지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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초록· 키워드
오류제보하기
The purpose of this study was to suggest strategies for the appropriateness of griduse and reduction of exposure dose by conducting a survey on the use of a digital radiography(DR) system in 30 general hospitals located in the capital area. With the goal of using its resultsas basic data in the future, this study measured the change in dose depending on use or no use ofa grid. The study method was to conduct a survey on the possession of DR equipment and griduse for examination of the extremities among 30 general hospitals in the capital area. In regardto exposure dose, acryl phantom was used to measure the change in dose depending on use or nouse of a grid. The results of the survey questionnaire showed that a grid was used for examinationin 97 out of 135 total pieces of equipment, while a grid was not used in the remaining 38 piecesof equipment. With respect to dose evaluation, the dose for each body part depending on use orno use of a grid was measured at 81.50±9.01 μGy and 129.80±0.26 μGy in the acryl phantomthickness of 2.54 cm+1.0 mmAl, 67.08±0.22 μGy and 110.94±34.66 μGy in the thickness of 5.08cm+1.0 mmAl, and 297.99±0.63 μGy and 567.39±1.58 μGy in the thickness of 7.62 cm+2.0mmAl. In conclusion, there was a difference of about two-fold or more in the dose depending onuse or no use of a grid.
목차
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참고문헌 (14)
참고문헌 신청
Axelsson B / 2000 / A comparison of analogue and digital techniques in upper gastrointestinal examinations : absorbed dose and diagnostic quality of the images / Eur. Radiol 10:1351~1354
FDA / Technical Electronic Product Radiation Safety Standards Committee
홍성일 / 2009 / SNR and PSNR measurements and analysis of median filtering for the removal of impulse noise from CR imaging / International Journal of Contents 5(4):7~12
IAEA / 1996 / IAEA Safety series No. 115 / International Atomic Energy Agency
ICRP / 2003 / Managing Patient Dose in Digital. International Commission on Radiological Protection publication 93
FDA / Technical Electronic Product Radiation Safety Standards Committee
홍성일 / 2009 / SNR and PSNR measurements and analysis of median filtering for the removal of impulse noise from CR imaging / International Journal of Contents 5(4):7~12
IAEA / 1996 / IAEA Safety series No. 115 / International Atomic Energy Agency
ICRP / 2003 / Managing Patient Dose in Digital. International Commission on Radiological Protection publication 93
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