Objective:To investigate the routine maintenance and inspection methods of magnetic resonance imaging (MRI) equipment, reduce the failure rate and improve the image quality, and ensure the normal operation of medical image diagnostic equipment.Methods:According to the characteristics of the equipment, to make maintenance inspection goals and complete the daily management of MRI equipment. According to the medical equipment management system requirements, to establish and maintain records to provide data to meet the requirements and the effective operation of quality management system, and to record the data for each equipment for continuity and traceability.Results: There are the potential problems through the management and analysis of MRI equipment data. And the problems were timely solved to make the device operate steady. It’s easy to get a clear and reliable image and to provide an objective and true diagnostic basis for clinical.Conclusion: The routine maintenance and inspection of MRI equipment is an indispensable and important work in medical engineering.

Objective: To study the relationship between negative behavior of preschool children and behavior of their mothers. Method.. 742 mothers of children in their 3 ～ 6 year old age were tested by self- made questionnaire. Results: Negative behavior was not significantly related to age and gender of children. It was negatively related to maternal supporting behavior and positively to maternal un- supporting behavior. The culture background (urban/rural), family income and mother' s occupation were found to be important factors mediating maternal un- supporting behavior. Conclusion: Negative behavior of preschool children is influenced by mother' s behavior, which in turn has its cultural - economical background.

Objective To understand the current situation of multidrug-resistant organism (MDRO)infection in hospitalized patients in a tertiary first-class hospital,as well as efficacy of bundle intervention measures on preven-tion and control of infection. Methods Hospitalized patients who were infected with MDROs in this hospital during 2012-2014 were monitored and conducted bundle intervention. Results In 2012-2014,a total of 1909 MDRO strains were isolated. The isolation rates of MDROs in 2012-2014 were 30.69% ,31 .04% ,and 29.40% respec-tively,bedside intervention rates were 81 .02% ,92.05% ,and 94.23% respectively,implementation rates of clinical isolation were 69.97% ,82.98% ,and 93.04% respectively;MDRO isolation rates during 2012-2014 were not sig-nificantly different(P>0.05);bedside intervention rates and implementation rates of clinical isolation were both sig-nificantly different(both P<0.05). The top 3 isolated MDROs in 2012-2014 were extended-spectrumβ-lactamases (ESBLs)-producing Escherichia coli,multidrug-resistant Acinetobacter baumannii,and ESBLs-producing Klebsiel-lapneumoniae. Conclusion Bundle intervention measures,such as multi-department collaboration and strengthened on-site supervision,can promote more standardized management of healthcare-associated infection,enhance the im-plementation rate of clinical isolation,and effectively prevent and control the spread of MDRO in hospital.

DNA ; chemistry ; Genes ; Genes, erbB-2 ; Humans ; Pathology ; trends

Since portal vein arterialization(PVA) was firstly introduced as a treatment in patients with portal hypertension due to liver cirrhosis, the concept of PVA has drawn much attention. In special situations, in hepatobiliary surgery, this procedure remains useful. However, PVA is unphysiological and there is much controversy on its use.This article reviews the current status of PVA in hepatic artery resection or injury, in acute liver failure and in liver transplantation, and suggests future directions in research in PVA.

The article introduces the properties of public health enterprise in current China and concomitant conflicts.The manifestations,causes and solutions to the conflicts are discussed so as to provide some proposals to solve relative problems for improving the physician-patient relationship and health service.

Objective The aims of the present study are to further investigate mechanism of toxicological role of sulfur dioxide (SO 2) exposure on mammalian animals Methods Effects of SO 2 inhalation (14 mg/m 3) on activities of antioxidative enzymes and levels of lipid peroxidation in erythrocytes of male rats were determined Results SO 2 inhalation caused the decrease of Cu,Zn SOD activity,the increase of GSH Px activity,and no change of CAT activity,and the increase of level of lipid peroxidation in rat erythrocytes Conclusion Primary mechanism of toxicological role of SO 2 exposure at low concentrations may be that oxidation damages of lipid and other biological large moleculars are caused by SO 2 producing reactive oxygen species

The optimal treatment of elderly women with breast cancer still faces many difficulties. Life expectancy, comorbidity, and functional status influence clinical decision and survival. Standard adjuvant medical treatments should not be withheld from healthy older patients with reasonable life expectancies. In this study, adjuvant medical treatment literatures for elderly breast cancer patients, including endocrine therapy, chemotherapy, and HER2-targeted therapy, were reviewed, focusing on efficacy and toxicity of drugs for elderly women.

Objective: To evaluate the clinical effect of the double-orifice technique in the treatment of the anterior leaflet prolapse of mitral valve. Methods: 35 patients with severe anterior leaflet prolapse of mitral valve underwent valve repair using the double-orifice technique. The condition of valve was assessed with echocardiography preoperatively, intraoperatively, and postoperatively. Results: The mean postoperative valve area was (4 1?1 8) cm 2 against the preoperative valve area of (8 3?1 6)cm 2. Mild regurgitation was found in 2 patients after operation. There were no hospital deaths. At the latest follow-up, the heart function was improved significantly in all patients (NYHA class I). Echo-Doppler assessment of valve showed stable valve function in all patients. There were no late stenosis of valve and no late death. Conclusion: The results of this study show that the double-orifice technique is a safe and effective method for treatment of anterior leaflet of mitral valve with low mortality and morbidity, and excellent early and mid-term results.

Epilepsy was arousing the attention of medical circles because of the complexity of its mechanism and the difficulty of its control.The project which used the pioneering research as the basement and was directed by the chinese medicine used the modern multidisciplinary research technologies and explored the mechanism of the brain damage in epilesy.The project′s treatment idea is different from the others,which provided a new way for seeking new medicines for treating epilepsy.The research techniques took use of the application of the behavioral methods and the electrophysiological methods creatively and the subject firstly used this way to observe it dynamically,which greatly improved the accuracy of evaluating the models and pharmacodynamics studies of the epilepsy.The research method of the project firstly observed the changing mechanism of the brain damage and the regulation of the apoptosis related genes,and even the efficiency of tsaoko-anemarrhenae decoction,which enriched the scientific intension of the decoction.The conclusions palyed a very important role in exploiting the new medicine for treating epilepsy and enriching the knowledge of the five visceras in chinese medicine.