Pub Date : 2023-12-20DOI: 10.1051/radiopro/2023039
JA. Corbacho, JA. Baeza, JM. Caballero
In recent times, the utilization of unmanned aerial vehicles (UAVs) has emerged as a novel tool for a wide range of tasks associated with radiological protection in hazardous situations. This article presents the development of a rotary-wing drone-based system equipped with a LaBr3(Ce) detector, enabling highly accurate quantification of both point and extended radiation sources. The drone's capability to precisely measure H*(10) and the activity levels of the involved radionuclides has been assessed through real-world testing in two scenarios. The results demonstrate uncertainties on the order of 20%.
{"title":"Use of a drone-based gamma-ray spectrometry system to assess point or extended radioactive sources","authors":"JA. Corbacho, JA. Baeza, JM. Caballero","doi":"10.1051/radiopro/2023039","DOIUrl":"https://doi.org/10.1051/radiopro/2023039","url":null,"abstract":"In recent times, the utilization of unmanned aerial vehicles (UAVs) has emerged as a novel tool for a wide range of tasks associated with radiological protection in hazardous situations. This article presents the development of a rotary-wing drone-based system equipped with a LaBr3(Ce) detector, enabling highly accurate quantification of both point and extended radiation sources. The drone's capability to precisely measure H*(10) and the activity levels of the involved radionuclides has been assessed through real-world testing in two scenarios. The results demonstrate uncertainties on the order of 20%.","PeriodicalId":21009,"journal":{"name":"Radioprotection","volume":"50 5","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139169425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-19DOI: 10.1051/radiopro/2023043
L. Canet, M. Takada, T. Yasutaka
Nuclear accidents have impacted the territory, population, and environment over a long time. With their global and multifaceted impacts, increasing preparedness for such events will help achieve better and more sustainable long-term recovery. Recovery and response guidelines exist internationally for preparing for nuclear accidents. The qualitative and quantitative analysis of 13 recovery guidelines realised in this study help to better understand the general emphasis points, specificities, and potential topics that need to be further developed in the wake of sustainable remediation. Currently, recovery and remediation prioritise waste management, population protection, and well-being, with less focus on environmental and economic aspects. To meet sustainable needs, these less-emphasised areas should be addressed to foster more comprehensive and resilient recovery strategies.
{"title":"Comparative Qualitative and Quantitative Analysis of Guidelines for Nuclear Accident Recovery","authors":"L. Canet, M. Takada, T. Yasutaka","doi":"10.1051/radiopro/2023043","DOIUrl":"https://doi.org/10.1051/radiopro/2023043","url":null,"abstract":"Nuclear accidents have impacted the territory, population, and environment over a long time. With their global and multifaceted impacts, increasing preparedness for such events will help achieve better and more sustainable long-term recovery. Recovery and response guidelines exist internationally for preparing for nuclear accidents. The qualitative and quantitative analysis of 13 recovery guidelines realised in this study help to better understand the general emphasis points, specificities, and potential topics that need to be further developed in the wake of sustainable remediation. Currently, recovery and remediation prioritise waste management, population protection, and well-being, with less focus on environmental and economic aspects. To meet sustainable needs, these less-emphasised areas should be addressed to foster more comprehensive and resilient recovery strategies.","PeriodicalId":21009,"journal":{"name":"Radioprotection","volume":" 86","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138962339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-18DOI: 10.1051/radiopro/2023047
O. Nhila, M. Talbi, M. Youssoufi, M. El Mansouri, Z. Tahiri, E. Chakir, M. Azougagh
The objective of this study was to establish local diagnostic reference levels (LDRLs) for breast cancer computed tomography imaging in radiotherapy (CT-RT) at a single hospital in Morocco. Data were collected from 106 adult breast cancer patients aged between 33 and 78 years during five months. Data were obtained using a Hitachi Supria 16-slice CT simulator at a regional oncology center in Morocco. CT-RT images are intended for 3D conformal radiotherapy treatment planning. Dose length product (DLP) and volumetric computed tomography dose index (CTDIvol) were evaluated by determining the 75th percentile as diagnostic reference levels for CT-RT breast cancer. LDRLs for CT-RT breast cancer have been determined in terms of DLP and CTDIvol, and they were 330.4 mGy.cm and 6.8mGy, respectively. The DRLs were compared with other Europeans study. DRLs for this study were lower than those for the United Kingdom (UK), Croatia and Slovenia. The results of this study can be a reference for the establishment of local and national DRLs in Morocco and the optimization of CT-RT breast cancer procedures.
{"title":"Etablissement de niveaux de référence diagnostiques locaux pour les protocoles de tomodensitométrie en radiothérapie du cancer du sein dans un seul centre marocain","authors":"O. Nhila, M. Talbi, M. Youssoufi, M. El Mansouri, Z. Tahiri, E. Chakir, M. Azougagh","doi":"10.1051/radiopro/2023047","DOIUrl":"https://doi.org/10.1051/radiopro/2023047","url":null,"abstract":"The objective of this study was to establish local diagnostic reference levels (LDRLs) for breast cancer computed tomography imaging in radiotherapy (CT-RT) at a single hospital in Morocco. Data were collected from 106 adult breast cancer patients aged between 33 and 78 years during five months. Data were obtained using a Hitachi Supria 16-slice CT simulator at a regional oncology center in Morocco. CT-RT images are intended for 3D conformal radiotherapy treatment planning. Dose length product (DLP) and volumetric computed tomography dose index (CTDIvol) were evaluated by determining the 75th percentile as diagnostic reference levels for CT-RT breast cancer. LDRLs for CT-RT breast cancer have been determined in terms of DLP and CTDIvol, and they were 330.4 mGy.cm and 6.8mGy, respectively. The DRLs were compared with other Europeans study. DRLs for this study were lower than those for the United Kingdom (UK), Croatia and Slovenia. The results of this study can be a reference for the establishment of local and national DRLs in Morocco and the optimization of CT-RT breast cancer procedures.","PeriodicalId":21009,"journal":{"name":"Radioprotection","volume":"81 2","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-18DOI: 10.1051/radiopro/2023048
Tien-Quan Nguyen, Thi-Minh Nguyen, Hoai-Nam Tran
This paper mentions roles, responsibilities of medical physicists at a department of diagnostic imaging in general; currently situation and requirement for human resources in Vietnam. Medical Physicists have not been recorded working independently at the departments of diagnostic imaging. Roles and responsibilities of clinical medical physicist are taken up by radiologists, biomedical engineers, and medical physicists at radiation oncology or nuclear medicine. Clinical medical physics profession is still a potential profession at diagnostic imaging departments in Vietnam.
{"title":"REQUIREMENT FOR DIAGNOSTIC MEDICAL PHYSICISTS IN VIETNAM","authors":"Tien-Quan Nguyen, Thi-Minh Nguyen, Hoai-Nam Tran","doi":"10.1051/radiopro/2023048","DOIUrl":"https://doi.org/10.1051/radiopro/2023048","url":null,"abstract":"This paper mentions roles, responsibilities of medical physicists at a department of diagnostic imaging in general; currently situation and requirement for human resources in Vietnam. Medical Physicists have not been recorded working independently at the departments of diagnostic imaging. Roles and responsibilities of clinical medical physicist are taken up by radiologists, biomedical engineers, and medical physicists at radiation oncology or nuclear medicine. Clinical medical physics profession is still a potential profession at diagnostic imaging departments in Vietnam.","PeriodicalId":21009,"journal":{"name":"Radioprotection","volume":"83 ","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139175871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-15DOI: 10.1051/radiopro/2023046
N. Shubayr
Objective: This study aimed to assess the perceptions of radiologic technologists towards the use of radiation protective equipment (RPE) in fluoroscopy units and to identify the Health Belief Model constructs, “perceived susceptibility, perceived severity, perceived benefits, perceived barriers, cues to action, and self-efficacy”, that predict RPE utilization among radiologic technologists. Methods: A cross-sectional observational study was conducted among 228 radiologic technologists in Saudi Arabia. Data were collected using a self-administered questionnaire that included socio-demographic characteristics, frequency of RPE utilization, and the Health Belief Model. Logistic regression was used to identify the predictors of RPE utilization. Results: The findings indicate that 63% of radiologic technologists reported always being committed to using RPE, while 37% reported not fully committed. Perceived severity, perceived benefits, perceived barriers, cues to action, and self-efficacy showed significant associations with RPE utilization between the two groups of radiologic technologists: those who always use RPE and those who are not fully committed (p < 0.05). Logistic regression showed that perceived benefits were a significant predictor of RPE utilization (AOR = 0.20, 95% CI: 0.60–0.67, p = 0.009), and type of hospital was also a significant predictor (AOR=0.09, 95% CI: 0.1–0.97, p = 0.047). Conclusion: The study highlights the need for interventions to improve the consistent use of RPE among radiologic technologists in fluoroscopy units. Emphasizing the importance of RPE usage, addressing barriers, and providing adequate cues to action can help enhance radiologic technologists' commitment to using RPE and reduce radiation exposure risks. Tailoring interventions to the specific hospital setting and considering the perceived benefits of using RPE are crucial for promoting a culture of safety and accountability in different healthcare settings.
{"title":"Factors Influencing Radiologic Technologists’ Commitment to Radiation Protective Equipment Utilization in Fluoroscopy Units: An Analysis Using the Health Belief Model Scale","authors":"N. Shubayr","doi":"10.1051/radiopro/2023046","DOIUrl":"https://doi.org/10.1051/radiopro/2023046","url":null,"abstract":"Objective: This study aimed to assess the perceptions of radiologic technologists towards the use of radiation protective equipment (RPE) in fluoroscopy units and to identify the Health Belief Model constructs, “perceived susceptibility, perceived severity, perceived benefits, perceived barriers, cues to action, and self-efficacy”, that predict RPE utilization among radiologic technologists. \u0000Methods: A cross-sectional observational study was conducted among 228 radiologic technologists in Saudi Arabia. Data were collected using a self-administered questionnaire that included socio-demographic characteristics, frequency of RPE utilization, and the Health Belief Model. Logistic regression was used to identify the predictors of RPE utilization. \u0000Results: The findings indicate that 63% of radiologic technologists reported always being committed to using RPE, while 37% reported not fully committed. Perceived severity, perceived benefits, perceived barriers, cues to action, and self-efficacy showed significant associations with RPE utilization between the two groups of radiologic technologists: those who always use RPE and those who are not fully committed (p < 0.05). Logistic regression showed that perceived benefits were a significant predictor of RPE utilization (AOR = 0.20, 95% CI: 0.60–0.67, p = 0.009), and type of hospital was also a significant predictor (AOR=0.09, 95% CI: 0.1–0.97, p = 0.047). \u0000Conclusion: The study highlights the need for interventions to improve the consistent use of RPE among radiologic technologists in fluoroscopy units. Emphasizing the importance of RPE usage, addressing barriers, and providing adequate cues to action can help enhance radiologic technologists' commitment to using RPE and reduce radiation exposure risks. Tailoring interventions to the specific hospital setting and considering the perceived benefits of using RPE are crucial for promoting a culture of safety and accountability in different healthcare settings. \u0000","PeriodicalId":21009,"journal":{"name":"Radioprotection","volume":"117 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138997522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-15DOI: 10.1051/radiopro/2023044
N. Alomairy
This study aims to assess the knowledge and attitudes towards radiation protection among nurses in pediatric intensive care units (PICUs), where portable radiological examinations are frequently conducted. In this study, we employed a descriptive cross-sectional research design using a 17-item self-administered questionnaire. The study consisted of 160 nurses, mostly female (91%), with an even split in educational background between diploma and bachelor’s degree holders. The majority had 1-5 years (39%) and 6-10 years (33%) of experience, while only a small fraction (6.2%) had undergone training in radiation protection. The overall score of knowledge and attitudes scores were 2.9 ± 1.4 out of 7 and 3.1 ± 0.9 out 4, respectively. A statistically significant variation in knowledge scores was noted between those with a Bachelor's degree (3.2 ± 1.4) and a Diploma (2.7 ± 1.3) (p=0.044). A positive correlation between knowledge and attitude scores was statistically validated (Spearman’s rho = 0.19, p=0.014), and training in radiation protection was identified as a significant factor affecting these scores (Estimate = -1.38, p = 0.025). The study reveals a poor level of knowledge and a good attitude towards radiation protection among PICU nurses in the Jazan region. This emphasizes the need for targeted educational interventions and training programs in radiation safety to enhance the quality of care in pediatric radiological procedures.
{"title":"Evaluating the Knowledge and Attitudes Towards Radiation Protection in Portable Radiological Examinations Among Nurses in Pediatric Intensive Care Units","authors":"N. Alomairy","doi":"10.1051/radiopro/2023044","DOIUrl":"https://doi.org/10.1051/radiopro/2023044","url":null,"abstract":"This study aims to assess the knowledge and attitudes towards radiation protection among nurses in pediatric intensive care units (PICUs), where portable radiological examinations are frequently conducted. In this study, we employed a descriptive cross-sectional research design using a 17-item self-administered questionnaire. The study consisted of 160 nurses, mostly female (91%), with an even split in educational background between diploma and bachelor’s degree holders. The majority had 1-5 years (39%) and 6-10 years (33%) of experience, while only a small fraction (6.2%) had undergone training in radiation protection. The overall score of knowledge and attitudes scores were 2.9 ± 1.4 out of 7 and 3.1 ± 0.9 out 4, respectively. A statistically significant variation in knowledge scores was noted between those with a Bachelor's degree (3.2 ± 1.4) and a Diploma (2.7 ± 1.3) (p=0.044). A positive correlation between knowledge and attitude scores was statistically validated (Spearman’s rho = 0.19, p=0.014), and training in radiation protection was identified as a significant factor affecting these scores (Estimate = -1.38, p = 0.025). The study reveals a poor level of knowledge and a good attitude towards radiation protection among PICU nurses in the Jazan region. This emphasizes the need for targeted educational interventions and training programs in radiation safety to enhance the quality of care in pediatric radiological procedures.","PeriodicalId":21009,"journal":{"name":"Radioprotection","volume":"19 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138995770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-29DOI: 10.1051/radiopro/2023041
S. Semghouli, L. El Hamidi, M. Aabid, B. Amaoui
Objective: In this study, we have planned to establish the local Diagnostic Reference Levels (DRLs) for the five University Hospital Centers in Morocco and to propose a national DRL for abdominopelvic CT examinations for adult patients. Materials and methods: Data were collected using a specially designed form, which included patient demographics, exposure parameters and dosimetric indicators such as dose-length product (DLP) and CT volume dose index (CTDIvol). The establishment of local and national DRL in terms of CTDIvol and DLP was carried out in accordance with the methodology described in Report 135 of the International Commission on Radiological Protection (ICRP). The effective dose was assessed using the DLP and the dose conversion factor appropriate for this location. Results: A total of 300 patients undergoing abdominopelvic examinations at the five Moroccan university hospitals were collected for this study. Patients' mean age, weight and BMI were (50.97±15.05) years (67.94±11.41) Kg and (25.71±3.03) Kg/m2 respectively. The local DRL, in terms of DLP were 551.56, 2293.33, 709.02, 843.52 and 1059.62 mGy-cm and in terms of CTDIvol were 11,05, 46,40, 13,14, 12,01, 9,88 mGy respectively for UHC-ISR, UHC-IRC, UHC-HIIF, UHC-MVIM and UHC-MVIO hospitals. The proposed National DRL, defined as a single value for the 75th percentile on the aggregation of data from the five centers, for abdominopelvic scan CT was 773.20 mGy.cm and 12.05 mGy for DLP and CTDIvol, respectively. Conclusion: The Moroccan DRL was comparable to those of other countries, ranking 10th among 21 countries. However, we are still seeking to reduce and optimize radiation dose while maintaining good image quality for reliable diagnosis, and this can be achieved by enhancing radiographers' and radiologists' knowledge of radiation protection, protocol justification, and optimization through rigorous hospital radiation audits at national level.
{"title":"Evaluation of radiation dose and establishment of local DRLs for adult during Abdominopelvic CT Scan imaging for University Hospital Centers, Morocco","authors":"S. Semghouli, L. El Hamidi, M. Aabid, B. Amaoui","doi":"10.1051/radiopro/2023041","DOIUrl":"https://doi.org/10.1051/radiopro/2023041","url":null,"abstract":"Objective: In this study, we have planned to establish the local Diagnostic Reference Levels (DRLs) for the five University Hospital Centers in Morocco and to propose a national DRL for abdominopelvic CT examinations for adult patients. Materials and methods: Data were collected using a specially designed form, which included patient demographics, exposure parameters and dosimetric indicators such as dose-length product (DLP) and CT volume dose index (CTDIvol). The establishment of local and national DRL in terms of CTDIvol and DLP was carried out in accordance with the methodology described in Report 135 of the International Commission on Radiological Protection (ICRP). The effective dose was assessed using the DLP and the dose conversion factor appropriate for this location. Results: A total of 300 patients undergoing abdominopelvic examinations at the five Moroccan university hospitals were collected for this study. Patients' mean age, weight and BMI were (50.97±15.05) years (67.94±11.41) Kg and (25.71±3.03) Kg/m2 respectively. The local DRL, in terms of DLP were 551.56, 2293.33, 709.02, 843.52 and 1059.62 mGy-cm and in terms of CTDIvol were 11,05, 46,40, 13,14, 12,01, 9,88 mGy respectively for UHC-ISR, UHC-IRC, UHC-HIIF, UHC-MVIM and UHC-MVIO hospitals. The proposed National DRL, defined as a single value for the 75th percentile on the aggregation of data from the five centers, for abdominopelvic scan CT was 773.20 mGy.cm and 12.05 mGy for DLP and CTDIvol, respectively. Conclusion: The Moroccan DRL was comparable to those of other countries, ranking 10th among 21 countries. However, we are still seeking to reduce and optimize radiation dose while maintaining good image quality for reliable diagnosis, and this can be achieved by enhancing radiographers' and radiologists' knowledge of radiation protection, protocol justification, and optimization through rigorous hospital radiation audits at national level.","PeriodicalId":21009,"journal":{"name":"Radioprotection","volume":"45 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139210833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-26DOI: 10.1051/radiopro/2023040
Z. Mehrabankhoo, M. Behmadi, K. Karimi Shahri
In certain situations, it is crucial to quickly estimate the dose for radiation workers across different weight percentiles. This study sets out to create weight percentiles above 50 by adding proper adipose and muscle layers around the revised ORNL hermaphrodite phantom torso. Neutron fluence-to-organ absorbed and effective dose conversion coefficients were calculated to different weight percentiles. Simulations were performed in the energy range 10-9 to 20 MeV, under Six different source irradiation geometries: anterior–posterior (AP), posterior–anterior (PA), right-lateral (RLAT), left-lateral (LLAT), Rotation (ROT), and Isotropic (ISO) by MCNPX code. The maximum relative differences observed between the 50th and other percentiles ranged from 11% to 28%. Comparative analysis of the fluence-to-absorbed and effective dose conversion coefficients between the 95th percentile and VIPMAN indicated that approximately 58% and 57% of the data had a relative difference below 15%, respectively overall neutron energies and irradiation geometries. Our finding demonstrate that this straightforward method is reliable, especially when the whole body is irradiated in the energies above 1 MeV.
{"title":"Rapid Assessment of Dose for Large-Scale Individual: a Feasibility Study","authors":"Z. Mehrabankhoo, M. Behmadi, K. Karimi Shahri","doi":"10.1051/radiopro/2023040","DOIUrl":"https://doi.org/10.1051/radiopro/2023040","url":null,"abstract":"In certain situations, it is crucial to quickly estimate the dose for radiation workers across different weight percentiles. This study sets out to create weight percentiles above 50 by adding proper adipose and muscle layers around the revised ORNL hermaphrodite phantom torso. Neutron fluence-to-organ absorbed and effective dose conversion coefficients were calculated to different weight percentiles. Simulations were performed in the energy range 10-9 to 20 MeV, under Six different source irradiation geometries: anterior–posterior (AP), posterior–anterior (PA), right-lateral (RLAT), left-lateral (LLAT), Rotation (ROT), and Isotropic (ISO) by MCNPX code. The maximum relative differences observed between the 50th and other percentiles ranged from 11% to 28%. Comparative analysis of the fluence-to-absorbed and effective dose conversion coefficients between the 95th percentile and VIPMAN indicated that approximately 58% and 57% of the data had a relative difference below 15%, respectively overall neutron energies and irradiation geometries. Our finding demonstrate that this straightforward method is reliable, especially when the whole body is irradiated in the energies above 1 MeV.","PeriodicalId":21009,"journal":{"name":"Radioprotection","volume":"40 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139234980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-17DOI: 10.1051/radiopro/2023036
D. Laurier, Billarand Y, Klokov D, Leuraud K.
Le modèle linéaire sans seuil (LNT) a été introduit dans le système de radioprotection il y a environ 60 ans, mais ce modèle et son utilisation en radioprotection sont encore débattus aujourd'hui. Cet article résume les résultats en radiobiologie et en épidémiologie accumulés au cours de la dernière décennie sur les effets d’une exposition aux rayonnements ionisants à faible Transfert d’Energie Linéique (TEL) et discute de leur impact sur l'utilisation du modèle LNT dans l'évaluation des risques de cancer par rayonnement à faibles doses. Les connaissances acquises au cours des 10 dernières années, tant en radiobiologie qu'en épidémiologie, ont renforcé les fondements scientifiques sur les risques de cancer à faibles doses. En radiobiologie, bien que certains mécanismes ne soient pas linéaires avec la dose, les premiers stades de la cancérogenèse composés d'événements mutationnels, qui jouent un rôle clé dans la cancérogenèse, montrent des réponses linéaires à des doses aussi faibles que 10 mGy. L'impact des mécanismes non mutationnels sur le risque de cancer associé aux rayonnements à faibles doses est actuellement difficile à évaluer. En épidémiologie, les résultats montrent un excès de risques de cancer à des niveaux de dose de 100 mGy ou moins. Bien que certains résultats récents indiquent des relations non linéaires avec la dose pour certains types de cancers, le modèle LNT ne surestime pas substantiellement globalement les risques à faibles doses. Les résultats actuels, en radiobiologie ou en épidémiologie, ne démontrent pas l'existence d'un seuil de dose en dessous duquel le risque de cancer associé aux rayonnements serait nul. Des incertitudes persistent mais un tel seuil de dose, s'il existe, ne pourrait être supérieur à quelques dizaines de mGy. L'IRSN considère que les connaissances scientifiques actuellement disponibles ne remettent pas en cause l'utilisation du modèle LNT pour l'évaluation des risques de cancers radio-induits en appui au système de radioprotection. L'utilisation de ce modèle semble raisonnable d'un point de vue scientifique, et aucune autre relation dose-réponse ne semble plus adaptée ou justifiée à des fins de radioprotection.
{"title":"Fondements scientifiques de l’utilisation du modèle linéaire sans seuil (LNT) aux faibles doses et débits de dose en radioprotection","authors":"D. Laurier, Billarand Y, Klokov D, Leuraud K.","doi":"10.1051/radiopro/2023036","DOIUrl":"https://doi.org/10.1051/radiopro/2023036","url":null,"abstract":"Le modèle linéaire sans seuil (LNT) a été introduit dans le système de radioprotection il y a environ 60 ans, mais ce modèle et son utilisation en radioprotection sont encore débattus aujourd'hui. Cet article résume les résultats en radiobiologie et en épidémiologie accumulés au cours de la dernière décennie sur les effets d’une exposition aux rayonnements ionisants à faible Transfert d’Energie Linéique (TEL) et discute de leur impact sur l'utilisation du modèle LNT dans l'évaluation des risques de cancer par rayonnement à faibles doses. Les connaissances acquises au cours des 10 dernières années, tant en radiobiologie qu'en épidémiologie, ont renforcé les fondements scientifiques sur les risques de cancer à faibles doses. En radiobiologie, bien que certains mécanismes ne soient pas linéaires avec la dose, les premiers stades de la cancérogenèse composés d'événements mutationnels, qui jouent un rôle clé dans la cancérogenèse, montrent des réponses linéaires à des doses aussi faibles que 10 mGy. L'impact des mécanismes non mutationnels sur le risque de cancer associé aux rayonnements à faibles doses est actuellement difficile à évaluer. En épidémiologie, les résultats montrent un excès de risques de cancer à des niveaux de dose de 100 mGy ou moins. Bien que certains résultats récents indiquent des relations non linéaires avec la dose pour certains types de cancers, le modèle LNT ne surestime pas substantiellement globalement les risques à faibles doses. Les résultats actuels, en radiobiologie ou en épidémiologie, ne démontrent pas l'existence d'un seuil de dose en dessous duquel le risque de cancer associé aux rayonnements serait nul. Des incertitudes persistent mais un tel seuil de dose, s'il existe, ne pourrait être supérieur à quelques dizaines de mGy. L'IRSN considère que les connaissances scientifiques actuellement disponibles ne remettent pas en cause l'utilisation du modèle LNT pour l'évaluation des risques de cancers radio-induits en appui au système de radioprotection. L'utilisation de ce modèle semble raisonnable d'un point de vue scientifique, et aucune autre relation dose-réponse ne semble plus adaptée ou justifiée à des fins de radioprotection.","PeriodicalId":21009,"journal":{"name":"Radioprotection","volume":"69 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139264816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-08DOI: 10.1051/radiopro/2023038
F. Forster, L. Ermel, C. Riesmeyer, R. Jung, K. Lüthy, P. Wullinger, T. Weinmann
We aimed to summarise the evidence regarding the knowledge, risk perception and information needs of general practitioners (GPs) regarding electromagnetic fields (EMF). To achieve this aim, we searched for relevant articles in PubMed and additional sources, screened them based on the inclusion criteria and extracted relevant information from the eligible articles. Included manuscripts were summarised via narrative synthesis. Out of 274 records, nine articles from five different studies (all from Europe) were included. All studies reported considerable concern about the possible negative health-effects caused by EMF among GPs. In most of the studies GPs, indicated insufficiently covered information needs concerning EMF. Four studies reported that GPs were consulted by patients regarding potential health effects of EMF. The level of concern regarding health effects of EMF among GPs is high, while their information needs are insufficiently satisfied. It remains unclear what factors determine this concern. Likewise, there is little data on GPs’ actual level of knowledge on EMF and health. Future studies may take new perspectives such as concepts from communication science and use additional methods like qualitative techniques. Moreover, the communication of scientific evidence about EMF towards GPs needs to be improved in order to enable them to provide evidence-based counselling.
{"title":"Knowledge, risk perception and information needs of general practitioners regarding potential health effects of electromagnetic fields: A scoping review of the scientific literature","authors":"F. Forster, L. Ermel, C. Riesmeyer, R. Jung, K. Lüthy, P. Wullinger, T. Weinmann","doi":"10.1051/radiopro/2023038","DOIUrl":"https://doi.org/10.1051/radiopro/2023038","url":null,"abstract":"We aimed to summarise the evidence regarding the knowledge, risk perception and information needs of general practitioners (GPs) regarding electromagnetic fields (EMF). To achieve this aim, we searched for relevant articles in PubMed and additional sources, screened them based on the inclusion criteria and extracted relevant information from the eligible articles. Included manuscripts were summarised via narrative synthesis. Out of 274 records, nine articles from five different studies (all from Europe) were included. All studies reported considerable concern about the possible negative health-effects caused by EMF among GPs. In most of the studies GPs, indicated insufficiently covered information needs concerning EMF. Four studies reported that GPs were consulted by patients regarding potential health effects of EMF. The level of concern regarding health effects of EMF among GPs is high, while their information needs are insufficiently satisfied. It remains unclear what factors determine this concern. Likewise, there is little data on GPs’ actual level of knowledge on EMF and health. Future studies may take new perspectives such as concepts from communication science and use additional methods like qualitative techniques. Moreover, the communication of scientific evidence about EMF towards GPs needs to be improved in order to enable them to provide evidence-based counselling.","PeriodicalId":21009,"journal":{"name":"Radioprotection","volume":" 29","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135340592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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