scholarly journals Application of a tungsten apron for occupational radiation exposure in nursing care of children with neuroblastoma during 131I-meta-iodo-benzyl-guanidine therapy

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Yuka Taniguchi ◽  
Hiroshi Wakabayashi ◽  
Hiroto Yoneyama ◽  
Zhuoqing Chen ◽  
Kei Morino ◽  
...  
Keyword(s):  
Patient Care ◽  
Radiation Exposure ◽  
Gamma Rays ◽  
Exposure Dose ◽  
Occupational Radiation Exposure ◽  
Meta Iodo Benzyl Guanidine ◽  
Mibg Therapy ◽  
Occupational Radiation ◽  
Radiation Exposure Dose ◽  
Shielding Effects

AbstractThe use of effective shielding materials against radiation is important among medical staff in nuclear medicine. Hence, the current study investigated the shielding effects of a commercially available tungsten apron using gamma ray measuring instruments. Further, the occupational radiation exposure of nurses during 131I-meta-iodo-benzyl-guanidine (131I-MIBG) therapy for children with high-risk neuroblastoma was evaluated. Attachable tungsten shields in commercial tungsten aprons were set on a surface-ray source with 131I, which emit gamma rays. The mean shielding rate value was 0.1 ± 0.006 for 131I. The shielding effects of tungsten and lead aprons were evaluated using a scintillation detector. The shielding effect rates of lead and tungsten aprons against 131I was 6.3% ± 0.3% and 42.1% ± 0.2% at 50 cm; 6.1% ± 0.5% and 43.3% ± 0.3% at 1 m; and 6.4% ± 0.9% and 42.6% ± 0.6% at 2 m, respectively. Next, we assessed the occupational radiation exposure during 131I-MIBG therapy (administration dose: 666 MBq/kg, median age: 4 years). The total occupational radiation exposure dose per patient care per 131I-MIBG therapy session among nurses was 0.12 ± 0.07 mSv. The average daily radiation exposure dose per patient care among nurses was 0.03 ± 0.03 mSv. Tungsten aprons had efficient shielding effects against gamma rays and would be beneficial to reduce radiation exposures per patient care per 131I-MIBG therapy session.

OCCUPATIONAL RADIATION EXPOSURE DOSE OF THE EYE IN DEPARTMENT OF CARDIAC ARRHYTHMIA PHYSICIAN

2019 ◽  
Vol 187 (3) ◽  
pp. 361-368 ◽  
Author(s):  
Mamoru Kato ◽  
Koichi Chida ◽  
Takato Ishida ◽  
Fumiaki Sasaki ◽  
Hideto Toyoshima ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Exposure Dose ◽  
Eye Lens ◽  
High Radiation ◽  
Correct Evaluation ◽  
Occupational Radiation Exposure ◽  
Eye Lens Dose ◽  
Left Neck ◽  
Occupational Radiation ◽  
Radiation Exposure Dose

Abstract Interventional radiology (IR) procedures tend to be complex, which delivers high radiation exposure to patient. In the present study, we measured the radiation exposure dose [Hp(3)] in the eye using a direct eye dosemeter placed next to the physician’s eye during procedures. Physicians wore a direct eye dosemeter just lateral to eyes and an additional direct eye dosemeter outside the radiation protective eyeglasses close to their eyes. Additionally, a neck glass badge was worn at the neck. Although we found a positive correlation between the left neck glass badge dose [Hp(0.07)] and the left eye lens dose [Hp(3)], the value of R2 of the regression equation were 0.62 and 0.71 (outside and inside). We thought that the exact eye lens dose might not be estimated from the neck glass badge. In conclusion, a correct evaluation of the lens dose [Hp(3)] using the direct eye dosemeter is recommended for tachyarrhythmia physicians.

scholarly journals Effect of Exposure Angulation on the Occupational Radiation Exposure during Cardiac Angiography: Simulation Study

2021 ◽  
Vol 18 (15) ◽  
pp. 8097
Author(s):  
Younghoon Roh ◽  
Jungsu Kim ◽  
Hyemin Park ◽  
Jungmin Kim ◽  
Dongryeol Ryu ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Conversion Factor ◽  
Organ Dose ◽  
Exposure Dose ◽  
Organ Doses ◽  
Occupational Radiation Exposure ◽  
Interventional Cardiologist ◽  
Cardiac Angiography ◽  
Occupational Dose ◽  
Occupational Radiation

Cardiac angiography to visualize the cardiac coronary artery for lesions causes a lot of radiation exposure dose to the interventional cardiologist. We evaluated the occupational radiation exposure to the interventional cardiologist based on changes to the angle of the X-ray tube used in cardiac angiography and calculated the conversion factor for effective dose in this study. To evaluate the occupational radiation exposure resulting from scattered radiation to interventional cardiologists, organ doses for eyeball, thyroid, and heart were calculated using Monte Carlo simulation with korean typical man(KTMAN) phantom at the left anterior oblique (LAO)30/cranial (CRAN)30, CRAN40, right anterior oblique (RAO)30/CRAN30, RAO30/caudal(CAUD)20, CAUD39, LAO40/CAUD35, and LAO40 positions in the femoral and the radial artery puncture. In this study, analysis of the different angles showed the highest radiation exposure on LAO30/CRAN30 and CRAN40 position, which were 150.65% and 135.3%, respectively, compared to AP angles. Therefore, to reduce occupational dose for interventional cardiologists, it is recommended that radiation protection, such as using radiation shield and personal protective equipment (PPE), be used at LAO30/CRAN30 and CRAN40 angulation, and the conversion factor for calculating the organ dose received by the interventional cardiologists based on patient dose can be applied for improved occupational dose management.

scholarly journals Non-Hodgkin lymphoma and occupational radiation exposure assessed using local data

2009 ◽  
Vol 59 (6) ◽  
pp. 437-439 ◽  
Author(s):  
K. K. Karipidis ◽  
G. Benke ◽  
M. R. Sim ◽  
L. Fritschi ◽  
C. Vajdic ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Hodgkin Lymphoma ◽  
Local Data ◽  
Occupational Radiation Exposure ◽  
Non Hodgkin Lymphoma ◽  
Occupational Radiation

scholarly journals Occupational Radiation Exposure During Endovascular Aortic Procedures

2013 ◽  
Vol 46 (4) ◽  
pp. 424-430 ◽  
Author(s):  
A.P. Patel ◽  
D. Gallacher ◽  
R. Dourado ◽  
O. Lyons ◽  
A. Smith ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Occupational Radiation Exposure ◽  
Occupational Radiation

scholarly journals Comparative occupational radiation exposure between fixed and mobile imaging systems

2016 ◽  
Vol 63 (1) ◽  
pp. 190-197 ◽  
Author(s):  
Daniel E. Kendrick ◽  
Claire P. Miller ◽  
Pamela A. Moorehead ◽  
Ann H. Kim ◽  
Henry R. Baele ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Imaging Systems ◽  
Occupational Radiation Exposure ◽  
Mobile Imaging ◽  
Occupational Radiation

Impact of considering non-occupational radiation exposure on the association between occupational dose and solid cancer among French nuclear workers

2017 ◽  
Vol 75 (3) ◽  
pp. 199-204 ◽  
Author(s):  
Lucie Fournier ◽  
Enora Cléro ◽  
Eric Samson ◽  
Sylvaine Caër-Lorho ◽  
Dominique Laurier ◽  
...  
Keyword(s):  
Occupational Exposure ◽  
Cancer Risk ◽  
Radiation Exposure ◽  
Cancer Mortality ◽  
Environmental Radiation ◽  
Occupational Radiation Exposure ◽  
X Ray ◽  
Work Related ◽  
The Mean ◽  
Occupational Radiation

ObjectivesThe French nuclear worker cohort allows for the assessment of cancer risk associated with occupational radiation exposure, but workers are also exposed to medical and environmental radiation which can be of the same order of magnitude. This study aims to examine the impact of non-occupational radiation exposures on the dose-risk analysis between occupational radiation exposure and cancer mortality.MethodsThe cohort included workers employed before 1995 for at least one year by CEA, AREVA NC or EDF and badge-monitored for external radiation exposure. Monitoring results were used to calculate occupational individual doses. Scenarios of work-related X-ray and environmental exposures were simulated. Poisson regression was used to quantify associations between occupational exposure and cancer mortality adjusting for non-occupational radiation exposure.ResultsThe mean cumulative dose of external occupational radiation was 18.4 mSv among 59 004 workers. Depending on the hypotheses made, the mean cumulative work-related X-ray dose varied between 3.1 and 9.2 mSv and the mean cumulative environmental dose was around 130 mSv. The unadjusted excess relative rate of cancer per Sievert (ERR/Sv) was 0.34 (90% CI −0.44 to 1.24). Adjusting for environmental radiation exposure did not substantially modify this risk coefficient, but it was attenuated by medical exposure (ERR/Sv point estimate between 0.15 and 0.23).ConclusionsOccupational radiation risk estimates were lower when adjusted for work-related X-ray exposures. Environmental exposures had a very slight impact on the occupational exposure risk estimates. In any scenario of non-occupational exposure considered, a positive but insignificant excess cancer risk associated with occupational exposure was observed.

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