) of nurses on the right and left sides. We investigated the relationship between lens and neck doses, and found a significant correlation. Hence, it may be possible to estimate the lens dose from the neck badge dose. We also evaluated the appropriate position (left or right) of eye dosimeters for IVR nurses. Although there was little difference between the mean doses to the right and left eyes, that to the right eye was slightly higher. In addition, we investigated whether it is possible to estimate doses received by IVR nurses from patient dose parameters. There were significant correlations between the measured doses to the neck and lens, and the patient dose parameters (fluoroscopy time and air kerma), implying that these parameters could be used to estimate the lens dose. However, it may be difficult to determine the lens dose of IVR nurses accurately from neck badges or patient dose parameters because of variation in the behaviors of nurses and the procedure type. Therefore, neck doses and patient dose parameters do not correlate well with the radiation eye doses of individual IVR nurses measured by personal eye dosimeters. For IVR nurses with higher eye doses, more accurate measurement of the radiation doses is required. We recommend that a lens dosimeter be worn near the eyes to measure the lens dose to IVR nurses accurately, especially those exposed to relatively high doses.

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

Cited by 10 publications

References 60 publications

Comparison of shielding effects of over-glasses-type and regular eyewear in terms of occupational eye dose reduction

Comparison of shielding effects of over-glasses-type and regular eyewear in terms of occupational eye dose reduction

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

Awareness of Medical Radiologic Technologists of Ionizing Radiation and Radiation Protection

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