期刊
RADIOLOGICAL PHYSICS AND TECHNOLOGY
卷 7, 期 1, 页码 158-166出版社
SPRINGER JAPAN KK
DOI: 10.1007/s12194-013-0246-x
关键词
Analysis of covariance; Computed tomography; Interventional radiology; Protective apron; Radiation protection; X-ray transmission rates
资金
- Hokkaido Radiological Technology Study from the Hokkaido meeting of the Japanese Society of Radiological Technology
- Akiyoshi Ohtsuka Fellowship of the Japanese Society of Radiological Technology
Few practical evaluation studies have been conducted on X-ray protective aprons in workplaces. We examined the effects of exchanging the protective apron type with regard to exposure reduction in experimental and practical fields, and discuss the effectiveness of X-ray protective aprons. Experimental field evaluations were performed by the measurement of the X-ray transmission rates of protective aprons. Practical field evaluations were performed by the estimation of the differences in the transit doses before and after the apron exchange. A 0.50-mm lead-equivalent-thick non-lead apron had the lowest transmission rate among the 7 protective aprons, but weighed 10.9 kg and was too heavy. The 0.25 and 0.35mm lead-equivalent-thick non-lead aprons differed little in the practical field of interventional radiology. The 0.35-mm lead apron had lower X-ray transmission rates and transit doses than the 0.25-mm lead-equivalent-thick non-lead apron, and each of these differences exceeded 8 % in the experimental field and approximately 0.15 mSv/month in the practical field of computed tomography (p< 0.01). Therefore, we concluded that the 0.25-mm lead-equivalentthick aprons and 0.35-mm lead apron are effective for interventional radiology operators and computed tomography nurses, respectively.
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