1.Development of a test phantom used for MRI’s quality control
Huan XU ; Qingjun ZHAO ; Qiushi ZHANG
China Medical Equipment 2014;(10):83-85
Objective: Design a test phantom with a full function, simple structure and high accuracy which is used for MRI’s Quality Control. Methods: Through a intensive study in imaging principle of MRI and parameters which effect the image quality ,first come up with the phantom’s performance data, and then determine the technical solutions including the choosing material, processing technology, the machining precision, at last develop a trial set of MRI test phantom using the method of numerical control machining. Make a comparative experiment between this phantom and the similar imported one to analyze the consistency of the results by the two phantoms. Results: The result of all the technical parameters of this phantom is consistent with the result of the imported one. There are some extra test components which the imported phantom doesn’t contain. Some performance data like the low contrast resolution are superior to the imported phantom. Conclusion:This MRI test phantom can satisfy the requirement of the daily quality control work in hospital.
2.Study on the crazy-paving pattern:83 cases of thin-section CT findings
Guokun AO ; Xin DONG ; Jian HONG
China Medical Equipment 2014;(10):75-82
Objective:The purpose of this paper is to illustrate different diseases that cause this crazy-paving pattern and to correlate the thin-section CT findings with the histopathological findings. Methods: A retrospective review of the medical records of our radiological computed tomography database was performed from January 2010 until December 2012,searching for patients reported to have a crazy-paving pattern on a thin-section CT of the chest. In total, 83 patients with a crazy-paving pattern were retained and reviewed. Results:The crazy-paving pattern consists of interlobular septal and intralobular interstitial thickening superimposed on an area of ground-glass attenuation on thin-section CT scans. We identified 83 cases that presented with the crazy-paving pattern, inclould infection(bacterial infection n=6,viral infection n=16,fungal infection n=1,and mixed infection n=12); ARDS n=4; acute pulmonary oedema n=3; interstitial lung disease (UIP, NSIP) n=18; adenocarcinomas n=3; lymphangitis carcinomatosis n=3;lymphoma pulmonary infiltration n=2;radiation pneumonitis n=5;sarcoidosis n=1;alveolar proteinosis n=4;alveolar hemorrhage n=4; lipid pneumonia n=1. Conclusion: The crazy-paving pattern on thin-section CT is a non-specific signs, can be seen in infections, tumor, as well as some cryptogenetic diseases. Nevertheless, familiar with these common diseases, allows us to narrow the differential diagnosis, even prompted the diagnosis of certain diseases in the appropriate clinical setting.
3.Optimization in the construction of the hospital PACS
China Medical Equipment 2014;(10):56-58
Objective:To Integrated PACS and hospital information systems (HIS), and improve the efficiency of PACS, and improve the user experience. Methods:Base on deeply analysis of existing problems in system application, using process optimization, software optimization, and hardware upgrades manner optimize PACS. Results: PACS and HIS realized Integrated, improving the overall performance of the PACS. Enhance the user experience and expand the application scope of PACS. Conclusion: Deeply analysis of existing problems should be done before optimizing the system. Process optimization, software environment optimization should be considered as the most important and upgrading and replacement of the hardware as the secondary.
4.Research on effect of esomeprazole in treating elderly patients with NSAIDs correlated peptic ulcer bleeding
China Medical Equipment 2014;(10):131-133
Objective: To study the effect of esomeprazole in treating elderly patients with NSAIDs correlated peptic ulcer bleeding. Methods: Patients with NSAIDs correlated peptic ulcer bleeding in our hospital from January, 2010-December, 2012 were enrolled and randomly divided into observation group given esomeprazole and control group given omeprazole. Then the baseline data were surveyed and effect of ulcer bleeding, condition of abdominal pain alleviation and ulcer ulcer, adverse reaction cases were observed. Results: (1)there were no significant difference between the baseline data of two group;(P>0.05);(2)in observation group, excellence rate was 42/70(60%), effective rate was 24/70(34.3%), the overall treatment effect was better than that of control group, the difference had statistical significant(P<0.05);(3)there were no significant difference between two group of abdominal pain and ulcer healing;(4) during treatment, there were no serious adverse reactions in the two groups. Conclusion:Compared with omeprazole, esomeprazole has equal effect on abdominal pain relief and ulcer healing, and it is much more effective in treating elderly patients with NSAIDs correlated peptic ulcer bleeding.
5.Practice of standardized management of the portable blood glucose meter
China Medical Equipment 2014;(10):116-117
Objective: To apply the norms of the portable blood glucose meter in clinic and improve the quality and level of blood glucose detection. Methods:The management organization of the portable blood glucose meter was established. The organization understudied the working principles and the advantages and disadvantages of blood glucose meter. The model of the portable blood glucose meter was unified in a medical unit. The performance of the portable blood glucose meter and the biochemical analyzer was compared. The organization established standard operating procedures, strengthen personnel training. The clinical staff takes quality control regular. Results:The qualified rate of the use, the maintenance and the results detection was increased. Conclusion:The standardized management system guarantees the detection result of the portable blood glucose meter.
6.Discussion on medical equipment acceptance
China Medical Equipment 2014;(10):112-113
Objective: Medical equipment acceptance check is very important for proper operation of new medical equipment. Methods: Acceptance of medical equipment is tender documents and contracts based on configuration parameters in the tenders and contracts, performance indicators, with the goods packing list, one by one detailed check. Results: In order to ensure equipment of early procurement is as same as the actual installation equipment. Conclusion: Medical equipment acceptance is the final step of the equipment entering the hospital, Which directly related to the quality of medical equipment and hospital benefit.
7.Research on establishment of information platform of fixed assets
Liming TANG ; Changling WANG ; Yaping HUANG
China Medical Equipment 2014;(10):98-100
Objective: The configuration of fixed assets in hospital, should meet the need of diagnosis, treatment and daily operation. Methods: By considering the input, output and evaluation of fixed assets in the management process, which related to the medium and long term development, we find a way to establish the information platform of fixed assets, which actually conforms to the hospital operation. Results:Effectively, the management of fixed assets was lead to a virtuous cycle. Conclusion: In the management process, economic benefits management, performance and quality management and evaluation should be different among different kinds of fixed assets. Thus, the hospital managers should focus and treat them differently, in order to achieve better or more effective management.
8.Magnetic resonance diffusion weighted imaging in the diagnosis of cerebral infarction
China Medical Equipment 2014;(10):89-91
Magnetic resonance imaging has developed from a single observation of organisms’ anatomy and the change of morphology under the physiological and pathological conditions to the study of biology function and activity mechanism. Furthermore, it has entered into the molecular imaging and functional magnetic resonance imaging (fMRI), and diffusion-weighed imaging (DWI) is one of them, which is mainly used in the early diagnosis of cerebral infraction. This article elaborates diffusion-weighed imaging,the identification of acute and non-acute cerebral infarction by DWI in physiological basis of pathogenesis and the time vale of DWI examination. The author holds the opinion that it is of great significance to distinguish between acute and non-acute cerebral infarction by using DWI and that clinicians may adopt targeted therapies according to the different periods of cerebral infarction in order to avoid unsafe and unnecessarily risky treatments.
9.Different disinfection solution on the disinfection effect analysis of the fiberoptic bronchoscopy biopsy forceps
China Medical Equipment 2014;(10):64-67
Objective: Discuss different sterilization solution on the disinfection effect of fiberoptic bronchoscopy biopsy forceps. Methods:To ethylene oxide sterilization, glutaraldehyde immersion disinfection and high pressure steam sterilization of three methods of fiberoptic bronchoscopy biopsy forceps disinfection sterilization rate, the contamination rate and use fixed number of year for effect comparison. Results: Qualification rate of epoxy ethane sterilizing method were higher than in glutaraldehyde soaking method and high pressure steam sterilization disinfection method, and the pollution rate is significantly lower than the other two groups, the service life of the equipment increase. Conclusion:Low-temperature ethylene oxide sterilization of fiberoptic bronchoscopy biopsy forceps sterilization effect is good, and the pollution rate is low, service life is longer.
10.Analysis on infections caused by MDROs and effect of hospital infection monitoring measures
China Medical Equipment 2014;(10):37-39
Objective: To analyze the condition of infections caused by MDROs and effect of hospital infection monitoring measures. Methods: Patients with MDROs positive from July 2009 to December 2012were prospectively studied and given Bundle monitoring measures, patients with MDROs positive from January 2006 to June 2012 were retrospectively studied, the condition of hospital acquired infections caused by MDROs and the value of hospital infection monitoring measures were analyzed. Results:(1)the total cases of MDROs infection were 1782, including 839 cases of hospital infection and 944 cases of community infection, separately accounted for 47.08% and 52.92%; the incidence of ESBLs-ECO and MRSA were highest, separately 30.04%,39.09%;(2)after monitoring measures, the incidence of MDROs in surgery department(x2=15.273, P=0.001), internal medicine department(x2=7.532, P=0.021), gynaecology(x2=11.842, P=0.008) and obstetrics department(x2=10.842, P=0.010), paediatrics department(x2=8.834, P=0.017) were lower than those of before monitoring measures;(3)the incidence of hospital acquired infections caused by MDROs were negatively correlated with effective monitoring measures and positively correlated with ommunity infection. Conclusion:Bundle monitoring measures can contribute to the control of hospital acquired infections caused by MDROs.