Radiation protection dosimetry最新文献_第9页

Evaluation of occupational radiation exposure and influencing factors for healthcare workers during diagnostic computed tomography imaging. 诊断性计算机断层成像过程中卫生保健工作者职业辐射暴露及其影响因素的评价。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-05-27 DOI: 10.1093/rpd/ncaf049

Keisuke Nagamoto, Tomonori Kawachino, Yoshiki Suetsugu, Reika Urasaki, Saki Tokumoto, Masaoki Kohzaki, Shun-Ichi Nihei, Ryuji Okazaki

{"title":"Evaluation of occupational radiation exposure and influencing factors for healthcare workers during diagnostic computed tomography imaging.","authors":"Keisuke Nagamoto, Tomonori Kawachino, Yoshiki Suetsugu, Reika Urasaki, Saki Tokumoto, Masaoki Kohzaki, Shun-Ichi Nihei, Ryuji Okazaki","doi":"10.1093/rpd/ncaf049","DOIUrl":"10.1093/rpd/ncaf049","url":null,"abstract":"This study aimed to identify factors that increase radiation dose to computed tomography (CT) imaging assistants and to propose measures to minimize their effective dose, thereby improving radiation safety. Nine healthcare professionals (five intensivists and four radiological technologists) had their Hp(10) measured during 112 diagnostic CT procedures involving tasks categorized by proximity to the gantry: gantry proximal (e.g. bag-valve-mask (BVM) ventilation) and gantry distal (e.g. patient observation). Multiple regression analysis identified dose-length product (DLP) and tube current as significant predictors of effective dose of CT imaging assistants. The highest effective dose, 26 μSv, occurred during gantry proximal tasks. Intensivists received higher effective doses (35 μSv) than radiological technologists (19 μSv) because the CT imaging procedures they assisted with had higher DLP values. To reduce the effective dose, it is recommended to implement low-dose imaging protocols, optimize imaging coverage, and use radiation protection clothing, such as lead aprons, which significantly reduce Hp(10).","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"522-531"},"PeriodicalIF":0.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144044775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Soil-to-rice transfer factors of naturally occurring radionuclides in the Afram Plains, Ghana, and their potential radiological risks. 加纳阿夫拉姆平原天然放射性核素的土壤-水稻转移因子及其潜在辐射风险。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-05-27 DOI: 10.1093/rpd/ncaf041

Eric O Asare, Francis Otoo, David O Kpeglo, Oscar K Adukpo

引用次数: 0

GPU accelerated internal dose Monte Carlo simulation in 18F-FDG PET imaging. GPU加速内剂量蒙特卡罗模拟在18F-FDG PET成像。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-04-22 DOI: 10.1093/rpd/ncaf038

Zhiyuan Yang, Zhiling Li, Weihai Zhuo, Lin Xin

引用次数: 0

Generalizability of AI-based image segmentation and centering estimation algorithm: a multi-region, multi-center, and multi-scanner study. 基于人工智能的图像分割和定心估计算法的通用性：多区域、多中心和多扫描仪研究。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-04-22 DOI: 10.1093/rpd/ncaf018

Neal S Krishna, Emiliano Garza-Frias, Giridhar Dasegowda, Parisa Kaviani, Lina Karout, Roshan Fahimi, Bernardo Bizzo, Keith J Dreyer, Mannudeep K Kalra, Subba Digumarthy

{"title":"Generalizability of AI-based image segmentation and centering estimation algorithm: a multi-region, multi-center, and multi-scanner study.","authors":"Neal S Krishna, Emiliano Garza-Frias, Giridhar Dasegowda, Parisa Kaviani, Lina Karout, Roshan Fahimi, Bernardo Bizzo, Keith J Dreyer, Mannudeep K Kalra, Subba Digumarthy","doi":"10.1093/rpd/ncaf018","DOIUrl":"10.1093/rpd/ncaf018","url":null,"abstract":"We created and validated an open-access AI algorithm (AIc) for assessing image segmentation and patient centering in a multi-body-region, multi-center, and multi-scanner study. Our study included 825 head, chest, and abdomen-pelvis CT from 275 patients (153 females, 128 males; mean age 67 ± 14 years) scanned at five academic and community hospitals. CT images were processed with the AIc to determine vertical and horizontal centering at the skull base (head CT), carina (chest CT), and L2-L3 disc (abdomen CT). We manually measured the vertical and horizontal off-centering. We found strong correlations between AIc and manual estimate of off-centering in both the vertical (head, r = 0.93; chest, r = 0.94; abdomen, and r = 0.95) and horizontal directions (head CT, r = 0.85; chest, r = 0.85; abdomen, r = 0.8) and across age groups (r = 0.70-0.97), gender (r = 0.81-0.96), and multiple scanners from the five sites (r = 0.74-0.99). The AIc area under the receiver operating characteristic curve for centered and off-centered CT exams ranged from 0.72 (head) to 0.99 (chest). Therefore, our study showed that positron-emission tomography/CT (PET/CT) examinations commonly exhibit significant off-centering, particularly with vertical deviations often exceeding 30 mm and horizontal deviations between 10 and 30 mm. In addition, it demonstrated that our AI model can effectively assess both vertical and horizontal off-centering, although it performs better at estimating vertical off-centering.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"441-449"},"PeriodicalIF":0.8,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143804032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surgical staff doses during liver transplantation on a patient undergoing Lu-177-DOTATATE radioligand therapy. 外科工作人员在肝移植患者接受Lu-177-DOTATATE放射治疗的剂量。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-04-22 DOI: 10.1093/rpd/ncaf026

Faustino Bonutti, Cinzia Avigo, Vittorio Cherchi, Umberto Baccarani, Edoardo Scarpa, Alessandro Mangogna, Giuseppe Fanetti, Eugenio Borsatti, Annalisa Drigo

引用次数: 0

A survey on the determination of diagnostic reference levels in analog and digital radiography in Iran: a systematic literature review. 伊朗模拟和数字放射照相诊断参考水平测定的调查：系统文献综述。

IF 0.7 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-04-22 DOI: 10.1093/rpd/ncaf030

Mehdi Ghazizadeh, Mohammad Reza Deevband, Mohammad Reza Kardan, Meysam Tavakoli

{"title":"A survey on the determination of diagnostic reference levels in analog and digital radiography in Iran: a systematic literature review.","authors":"Mehdi Ghazizadeh, Mohammad Reza Deevband, Mohammad Reza Kardan, Meysam Tavakoli","doi":"10.1093/rpd/ncaf030","DOIUrl":"10.1093/rpd/ncaf030","url":null,"abstract":"Introduction: Although ionizing radiation plays a key role in both diagnosis and treatment, it brings potential risks, including incidence of cancer. Diagnostic Reference Level (DRL) is described as a tool to optimize the protection in the medical exposure for diagnostic procedures. The objective of this study is to propose a new method to calculate DRL by reviewing a series of articles which are published on the DRL in radiography.Materials and methods: The study analyzed 16 articles in the last ten years including published data on National and Local DRLs. The weighted mean method was used to propose unique quantities such as the entrance skin dose (ESD) or Entrance Surface Air Kerma (ESAK), and dose area product (DAP) as national DRL.Results: The results showed that there were differences in dose values among diagnostic radiology centers for different examinations. The study provides valuable information to calculate national DRL.Conclusion: The weighted mean of the ESD or ESAK and DAP values has been proposed as a new method for calculating national DRL values, which is considered the significant difference in statistical population and number of articles.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"432-440"},"PeriodicalIF":0.7,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143788716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A curious case: a criminal exposure to X-rays. 一个奇怪的案例：一个罪犯暴露在x光下。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-04-22 DOI: 10.1093/rpd/ncaf025

Jacques Blanchette, Louis Renaud, Farah Nasser, Yvan Dutil

引用次数: 0

Impact of changes to International Commission on Radiological Protection models on occupational thorium ore dust intake. 国际放射防护委员会模式变化对职业性钍矿粉尘吸入的影响。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-04-22 DOI: 10.1093/rpd/ncaf031

Gregory S Hewson, Martin I Ralph, Marcus Cattani

{"title":"Impact of changes to International Commission on Radiological Protection models on occupational thorium ore dust intake.","authors":"Gregory S Hewson, Martin I Ralph, Marcus Cattani","doi":"10.1093/rpd/ncaf031","DOIUrl":"10.1093/rpd/ncaf031","url":null,"abstract":"Workers involved in mining and processing naturally occurring radioactive materials (NORMs) are potentially exposed to dust containing alpha particle emitters. The objective of this study is to summarize the key impacts of the latest International Commission on Radiological Protection (ICRP) biokinetic model for thorium ore dust intake and to identify model parameters that require further investigation. The dosimetric significance of thorium ore dust exposure has varied widely over time owing to progressive changes in the inhalation dose coefficients. These changes had a significant influence on radiation protection practices in the Western Australian mineral sand industry, including research initiatives and implementation of control measures. Estimated doses to workers exposed to NORM dust have increased because of the most recent ICRP recommendations. Consequently, we highlight the need for future research, especially in relation to appropriate model input parameters specific to the NORM exposure situation and potential studies investigating the health status of past long-term workers.","PeriodicalId":20795,"journal":{"name":"Radiation protection dosimetry","volume":" ","pages":"420-431"},"PeriodicalIF":0.8,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12012373/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143773277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulations of the radiological consequences from accidents involving the transport of diagnostic radionuclides. 诊断性放射性核素运输事故放射后果的模拟。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-04-22 DOI: 10.1093/rpd/ncaf029

Sergio Biancotto, Marco D'Arienzo

引用次数: 0

Correction to: Healthcare regulatory body: potential risk assessment in mammography facilities. 医疗保健监管机构：乳房x光检查设施的潜在风险评估。

IF 0.8 4区环境科学与生态学

Radiation protection dosimetry Pub Date : 2025-04-22 DOI: 10.1093/rpd/ncaf042

引用次数: 0