W.G. Feng, W. Ma, Sh.P. Li, Y.X. Guo, W. Du, H.Y. Cai
{"title":"Dosimetric comparison of volumetric-modulated arc therapy (VMAT) and fixed field intensity-modulated radiotherapy (IMRT) in patients with nasal tumor: a meta-analysis","authors":"W.G. Feng, W. Ma, Sh.P. Li, Y.X. Guo, W. Du, H.Y. Cai","doi":"10.61186/ijrr.21.3.561","DOIUrl":"https://doi.org/10.61186/ijrr.21.3.561","url":null,"abstract":"","PeriodicalId":48815,"journal":{"name":"International Journal of Radiation Research","volume":"163 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139371623","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}
H. Ragab, D.M. Abdelaziz, M.M. Khalil, M.N. Yasein Elbakry
{"title":"Assessment of image quality of two cone-beam computed tomography of the Varian Linear accelerators: Comparison with spiral CT simulator","authors":"H. Ragab, D.M. Abdelaziz, M.M. Khalil, M.N. Yasein Elbakry","doi":"10.61186/ijrr.21.3.491","DOIUrl":"https://doi.org/10.61186/ijrr.21.3.491","url":null,"abstract":"","PeriodicalId":48815,"journal":{"name":"International Journal of Radiation Research","volume":"2 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139371875","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}
{"title":"Radiation safety and radiation monitoring practices among medical radiation workers in Malaysia","authors":"S. F. Mohd Ridzwan, L. Fritschi, N. Bhoo-Pathy","doi":"10.61186/ijrr.21.3.459","DOIUrl":"https://doi.org/10.61186/ijrr.21.3.459","url":null,"abstract":"","PeriodicalId":48815,"journal":{"name":"International Journal of Radiation Research","volume":"26 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139371611","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}
J. Zhao, G. Nie, Z. Liu, Y. Zhao, D. Zhao, L. Zheng
{"title":"Selection of kilovolt based on body mass index reduced radiation dose for computed tomography-guided radiofrequency ablation of liver tumors","authors":"J. Zhao, G. Nie, Z. Liu, Y. Zhao, D. Zhao, L. Zheng","doi":"10.61186/ijrr.21.3.531","DOIUrl":"https://doi.org/10.61186/ijrr.21.3.531","url":null,"abstract":"","PeriodicalId":48815,"journal":{"name":"International Journal of Radiation Research","volume":"35 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139371741","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}
{"title":"Effect of multi-dimensional nursing combined with early postoperative activity on the prognosis of patients undergoing laparoscopic radical gastrectomy for gastric cancer","authors":"C.J. Peng, T. Chen","doi":"10.61186/ijrr.21.3.399","DOIUrl":"https://doi.org/10.61186/ijrr.21.3.399","url":null,"abstract":"","PeriodicalId":48815,"journal":{"name":"International Journal of Radiation Research","volume":"53 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139371989","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}
H. Baysal, B. Baysal, M. Tarik Tatoglu, O. Alimoglu
{"title":"Isolated scapular metastasis from breast carcinoma","authors":"H. Baysal, B. Baysal, M. Tarik Tatoglu, O. Alimoglu","doi":"10.61186/ijrr.21.3.605","DOIUrl":"https://doi.org/10.61186/ijrr.21.3.605","url":null,"abstract":"","PeriodicalId":48815,"journal":{"name":"International Journal of Radiation Research","volume":"19 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139371996","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}
{"title":"Gamma analysis of patient specific quality assurance by hybrid acceptance criterion method","authors":"A. Watcharawipha, I. Chitapanarux","doi":"10.61186/ijrr.21.3.505","DOIUrl":"https://doi.org/10.61186/ijrr.21.3.505","url":null,"abstract":"","PeriodicalId":48815,"journal":{"name":"International Journal of Radiation Research","volume":"142 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139371134","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}
{"title":"Imaging features of intestinal metastasis from pulmonary sarcomatoid carcinoma","authors":"H. Wu, T. Tang, L. Yi","doi":"10.61186/ijrr.21.3.513","DOIUrl":"https://doi.org/10.61186/ijrr.21.3.513","url":null,"abstract":"","PeriodicalId":48815,"journal":{"name":"International Journal of Radiation Research","volume":"36 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139371756","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}
Background : Meta-analysis experiments can be used to judge the hypothesis of SMI benign and malignant thyroid nodules. Material and Methods : We explored Cochrane Library, PubMed, Google Scholar, CBM and Web of Science, databases according to the required content, and used a number of analysis equipment to analyze, and through the conclusions drawn to determine the sensitivity (Sen) and specificity (Spe), the probability ratio of pragmatic and dismissive (LR + / LR-), diagnostic factor (DOR) and receiver performance typical curve (SROC) are calculated for summary statistics. Results : The meta-analysis included nine studies that met the participation criteria. An aggregation of 636 malignant thyroid legumes and 732 benign thyroid nodules were evaluated. The comprehensive Sen was 0.79 (95% confidence interval (CI) = 0.76-0.82), and the comprehensive Spe was 0.89 (95% CI = 0.85-0.92). The comprehensive LR + was 7.04 (95% CI = 5.26-9.43), and the comprehensive negative LR- was 0.23 (95% CI = 0.20-0.27). The comprehensive DOR of thyroid nodules diagnosed by SMI was 30.33 (95% confidence interval = 20.73–44.38). The range beneath the SROC curve was 0.82 (95% confidence interval = 0.79 to 0.86). We established no proof of reporting bias (t = 0.91, P = 0.39). Conclusion : In a related meta-analysis, the study found that SMI has a very high prognosis accuracy in distinguishing malignant and benign thyroid nodules.
背景:meta分析实验可用于判断SMI患者甲状腺结节良恶性假说。材料与方法:我们根据需要的内容对Cochrane Library、PubMed、Google Scholar、CBM和Web of Science等数据库进行了检索，并使用多种分析设备进行分析，通过得出的结论确定敏感性(Sen)和特异性(Spe)，计算出语用与不屑一顾的概率比(LR + / LR-)、诊断因子(DOR)和接受者表现典型曲线(SROC)进行汇总统计。结果:荟萃分析包括9项符合参与标准的研究。恶性甲状腺结节636例，良性甲状腺结节732例。综合Sen为0.79(95%可信区间(CI) = 0.76 ~ 0.82)，综合Spe为0.89 (95% CI = 0.85 ~ 0.92)。综合LR +为7.04 (95% CI = 5.26 ~ 9.43)，综合LR-为0.23 (95% CI = 0.20 ~ 0.27)。SMI诊断甲状腺结节的综合DOR为30.33(95%可信区间= 20.73 ~ 44.38)。SROC曲线下极差为0.82(95%可信区间= 0.79 ~ 0.86)。我们没有建立报告偏倚的证据(t = 0.91, P = 0.39)。结论:在一项相关的meta分析中，研究发现SMI在鉴别甲状腺结节良恶性方面具有非常高的预后准确性。
{"title":"The accurate diagnosis of grand microvascular imaging in differentiating benign and malignant thyroid nodules: A meta-analysis","authors":"Y. Zhou, C. Wang","doi":"10.52547/ijrr.20.2.2","DOIUrl":"https://doi.org/10.52547/ijrr.20.2.2","url":null,"abstract":"Background : Meta-analysis experiments can be used to judge the hypothesis of SMI benign and malignant thyroid nodules. Material and Methods : We explored Cochrane Library, PubMed, Google Scholar, CBM and Web of Science, databases according to the required content, and used a number of analysis equipment to analyze, and through the conclusions drawn to determine the sensitivity (Sen) and specificity (Spe), the probability ratio of pragmatic and dismissive (LR + / LR-), diagnostic factor (DOR) and receiver performance typical curve (SROC) are calculated for summary statistics. Results : The meta-analysis included nine studies that met the participation criteria. An aggregation of 636 malignant thyroid legumes and 732 benign thyroid nodules were evaluated. The comprehensive Sen was 0.79 (95% confidence interval (CI) = 0.76-0.82), and the comprehensive Spe was 0.89 (95% CI = 0.85-0.92). The comprehensive LR + was 7.04 (95% CI = 5.26-9.43), and the comprehensive negative LR- was 0.23 (95% CI = 0.20-0.27). The comprehensive DOR of thyroid nodules diagnosed by SMI was 30.33 (95% confidence interval = 20.73–44.38). The range beneath the SROC curve was 0.82 (95% confidence interval = 0.79 to 0.86). We established no proof of reporting bias (t = 0.91, P = 0.39). Conclusion : In a related meta-analysis, the study found that SMI has a very high prognosis accuracy in distinguishing malignant and benign thyroid nodules.","PeriodicalId":48815,"journal":{"name":"International Journal of Radiation Research","volume":"17 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90394179","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}
Background : This study aims to investigate voxel - level dose calculation methods and improve its calculation efficiency in nuclear medicine that can consider animal - specific heterogeneous tissue compositions and radiopharmaceutical biodistributions simultaneously. Materials and Methods : The voxelized mouse phantom was constructed from real mouse CT images and simulated using the Monte Carlo GEANT4 code. According to the dynamic PET images of real mouse, the real distribution of radiopharmaceutical activity was set in the Monte Carlo simulation. The sampling method to improve the calculation efficiency was proposed. Two voxel - level dose calculation methods were implemented in this study. The average absorbed dose in vital target organs and the tumor was calculated by the proposed voxel - level dose calculation methods and the traditional MIRD method respectively. The results of the average absorbed dose calculated by the two methods were compared. Based on the voxel - level dose calculation method, the three - dimensional dose distribution in organs and the tumor was obtained and evaluated . Results : The relative difference of average absorbed dose between the two voxel - level dose calculation methods was mostly less than 10%. The sampling method proposed to improve calculation efficiency for the voxel - level dose calculation can decrease the calculation time by ~34% with less deviation. Conclusion : The results confirmed that the voxel - level dose calculation methods proposed in this study allow for more accurate and efficient assessment of the internal radiation dose.
背景:本研究旨在探讨核医学中同时考虑动物特异性异质组织组成和放射性药物生物分布的体素水平剂量计算方法，并提高其计算效率。材料与方法:以真实小鼠CT图像为基础，构建体素化小鼠体模，利用Monte Carlo GEANT4代码进行模拟。根据真实小鼠的动态PET图像，在蒙特卡罗模拟中设置了放射性药物活性的真实分布。提出了提高计算效率的抽样方法。本研究采用了两种体素级剂量计算方法。分别采用所提出的体素水平剂量计算方法和传统的MIRD方法计算靶器官和肿瘤的平均吸收剂量。比较了两种方法计算的平均吸收剂量。基于体素水平剂量计算方法，得到了器官和肿瘤内的三维剂量分布，并对其进行了评价。结果:两种体素级剂量计算方法的平均吸收剂量的相对差异均小于10%。为提高体素级剂量计算的计算效率，提出的采样方法可使计算时间减少34%，且误差较小。结论:本研究提出的体素水平剂量计算方法能够更准确、更有效地评估内照射剂量。
{"title":"Voxel-based dose calculation of radionuclide imaging and therapy for preclinical studies using GEANT4 Monte Carlo simulation","authors":"H. Liu, C. Geng, X. Tang, L. Tang, X. Li, P. Xu","doi":"10.52547/ijrr.20.2.9","DOIUrl":"https://doi.org/10.52547/ijrr.20.2.9","url":null,"abstract":"Background : This study aims to investigate voxel - level dose calculation methods and improve its calculation efficiency in nuclear medicine that can consider animal - specific heterogeneous tissue compositions and radiopharmaceutical biodistributions simultaneously. Materials and Methods : The voxelized mouse phantom was constructed from real mouse CT images and simulated using the Monte Carlo GEANT4 code. According to the dynamic PET images of real mouse, the real distribution of radiopharmaceutical activity was set in the Monte Carlo simulation. The sampling method to improve the calculation efficiency was proposed. Two voxel - level dose calculation methods were implemented in this study. The average absorbed dose in vital target organs and the tumor was calculated by the proposed voxel - level dose calculation methods and the traditional MIRD method respectively. The results of the average absorbed dose calculated by the two methods were compared. Based on the voxel - level dose calculation method, the three - dimensional dose distribution in organs and the tumor was obtained and evaluated . Results : The relative difference of average absorbed dose between the two voxel - level dose calculation methods was mostly less than 10%. The sampling method proposed to improve calculation efficiency for the voxel - level dose calculation can decrease the calculation time by ~34% with less deviation. Conclusion : The results confirmed that the voxel - level dose calculation methods proposed in this study allow for more accurate and efficient assessment of the internal radiation dose.","PeriodicalId":48815,"journal":{"name":"International Journal of Radiation Research","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82903566","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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