Objective To evaluate the prevention and control effectiveness of four major chronic diseases in Youyang County, and find the weak link of prevention and control, and to provide theoretical support for improving prevention and control strategies. Methods Based on the death data of permanent residents from 2012 to 2020 extracted from the cause-of-death registration and reporting system of Youyang County, a statistical analysis was conducted using SPSS19.0. The annual percentage change (APC) was tested by t-test. Results From 2012 to 2020, the mortality rate of and the standardized mortality rate of the four major chronic diseases and the premature mortality rate of diabetes in males showed an increasing trend (APC was 3.05%, 1.82% and 27.12%, respectively, P < 0.05). The mortality rate of the four chronic diseases in females increased (APC was 2.53%, P < 0.05), while the proportion of premature death of the four chronic diseases and the probability of premature death of cardiovascular and cerebrovascular diseases in females decreased (APC was -2.37%, -5.73%, P < 0.05). The standardized mortality rate and premature death rate of the four major chronic diseases were higher in males than those in females. The mortality rate of the four major chronic diseases and the premature death rate of diabetes in the whole population were on the rise (APC was 2.84% and 12.86%, P < 0.05). It was expected that the early death probability of the four major chronic diseases in Youyang County would be 12.65% in 2030, higher than the target value of 12.59% of ^“Healthy China 2030^”. Conclusion The future focus of Youyang County is to prevent and control malignant tumors and diabetes, especially to strengthen the prevention and control of male diabetes.

Objective To explore the diagnostic value of dual-energy CTA in detection of intracrania[aneurysms by using Meta-analysis.Methods Taking "Dual energy"," intracranial aneurysms" or "subarachnoid hemorrhage" as key words,related literatures of diagnostic accuracy of intracrania[aneurysms by using dual-energy CTA compared with DSA were extracted from Wanfang database,CNKI,Chinese biomedical database and PubMed from January 2006 to January 2017.The quality of included literatures was assessed.MetaDISC1.4 was used for Meta-analysis to examine the heterogeneity among the studies and to analyze the diagnostic accuracy index.The forest map was drawn.The summary operating characteristic curve was analyzed.Results Fifteen studies without heterogeneity were considered for analysis.The pooled sensitivity,specificity,positive likelihood ratio and negative likelihood ratio was 0.97 (95 ％CI [0.96,0.99]),0.99 (95 ％ CI [0.97,1.00]),21.71 (95％CI [12.10,38.96]) and 0.04 (95％CI [0.03,0.07]),respectively.The value of OR was 703.4 (95％CI [303.96,1 627.74]).The area under the curve of summary ROC was 0.990 8.The maximum value (Q value) of sensitivity and specificity was 0.992 5.Conclusion Dual-energy CTA has high sensitivity and specificity in diagnosis of intracranial aneurysms,therefore can be taken as the first choice for patients with suspected intracranial aneurysms.

Objective To evaluate the feasibility of the lateralization of unilateral medial temporal lobe epilepsy(mTLE)by using arterial-spin-labeling(ASL)based perfusion MR imaging and investigate the changes of perfusion in the regions related to mTLE network and the relationship between the perfusion and the clinical status.Methods Twenty-five patients with left-sided and 23 with right-sided mTLE were enroiled,and 30 healthy volunteers were recruited.The cerebral blood flow(CBF)of related region was measured based on pulsed-ASL sequence on Siemens 3 T scanner.The CBF of the mTLE group were compared with that in the controls by using ANOVA analysis.The asymmetric indices of CBF in the medial temporal lobe were calculated as the lesion side compared with the normal side in matched region in mTLE group.Results Compared with the volunteers,the patients with mTLE showed the decrease of CBF in the bilateral medial and lateral temporal,the frontal and parietal regions relating to the default-mode network and more serious in lesion side.The CBF values of the medial temporal lobe were negatively correlated with the epilepsy duration(r =-0.51,P ＜0.01).The asymmetric index of CBF as-0.01 has a 76.0％(19/25)sensitivity and a 78.3％(18/23)specificity to distinguish the lesion side.Conclusions The decrease of CBF in the temporal and extra-temporal region by ASL-based MRI suggests the functional abnormalities in the network involved by mTLE.The ASL technique is a useful tool for lateralizing the unilateral mTLE.