Although the occurrence of coronary stent fracture is rare, recent reports showed that stent fracture after sirolimus-eluting stent (SES) implantation may be associated with neointimal hyperplasia and restenosis. We r...Although the occurrence of coronary stent fracture is rare, recent reports showed that stent fracture after sirolimus-eluting stent (SES) implantation may be associated with neointimal hyperplasia and restenosis. We report two cases of stent fracture that occurred late after elective SES implantation into the right coronary artery (RCA) that were related to the aneurysm, restenosis, thrombosis, and vessel occlusion.展开更多
Space Environment Simulation and Research Infrastructure(SESRI)developed for Harbin Institute of Tech-nology is composed by many facilities including a proton accelerator with a maximum acceleration energy of 300 MeV....Space Environment Simulation and Research Infrastructure(SESRI)developed for Harbin Institute of Tech-nology is composed by many facilities including a proton accelerator with a maximum acceleration energy of 300 MeV.The 300 MeV ion accelerator radiation protection system consists of a dose monitoring system and a personal safety interlock system(Fig.1).展开更多
Induced radioactivity in the treatment room(uniform scanning model)was investigated on Gansu Heavy Ion Tumor Hospital,a medical facility independently developed by the Institute of Modern Physics.The induced radioacti...Induced radioactivity in the treatment room(uniform scanning model)was investigated on Gansu Heavy Ion Tumor Hospital,a medical facility independently developed by the Institute of Modern Physics.The induced radioactivity of beam delivery system,patients,air,and the dose of medical sta,patients,and carers from the induced radioactivity were examined by the Monte Carlo simulation and experimental measurement.展开更多
In accordance with the recommendations of IAEA 398 Technical report and AAPM TG51 report of the American Association of Medical Physicists,it is necessary to establish the necessary metrology support capacity for the ...In accordance with the recommendations of IAEA 398 Technical report and AAPM TG51 report of the American Association of Medical Physicists,it is necessary to establish the necessary metrology support capacity for the measuring equipment of radiation therapy in proton and heavy ion therapy centers,as well as equipment for personnel radiation safety protection and radiation environment monitoring.展开更多
Background The prevalence of metabolic syndrome （MetS） increased recently and there was still not a screening index to predict MetS.The aim of this study was to estimate whether brachial-ankle pulse wave velocity （...Background The prevalence of metabolic syndrome （MetS） increased recently and there was still not a screening index to predict MetS.The aim of this study was to estimate whether brachial-ankle pulse wave velocity （baPVVV）,a novel marker for systemic arterial stiffness,could predict MetS in Chinese community population.Methods A total of 2 191 participants were recruited and underwent medical examination including 1 455 men and 756 women from June 2011 to January 2012.MetS was diagnosed according to the criteria of the International Diabetes Federation （IDF）.Multiple Logistic regressions were conducted to explore the risk factors of MetS.Receiver operating characteristic （ROC） curve was performed to estimate the ideal diagnostic cutoff point of baPWV to predict MetS.Results The mean age was （45.35±8.27） years old.In multiple Logistic regression analysis,the gender,baPWV and smoking status were risk factors to MetS after adjusting age,gender,baPWV,walk time and sleeping time.The prevalence of MetS was 17.48% in 30-year age population in Shanghai.There were significant differences （Х^2=96.46,P 〈0.05） between male and female participants on MetS prevalence.According to the ROC analyses,the ideal cutoff point of baPWV was 1 358.50 cm/s （AUC=60.20%） to predict MetS among male group and 1 350.00 cm/s （AUC=70.90%） among female group.Conclusion BaPWV may be considered as a screening marker to predict MetS in community Chinese population and the diagnostic value of 1 350.00 cm/s was more significant for the female group.展开更多
文摘Although the occurrence of coronary stent fracture is rare, recent reports showed that stent fracture after sirolimus-eluting stent (SES) implantation may be associated with neointimal hyperplasia and restenosis. We report two cases of stent fracture that occurred late after elective SES implantation into the right coronary artery (RCA) that were related to the aneurysm, restenosis, thrombosis, and vessel occlusion.
文摘Space Environment Simulation and Research Infrastructure(SESRI)developed for Harbin Institute of Tech-nology is composed by many facilities including a proton accelerator with a maximum acceleration energy of 300 MeV.The 300 MeV ion accelerator radiation protection system consists of a dose monitoring system and a personal safety interlock system(Fig.1).
文摘Induced radioactivity in the treatment room(uniform scanning model)was investigated on Gansu Heavy Ion Tumor Hospital,a medical facility independently developed by the Institute of Modern Physics.The induced radioactivity of beam delivery system,patients,air,and the dose of medical sta,patients,and carers from the induced radioactivity were examined by the Monte Carlo simulation and experimental measurement.
文摘In accordance with the recommendations of IAEA 398 Technical report and AAPM TG51 report of the American Association of Medical Physicists,it is necessary to establish the necessary metrology support capacity for the measuring equipment of radiation therapy in proton and heavy ion therapy centers,as well as equipment for personnel radiation safety protection and radiation environment monitoring.
基金This work was supported by grants from the National Natural Science Foundation of China （No. 81170325）, International S＆T Cooperation Program of China （No. 2011DFB30010）.Acknowledgements： We are grateful to all subjects for their enthusiastic participation. We are also indebted to Xiu Jianfeng and Wu Lezou for their pioneering work.
文摘Background The prevalence of metabolic syndrome （MetS） increased recently and there was still not a screening index to predict MetS.The aim of this study was to estimate whether brachial-ankle pulse wave velocity （baPVVV）,a novel marker for systemic arterial stiffness,could predict MetS in Chinese community population.Methods A total of 2 191 participants were recruited and underwent medical examination including 1 455 men and 756 women from June 2011 to January 2012.MetS was diagnosed according to the criteria of the International Diabetes Federation （IDF）.Multiple Logistic regressions were conducted to explore the risk factors of MetS.Receiver operating characteristic （ROC） curve was performed to estimate the ideal diagnostic cutoff point of baPWV to predict MetS.Results The mean age was （45.35±8.27） years old.In multiple Logistic regression analysis,the gender,baPWV and smoking status were risk factors to MetS after adjusting age,gender,baPWV,walk time and sleeping time.The prevalence of MetS was 17.48% in 30-year age population in Shanghai.There were significant differences （Х^2=96.46,P 〈0.05） between male and female participants on MetS prevalence.According to the ROC analyses,the ideal cutoff point of baPWV was 1 358.50 cm/s （AUC=60.20%） to predict MetS among male group and 1 350.00 cm/s （AUC=70.90%） among female group.Conclusion BaPWV may be considered as a screening marker to predict MetS in community Chinese population and the diagnostic value of 1 350.00 cm/s was more significant for the female group.
