Development and preliminary application of the information monitoring system for radiological protection / 中华放射医学与防护杂志

Objective:To develop an information system for testing radiological protection that can interface with National Radiation Health Information Platform/Medical Radiation Monitoring Subsystem and to improve the testing efficiency.Methods:Complying with the relevant national regulations and standards, the analysis was carried out of demand investigation and system modeling. An information system for testing radiological protection was established using B/S architecture, comprising three modules such as testing, audit and system management. The users at four levels were set of administrator, inspector, auditor and report issuer.Results:Based on test result, the developed information system has been shown to realize the informatization of the whole process from filling, auditing, issuing, issuing of the testing report to data uploading, with improved testing efficiency.Conclusions:The developed information system for testing radiological protection can improve the testing efficiency, and can be successfully interfaced with the National Radiation Health Information Platform/Medical Radiation Protection Monitoring Subsystem.

Personal dose monitoring results of 307 interventional radiology workers in Liaoning Province, China / 中国辐射卫生

Objective To investigate the personal dose level of occupational external exposure among interventional radiology workers in Liaoning Province of China, and to provide a reference for better occupational radiation protection. Methods According to the national standard GBZ 128—2016 Specifications for individual monitoring of occupational external exposure, the thermoluminescence method was used to measure the monitoring dose inside the lead clothes (HW) and outside the lead clothes (HN) of interventional radiology workers, and the Mann-Whitney U test and the Kruskal-Wallis H test were used for statistical analysis. Results Dual dosimeter monitoring data were collected from 307 interventional radiology workers in Liaoning Province in 2019, with a mean annual effective dose of 0.81 mSv and a maximum annual effective dose of 7.03 mSv, and 72.96% of the workers monitored had an annual effective dose of less than 1 mSv. The interventional radiology workers in tertiary hospitals had a significantly higher mean annual effective dose than those in secondary hospitals (0.95 mSv vs 0.65 mSv, P < 0.05). There was a significant difference in mean annual effective dose between departments (P < 0.05), and the department of interventional radiology had a significantly higher mean annual effective dose than the other departments (0.92 mSv vs 0.64 mSv), while the department of cardiology had a similar mean annual effective dose to the cerebrovascular department (0.78 mSv vs 0.78 mSv). Conclusion The occupational exposure dose of 307 interventional radiology workers in Liaoning Province meets the requirements in national regulations and standards and is higher than the national level, which suggests that radiation protection supervision and personal training should be further strengthened for interventional radiology.

Effect of behavioral intervention on the prognosis of patients with carotid artery stenting / 中华行为医学与脑科学杂志

Objective:To explore the effects of behavior intervention on patients with ischemic cerebrovascular disease recurrence, carotid artery stenosis recurrence, and quality of life after carotid artery stenting implantation.Methods:Sixty patients with carotid stenosis who underwent stenting surgery between January 2017 and July 2018 in Affiliated Hospital of Jining Medical University were recruited.The subjects were randomly divided into behavioral intervention group and control group.The control group was routinely followed up after carotid artery stenting implantation.The behavioral intervention group added home visit, education, guidance of the control and detection of risk factors for cerebrovascular disease of stent implantation.Results:After 12 months of intervention, the incidence of ischemic cerebrovascular disease and the recurrence rate of carotid restenosis in the behavioral intervention group(6.7%, 3.3%) were significantly lower than those in the control group(30.0%, 20.0%) (both P<0.05). Six months after the intervention and 12 months after the intervention, the self-management ability score (intervention group: six months after the intervention (171.20±18.43), 12 months after the intervention (179.90±14.34); control group: six months after the intervention (160.77±13.43); 12 months after the intervention (164.27±14.85)) and quality of SS-QOL score (intervention group: 6 months after intervention (188.47±16.25), 12 months after intervention (203.17±13.84); control group: 6 months after intervention (170.67±15.82); 12 months after intervention (183.80±18.19)of the intervention group were higher than that of the control group, the difference is statistically significant (all P<0.05). Conclusion:Behavioral intervention after carotid artery stenting implantation can effectively reduce the incidence of stroke and the recurrence rate of carotid stenosis and improve the prognosis of patients.The mechanism may be related with that the behavioral intervention can improve the self-management ability and the quality of life of patients with carotid stenosis.

Relationship of MR diffusion tensor imaging for corpus callosum and cingulate bundles with cognitive impairment in SIVD patients / 中华老年心脑血管病杂志

Objective To study the relationship of MR diffusion tensor imaging for corpus callosum and cingulate bundles with cognitive impairment in subcortical ischemic vascular dementia (SIVD) patients.Methods Sixty elderly SIVD patients admitted to our hospital from July 2015 to June 2016 served as a SIVD group and 40 age-matched persons undergoing physical examination served as a control group in this study.The mean ADC and FA were calculated according to the MR diffusion tensor imaging parameters in region of interest.Relationship between fiber tract integraty and MMSE Scale score was compared between the two groups.Results The ADC was significantly higher while the FA was significantly lower for the genu of corpus callosum in SIVD group than in control group.However,no significant difference was found in ADC for the spenium of corpus callosum between the two groups (P＞0.05).The ADC was significantly higher while the FA was significantly lower for bilateral cingulate bundles (P＜0.05,P＜0.01).The FA for the genu of corpus callosum and bilateral cingulate bundles was positively related with the MMSE Scale score (r=0.511,r=0.469,r=0.457,P＜0.05).However,the FA for the splenium of corpus callosum was not related with the MMSE Scale score(r=0.364,P＞0.05).Conclusion Changes of MR diffusion tensor imaging parameters in corpus callosum and cingulate bundles contribute to the early prevention and treatment of cognitive impairment in SIVD patients.

Baseline investigation on mortality from malignant tumor from 2006 to 2009 around Hongyanhe Nuclear Power Plant,Liaoning Province / 中华放射医学与防护杂志

objective To understand the baseline data of mortality from malignant tumor from 2006 to 2009 around Hongyanhe Nuclear Power Plant in Wafangdian City,Liaoning Province,so as to provide scientific basis for evaluating the impact of normal operation of nuclear power plant on the health of the residents nearby.Methods Thirty small towns near Hongyanhe Nuclear Power Plant were divided into 5 investigated areas according to the distances away therefrom(0.,10.,20-,30-,and 40-km).The data about from malignant tumor were obtained from the Center for Disease Control and Prevention of Wafangdian.The mortality distribution of difierent malignant tumors was analyzed,including the radiosensitive malignant tumors,especially leukemia,breast cancer,and thyroid gland cancer in different area,gender,and age groups.Results The mortality from malignant tumor was 151.97/105,and the standardized mortality rate(SMR)was 97.76/105.The mortality from malignant tumor among the males was 188.28/105(with the SMR of 116.76/105),and that among the females was 113.47/105(with the SMR of 75.89/105).with a sex ratio of 1.71.The first five cancers in the rank of death causes were lung,liver,stomach,colorectal,and esophageal cancers with mortality of 46.19/105,23.51/105,20.30/105,8.06/105 and 5.45/105,respectively.The mortality from mal.ignant tumor in the areas around the nuclear power plant from the near to the distant were 99.85/105, 137.40/105,138.73/105,156.30/105,and 154.16/105,respectively.The mortality from radiosensitive malignant tumors,leukemia,breast cancer,and thyroid gland cancer were 4.57/105,4.06/105,and 0.26/105,respectively.Conclusions Lung cancer and digestive tract malignant tumors are the main causes of death from malignant tumors in Wafangdian area before the nuclear power plant began to operate.There are no significant differences in the mortality distribution of malignant tumors among different areas,genders,and age groups.There are not significant differences in the mortality distribution of leukemia and breast cancer among different areas and age groups.