• 대한방사선기술학회지:방사선기술과학
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• 제42권6호
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• pp.469-476
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• 2019

The purpose of this study examines the education, knowledge and behavior of radiation safety management among dental workers and compares the education, knowledge and behavior between dental hygienist group and other occupational groups. This study was conducted from November 2nd to November14th, 2019. The survey was conducted on dental workers(dental hygienists, nursing, assistants, coordinators, etc.) who worked in dental hospitals and clinics in Busan area. The tool of this study was modified and adapted to the clinical setting based on the questionnaire. Radiation safety education has 39 dental hygienists who had more education than non-dental hygienists (p=0.286). The most common types of radiation safety education were self-education which usually performed by dentistry, followed by conservative education and others. The average of radiation attitudes, knowledge and behaviors was higher in the dental hygienist group then in the non-dental hygienist group. On the item-specific behavior among employees, the question of 'the radiation should be shielded according to the menstrual cycle or pregnancy of the woman of childbearing' was significant (p<0.05). On the item-specific knowledge between occupations, the question of 'the intensity of X-rays decreases over distance' and 'the individual exposure can be measured by TLD badge or film badge' was significant (p<0.05). Taken together, these results indicate that the dental hygienist group is more concerned about radiation safety and that the dental hygienist group is receiving more radiation safety management training. However, if there is a low level of 'has experienced' in the presence or absence of safety management education, it is difficult to train radiation safety management in dentistry. Therefore, it is considered that dentists should be trained in radiation safety management periodically to pay attention to radiation safety accidents.

• 한국치위생학회지
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• 제14권6호
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• pp.849-857
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• 2014

Objectives: The aim of the study was to investigate the knowledge and attitude toward radiation safety management in dental clinic worker. Methods: A self-reported questionnaire was filled out by 294 dental clinic workers in dental hospitals and clinics in Gwangju and Jeonnam from February 17 to March 30, 2014. The questionnaire consisted of general characteristics of radiation safety(8 questions), knowledge of radiation safety(15 questions), and attitudes of radiation safety(16 questions). The survey was done by Likert 5 scale method. Results: In completion of the radiodontia courses, 84.0% of the learners were female workers. 88.0% of the learners took the theoretical and practical courses. Those who work in the university dental hospital accounted for 87.1% and those in dental clinics accounted for 83.2%. Majority of the workers took on Leaden protective clothing in order to protect the thyroid gland. Male workers had more knowledge toward the radiation safety management than the female workers. The attitude toward the radiation safety management revealed the significant differences between age, gender, academic careers, license, clinical careers and the mean number of patients per day(p<0.05). Conclusions: The radiation safety management is very important in dental clinical workers and it is necessary to enhance the attitude toward the radiation safety through continuous education.

• 치위생과학회지
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• 제12권4호
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• pp.335-341
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• 2012

본 연구는 방사선안전관리에 행위에 영향을 미치는 요인을 연구하여 방사선 안전관리 행위수준을 향상시키고자 대구, 부산, 울산광역시와 경상남북도에 위치한 의료기관에 근무하는 치과위생사를 대상으로 2011년 7월 18부터 8월 26일까지 설문조사한 후 다음과 같은 결론을 얻었다. 1. 방사선 안전관리 지식에서는 근무기관(p<.001), 방어시설 현황(p<.006), 안전관리교육 필요성(p<.012)에 따라 유의한 차이가 있었다. 2. 방사선 안전관리 태도에서는 연령(p<.014), 근무기관(p<.003), 근무경력(p<.009), 교육수준(p<.002), 방어시설 현황(p<.015), 안전관리교육 필요성(p<.005), 교육참여 의사(p<.036)에 따라 유의한 차이가 있었다. 3. 방사선 안전관리 행위에서는 안전관리교육 경험(p<.068), 피폭선량측정(p<.010), 방어시설 현황(p<.001)에 따라 유의한 차이가 있었다. 4. 방사선 안전관리 지식과 태도, 방사선 안전관리 태도와 행위는 통계적으로 유의한 양의 상관관계를 보였다(p<.05). 5. 방사선 안전관리 행위에 영향을 주는 요인으로 정기적 피폭선량 측정여부(p<.046)와 방어시설 현황(p<.001)이었다. 결론적으로 치과 방사선 촬영실의 방어시설을 완벽하게 갖추고, 치과위생사 개개인에게 정기적인 피폭선량을 측정하여 경각심을 일깨워 주어 방사선 안전관리 행위수준을 높이는 것이 중요하다고 생각된다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권7호
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• pp.2613-2617
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• 2015

Radiation induced lung injury has long been considered a treatment limiting factor for patients requiring thoracic radiation. This radiation induced lung injury happens early as well as late. Radiation induced lung injury can occur in two phases viz. early (< 6 months) when it is called radiation pneumonitis and late (>6 months) when it is called radiation induced lung fibrosis. There are multiple factors that can be patient, disease or treatment related that predict the incidence and severity of radiation pneumonitis. Radiation induced damage to the type I pneumocytes is the triggering factor to initiate such reactions. Over the years, radiation therapy has witnessed a paradigm shift in radiation planning and delivery and successfully reduced the incidence of lung injury. Radiation pneumonitis is usually a diagnosis of exclusion. Steroids, ACE inhibitors and pentoxyphylline constitute the cornerstone of therapy. Radiation induced lung fibrosis is another challenging aspect. The pathophysiology of radiation fibrosis includes continuing inflammation and microvascular changes due to pro-angiogenic and profibrogenic stimuli resembling those in adult bronchiectasis. General supportive management, mobilization of airway secretions, anti-inflammatory therapy and management of acute exacerbations remains the treatment option. Radiation induced lung injury is an inevitable accompaniment of thoracic radiation.

• 한국산학기술학회논문지
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• 제18권11호
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• pp.367-373
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• 2017

온라인 투 오프라인 서비스란 오프라인 및 온라인의 유기적 연계를 통한 효율적인 운용방법으로, 현재 원자력관계 사업장에서 방사선작업종사자의 교육, 건강검진, 피폭관리 등이 오프라인과 온라인이 분리되어있는 실정이다. 이에 사업장 내 방사선 종사자 관리 프로그램을 개발하여 온라인과 오프라인을 연계하고자 하였다. 서면상의 종사자관리시스템을 전산프로그램으로 개발하여 대전 일개 대학병원의 작업종사자 및 안전관리자 대상으로 적용 및 설문을 통해 수정방향을 정하고자 하였다. 설문결과 프로그램을 이용한 결과가 안전관리 의식 고취 및 업무의 편의성이 증대되는 것을 기대할 수 있었다. 또한 방사선 작업종사자뿐만 아니라 방사선 관계종사자의 확대에 따른 요구도 발생하였다. 방사선 종사자 관리 프로그램의 범용성을 위한 사업장 별 특성에 대한 의견수렴이 반드시 필요할 것이라고 사료된다. 이를 통해 향후 사업장 별 특징을 조합하여 사업장과 관리감독기관, 유관기관의 네트워크 연결을 통해 실시간 방사선 안전관리 및 업무개선을 기대할 수 있을 것이다. 또한 방사선 종사자 관리 프로그램을 통해 선 순환 구조를 형성한다면, 방사선 안전관리의 발전을 기대할 수 있을 것이다.

• 의료법학
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• 제23권2호
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• pp.97-118
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• 2022

의료기관에서 진단용 방사선의 이용은 매년 급속히 증가하고 있다. 또한 집단 유효선량도 매년 증가하고 있다. 그러므로 국민에 대한 방사선 피폭을 최대한 적게 낮추어야 하며, 진단용 방사선 안전 관리를 효율적으로 할 수 있도록 제도적으로 확립하여야 한다. 이에 진단용 방사선 안전관리에 대한 법적 규율이 법령체계상 맞지 않거나 내용에 있어서 현실과 괴리가 없는지 문제점을 파악하고 그에 대한 개선 방향을 모색하여 다음과 같은 결과를 얻었다. 첫째, 「의료법」에는 검사·측정기관에 대한 근거 규정도 없고 행정처분에 대한 위임규정도 없다. 그러므로 「의료법」 에 검사·측정기관에 대한 근거 규정과 이들 기관들에 대한 행정처분의 근거 규정을 두어 법적 정당성을 확보해야 한다. 둘째, 진단용 방사선 특수의료장비에 대해서는 「특수의료장비의 설치 및 운영에 관한 규칙」과 「진단용 방사선 발생장치 안전관리에 관한 규칙」을 통합하여 신고 등 행정적 절차를 일원화해야 한다. 셋째, 「진단용 방사선 발생장치 안전관리에 관한 규칙」 상 진단용 방사선 안전관리기준을 위반한 경우에 행정처분 등 제재가 미비된 사항들을 보완할 필요가 있다. 넷째, 의료기관에서 이용하는 진단용 방사선과 치료용 방사선에 대하여 「의료법」과 「원자력안전법」의 이원적인 법령 체계로 규율하는 것은 진단용 방사선 안전관리에 있어서도 효율적이지 못하다. 따라서 진단용 방사선뿐만 아니라 치료용 방사선, 핵의학을 포함한 의료용 방사선 전체를 「의료법」 체계에서 통일하여 규율하는 것이 필요하다고 본다.

• 한국의학물리학회지:의학물리
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• 제32권4호
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• pp.83-91
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• 2021

Various types of high-precision radiotherapy, such as intensity-modulated radiation therapy (IMRT), tomotherapy (Tomo), and stereotactic body radiation therapy have been available since 1997. After being covered by insurance in 2015, the number of IMRT cases rapidly increased 18-fold from 2011 to 2018 in Korea. IMRT, which uses a high-beam irradiation monitor unit, requires higher shielding conditions than conventional radiation treatments. However, to date, research on the shielding of facilities using IMRT and the current understanding of its status are insufficient, and detailed safety regulation procedures have not been established. This study investigated the recommended criteria for the shielding evaluation of facilities using medical linear accelerators (LINACs), including 1) the current status of safety management regulations and systems in domestic and international facilities using medical LINACs and 2) the current status of the recommended standards for safety management in domestic and international facilities using medical LINACs. It is necessary to develop and introduce a safety management system for facilities using LINACs for clinical applications that is suitable for the domestic medical environment and corresponds to the safety management systems for LINACs used overseas.

• Radiation Oncology Journal
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• 제30권1호
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• pp.43-48
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• 2012

Purpose: To develop the dose volume histogram (DVH) management software which guides the evaluation of radiotherapy (RT) plan of a new case according to the biological consequences of the DVHs from the previously treated patients. Materials and Methods: We determined the radiation pneumonitis (RP) as an biological response parameter in order to develop DVH management software. We retrospectively reviewed the medical records of lung cancer patients treated with curative 3-dimensional conformal radiation therapy (3D-CRT). The biological event was defined as RP of the Radiation Therapy Oncology Group (RTOG) grade III or more. Results: The DVH management software consisted of three parts (pre-existing DVH database, graphical tool, and $Pinnacle^3$ script). The pre-existing DVH data were retrieved from 128 patients. RP events were tagged to the specific DVH data through retrospective review of patients' medical records. The graphical tool was developed to present the complication histogram derived from the preexisting database (DVH and RP) and was implemented into the radiation treatment planning (RTP) system, $Pinnacle^3$ v8.0 (Phillips Healthcare). The software was designed for the pre-existing database to be updated easily by tagging the specific DVH data with the new incidence of RP events at the time of patients' follow-up. Conclusion: We developed the DVH management software as an effective tool to incorporate the phenomenological consequences derived from the pre-existing database in the evaluation of a new RT plan. It can be used not only for lung cancer patients but also for the other disease site with different toxicity parameters.

• 대한방사선기술학회지:방사선기술과학
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• 제40권1호
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• pp.101-108
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• 2017

본 연구는 의료기관에 종사하는 방사선작업종사자들의 방사선/능 방어에 대한 안전관리 인식과 행동조사에 관한 연구를 시행하였다. 자료 수집은 구조화된 설문지를 사용하여 의료기관에 근무하는 방사선작업종사자 267명을 대상으로 하였다. 그 결과, 40대, 50대 그룹과, 고학력 그룹에서 방사선 안전관리 인식도와 수행도가 높은 것으로 분석되었다. 방사선 안전관리 지식에 따른 분석은 "매우 잘 알고 있다" 그룹에서 인식도와 수행도 점수가 높은 것으로 분석되었다. 안전관리 노력 정도에 따른 분석은 "다양한 교육을 받거나 책을 통해 안전관리 내용을 공부하고 있다" 그룹에서 높은 인식척도와 수행척도를 나타냈다. 하부요인들간 상관관계의 경우 종사자 개인측면의 인식도와 환자 및 환자보호자 측면의 인식도에서 가장 높은 정적상관을 나타냈다. 따라서 의료기관에 근무하는 방사선작업종사자들의 다양한 경로를 통한 지속적인 방사선 안전관리 교육 습득을 통해 종사자 및 환자 그리고 환자보호자에 대한 방사선 안전관리가 이루어져야 할 것으로 사료된다.

• Journal of Radiation Protection and Research
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• 제42권4호
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• pp.222-228
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• 2017

Background: On June 18, 2017, Korea's first commercial nuclear reactor, the Kori Nuclear Power Plant No. 1, was permanently suspended, and the capacity of nuclear power generation facilities will be adjusted according to the governments denuclearization policy. In these circumstances, it is necessary to assess the quality of radiation safety management in nuclear power plants in Korea by evaluating the radiation dose associated with them. Materials and Methods: The average annual radiation dose per unit, the annual radiation dose per person, and the annual dose distribution were analyzed using the radiation dose database of nuclear reactors for the last 5 years. The results of our analysis were compared to the specifications of the Nuclear Safety Act and Medical Law in Korea. Results and Discussion: The annual average per unit radiation dose of global major nuclear power generation was 720 man-mSv, while that of Korea's nuclear power plants was 374 manmSv. No workers exceeded 50 mSv per year or 100 mSv in 5 years. The individual radiation dose according to occupational exposure was 0.59 mSv for nuclear workers, 1.77 mSv for non-destructive workers, and 0.8 mSv for diagnostic radiologists. Conclusion: The radiation safety management of nuclear power plants in Korea has achieved the best outcomes worldwide, which is considered to be the result of the as-low-as-reasonably-achievable (ALARA) approach and strict radiation safety management. Moreover, the occupational exposures were also very low.