• 제목/요약/키워드: radiological science

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300인 미만 사업장에서 방사선사 근무환경 실태조사 (Research of the Working Conditions of Radiological Technologists in Workplaces with Less than 300 Employees)

  • 김영균;김연민
    • 대한방사선기술학회지:방사선기술과학
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    • 제46권1호
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    • pp.43-52
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    • 2023
  • The purpose of this study was to investigate the actual conditions related to the working environment of radiological technologist who is working in small or medium-sized hospitals or clinics. The results of this study were intended to improve the working environment of radiological technologist and care for patients. For data collection, a structured questionnaire was used as a research tool, and 838 women (52.4%) were used as a general characteristic of 1,598 people subject to this questionnaire. The annual salary of radiological technologists with less than one year experience was 33.76 million won, and the average annual salary of radiological technologists with more than 10 years of experience was 41.33 million won. It showed an increased of 1.84% per year. Among 1,540 radiological technologists, 879 workers were paid holiday work allowances, 340 workers did not, and 321 holiday workers work during the week. In addition, a total of 817 workers received overtime payment, of which 112 received overtime wage on a monthly basis regardless of the overtime hours. In addition, a total of 348 radiological technologists were not paid overtime wage, and 138 workers were included in the basis salary. There were no union in 85% of the them. According to the results of this study, the wages and working environment of radiological technologists in small or medium-sized hospitals or clinics were not appropriate. Therefore, the efforts of the radiological association and its members are necessary to provide a better working environment for radiological technologists. In addition, it is expected that this study will be used as basic data for the association's policy to improve the working environment of members who work in poor conditions.

Activity concentrations and radiological hazard assessments of 226Ra, 232Th, 40K, and 137Cs in soil samples obtained from the Dongnam Institute of Radiological & Medical Science, Korea

  • Jieun Lee;HyoJin Kim;Yong Uk Kye; Dong Yeon Lee;Wol Soon Jo;Chang Geun Lee;Jeung Kee Kim;Jeong-Hwa Baek;Yeong-Rok Kang
    • Nuclear Engineering and Technology
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    • 제55권7호
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    • pp.2388-2394
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    • 2023
  • The radioactivity concentration of environmental radionuclides was analyzed for soil and sand at eight locations within a radius of 255 m centered on the Dongnam Institute of Radiological & Medical Science (DIRAMS), Korea. The average activity concentrations of 40K, 137Cs, 226Ra, and 232Th were 661.1 Bq/kg-dry, 0.9 Bq/kg-dry, 21.9 Bq/kg-dry, and 11.1 Bq/kg-dry, respectively. The activity of 40K and 137Cs was lower than the 3-year (2017-2019) average reported by the Korea Institute of Nuclear Safety, respectively. Due to the nature of granite-rich soil, the radioactivity of 40K was 0.6-fold higher than in other countries, while 137Cs was in the normal fluctuation range (15-30 Bq/kg-dry) of the concentration of radioactive fallout from nuclear tests. The activity of 226Ra and 232Th was lower than in Korean soils reported by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR). The average activity concentrations of 232Th and 40K for the soil and sand samples from DIRAMS were within the range specified by UNSCEAR in 2000. The radium equivalent activity and internal and external hazard index values were below the recommended limits (1 mSv/y). These radionuclide concentration (226Ra, 232Th, 40K, and 137Cs) data can be used for regional environmental monitoring and ecological impact assessments of nuclear power plant accidents.

유방촬영용 X선 진단장치에서 IEC 60601-2-45 표준규격을 적용한 직선성 평가 (Evaluation of Linearity Air Kerma Applied to the IEC 60601-2-45 Standard in Mammographic X-ray)

  • 홍동희;정홍량;임청환;한범희;한상현;이상호;모은희;김기정;이미화;유인규
    • 디지털융복합연구
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    • 제12권3호
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    • pp.339-344
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    • 2014
  • 현재 우리나라 유방촬영장치의 정도관리 항목에는 국제규격에서 원하는 직선성이 빠져있다. 직선성은 방사선량 및 방사선질의 조정을 위한 요구사항이다. 본 연구에서는 유방촬영장치 5대를 대상으로 IEC 60601-2-45 규격에 맞는 직선성을 시험한 결과 모두 적합한 결과를 보였으며 앞으로 좀 더 발전된 정도관리를 위해서는 지속적인 측정관리가 필요하다.

방사선과 보건의료서비스에 대한 방사선사와 환자의 인식차이 및 개선방향 - 인천지역을 중심으로 - (Recognition difference and improvement direction of the radiological technologists and patient against medical service in department radiology - In-chon area in the object -)

  • 안성민;김성철
    • 대한방사선기술학회지:방사선기술과학
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    • 제29권2호
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    • pp.93-98
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    • 2006
  • 방사선과의 의료 서비스에 대한 환자의 만족도 평가 및 방사선사와 환자간의 인식차를 평가하여 방사선과 의료 서비스의 개선방향에 대해 알아보았다. 그 결과 대부분의 설문결과에"보통이다"이상의 답변을 하였으며, 부족한 부분으로는"접수수속의 복잡함, 검사 대기시간이 긴 점 및 환자 보호자의 방사선차폐 미실시"를 들었다. 또한 이 항목들은 환자뿐 아니라 방사선사들도 인식을 하고 있는 부분으로 환자에 대한 적극적인 배려가 필요하다고 사료된다. 그리고 방사선사와 환자의 인식차를 줄이기 위해서는 서비스를 제공하는 방사선사의 노력이 가장 필요하며, 이를 위해서는 정기적으로 환자관점에서의 의료서비스 만족도 조사를 통해 환자가 느끼는 서비스의 품질수준을 평가하고 만족도가 낮은 사항에 대해서는 만족도를 높이기 위한 개선책 마련에 힘써야 할 것이다.

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방사선사의 개인적 요인이 직무스트레스원에 영향을 주는 관련성 분석 (An Analysis of Relationship Between Personal Factors of Radiological Technologists and Job Stressors)

  • 정홍량;김정구;임청환;김명수;권대철;이만구
    • 대한방사선기술학회지:방사선기술과학
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    • 제28권1호
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    • pp.45-53
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    • 2005
  • 전국 16개 시도의 44개 3차 의료기관에 근무하는 방사선사의 직무환경에서 발생되는 스트레스원과 개인적인 관련요인을 분석한 결과는 다음과 같다. 근무환경에서 스트레스원에 영향을 주는 개인적인 관련요인은 직위, 직무만족도, 신체화 증상이고, 역할관련에서는 직무만족도와, 신체적 증상이며, 직무안정성에 있어서는 직위와 직무만족도가 많은 영향을 주는 요인으로 나타났다. 직무자율성에서 영향을 주는 요인은 연령, 직위, 직무만족도이고, 직무부담에서는 직무만족도, 행동적 증상이며, 직무갈등에서는 직장동료, 직속상관, 직무만족도, 신체적 증상이 영향을 많이 주고 있는 것으로 나타났다.

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3D 프린팅기술을 이용한 골밀도 정도관리 대퇴골 팬텀 제작 및 유용성 평가 (Evaluation of Usefulness and Fabrication of Femur Phantom on Quality Control of Bone Mineral Density Using 3D Printing Technology)

  • 홍다영;이정;이준호;문재원;오한샘;정유원;진성현;홍종민;이인자
    • 대한방사선기술학회지:방사선기술과학
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    • 제46권1호
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    • pp.1-8
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    • 2023
  • As the demand for bone mineral density testing increases in Korea, which is close to an aging society, it is necessary to evaluate the repeatability of equipment such as femur phantom other than l-spine for more accurate diagnosis. However, in clinical practice, it is often not possible to proceed such evaluation due to insufficient quality control conditions. Therefore, this study is to evaluate the usefulness of the femur phantom after fabricating the same using 3D printing technology. The femur phantom was output using GlowFill filament and FDM 3D printing type. Each phantom was repeatedly scaned 20 times to compare whether the existing l-spine phantom and the fabricated femur phantom were suitable as a phantom for quality control. Each time the seven researchers took three times, the location of the femur phantom was readjusted, and then scanned to confirm the error between the researchers. As a result of conducting repeatability evaluation using femur phantom, the coefficient of variation rate was 2%, which was within the minimum precision tolerance of 2.5%. The reproducibility between the researcher was also found to be suitable as the average coefficient of variation was 0.031 and the coefficient of variation rate was 3.1%, which was within the minimum precision error range of 5%. In conclusion, it is considered that the prospective attitude and usefulness of the femur phantom fabricated by 3D printing in clinical practice will be sufficient.

대한민국 영남지역 해수욕장의 방사능 농도 분석 (Analysis of Radioactivity Concentration at Beaches in the Yeongnam Region, Republic of Korea)

  • 안정호;강진구;김준수;김보연;백자영;설민수;조슬기;김예은;이유민;최정수;조재환
    • 한국방사선학회논문지
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    • 제17권7호
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    • pp.1197-1205
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    • 2023
  • 본 연구에서는 영남지역 해수욕장의 모래 시료 중에 함유되어 있는 방사능 농도를 측정하였다. 해수욕장에서 채취한 모래 표본은 영남지역의 유명해수욕장 8곳을 대상으로 선정하였다. 모래 표본을 반도체검출기인 고순도게르마늄검출기(HPGe)에 넣어 다채널분석기(MCA)를 이용한 정밀 감마 방사성핵종 분석을 실시했다. 방사선핵종의 농도를 측정하기 위해 측정 시간을 8,000 초로 설정하여 스펙트럼 파일을 얻어서 감마 방사성핵종의 농도를 분석하였다. 연구결과 8곳 해변 모두 TI-208의 방사능이 가장 높았다. 결론적으로 영남지역 해수욕장 모래표본에서 검출된 방사성핵종은 자연 방사성핵종이지만 인체 내부에 영향을 미칠 수 있다. 따라서 지속적으로 조사할 필요가 있다.

Balloon Bronchoplasty for the Treatment of Bronchial Stenosis After Lung Transplantation: A Single-Center 10-Year Experience

  • Dong Kyu Kim;Joon Ho Kwon;Kichang Han;Man-Deuk Kim;Gyoung Min Kim;Sungmo Moon;Juil Park;Jong Yun Won;Hyung Cheol Kim;Sei Hyun Chun;Seung Myeon Choi
    • Korean Journal of Radiology
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    • 제24권5호
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    • pp.424-433
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    • 2023
  • Objective: To assess the safety and efficacy of balloon dilatation under dual guidance using fluoroscopy and bronchoscopy for treating bronchial stenosis following lung transplantation (LT), and to elucidate the factors associated with patency after the procedure. Materials and Methods: From September, 2012, to April, 2021, 50 patients (mean age ± standard deviation, 54.4 ± 12.2 years) with bronchial stenosis among 361 recipients of LT were retrospectively analyzed. The safety of balloon dilatation was assessed by evaluating procedure-related complications. Efficacy was assessed by evaluating the technical success, primary patency, and secondary patency. Primary and secondary cumulative patency rates were calculated using the Kaplan-Meier method. The factors associated with patency after the procedure were evaluated using multivariable Cox hazard proportional regression analysis. Results: In total, 65 bronchi were treated with balloon dilatation in 50 patients. The total number of treatment sessions was 277 and the technical success rate was 99.3% (275/277 sessions). No major procedure-related complications were noted. During the mean follow-up period of 34.6 ± 30.8 months, primary patency was achieved in 12 of 65 bronchi (18.5%). However, the patency rate improved to 76.9% (50 of 65 bronchi) after repeated balloon dilatation (secondary patency). The 6-month, 1-year, 3-year, and 5-year secondary patency rates were 95.4%, 90.8%, 83.1%, and 78.5%, respectively. The presence of clinical symptoms was a significant prognostic factor associated with reduced primary patency (adjusted hazard ratio [HR], 0.465; 95% confidence interval [CI], 0.220-0.987). Early-stage treatment ≤ 6 months (adjusted HR, 3.588; 95% CI, 1.093-11.780) and prolonged balloon dilatation > 5 min (adjusted HR, 3.285; 95% CI, 1.018-10.598) were associated with significantly higher secondary patency. Conclusion: Repeated balloon dilatation was determined to be safe and effective for treating bronchial stenosis following LT. Early-stage treatment and prolonged balloon dilatation could significantly promote long-term patency.