As a functional imaging method, positron emission tomography (PET) is widely used in tumor diagnosis, pathological classification, stage assessment, and clinical outcome evaluation. Combination of metabolic information acquired from ~(18)F-fluorodeoxyglucose (~(18)F-FDG) PET with pathological grading results is helpful for further defining the grade of sarcomas and predicting prognosis. ~(18)F-FDG PET appears to be superior to other imaging modalities in detecting bone metastases or pulmonary metastases of sarcoma patients, so it could be used in clinical staging and restaging of sarcoma. Tumor-to-background ratio (TBR) and standardized uptake value (SUV) are two important parameters for quantitative analysis and are helpful for assessing chemotherapy response of tumor. PET imaging offers important information to help maximize the clinical benefit of patients with sarcoma. This article reviews the clinical value of ~(18)F-FDG PET and ~(18)F-FDG PET/CT in diagnosis of sarcoma.

OBJECTIVE:To provide reference for the further improvement of national essential medicines system. METHODS:Taking theBull's-eyecity Chengdu as an example,based on the trading areas,the existing problems in implementing essential medicine system were analyzed by qualitative and quantitative research methods,and countermeasures were put forward. RESULTS:From the point of view of quantitative data,the first level trading areas of both proportions of medical personnel per thousand ur-ban population and numbers of primary medical and health institutions per 100 thousands population in Chengdu were the lowest. From 2010 to 2012,the outpatient and inpatients increased 1.09 million people and 0.16 million beds per day in Chengdu primary health care institutions,the largest increase in the first level trading areas,and increase and decrease in the second and third level trading areas;outpatient and inpatient drug costs fell respectively 4 yuan and 109 yuan,medicine proportion declined 6.7%,in-crease in the first level trading areas,and decreased to varying degrees in the second and third level trading areas. From the point of view of qualitative interviews,the service ability got enhancement,but still could not meet the services demand,especially the pressure in the first level trading areas near center district remains heavy;drug cost was under controlled,but the subsidies needs to be increased,the per capita drug costs in the first level trading areas remains high;the drug income and medicine proportion were inhibited,especially the significant fell in the second and third level area,but the decrease of income may restrict develop-ment. CONCLUSIONS:It is suggested that more targeted drugs are needed for meeting the services demand,more sophisticated policy are needed for improving the subsidies,and more comprehensive medical conditions are needed for ensuring institutions'de-velopment.

Objective: Finding the essence and regular pattern of the construction of male urine collection devices, and setting up its basic concepts. Methods:Selecting typical construction examples, then analyzing them singly and as a whole. Results:Setting up concepts such as construction module, construction factor, construction factor unit, construction index, construction array etc., and giving out the table of construction factor units. Conclusion:This research has provided mode, methods, means for understanding and further analyzing, studying male urine collection devices.

【Objective】 To explore the viability of improved comparability verification method for the performance verification of automatic biochemical analyzer in blood centers. 【Methods】 According to the relevant requirements of User Verification of Performance for Precision and Trueness; Approved Guideline-Second Edition (EP15-A2) and Guideline for Comparability Verification of Quantitative Results with One Health Care System(WS/T 407-2012), the performance of the newly purchased Beckman Coulter AU480 automatic biochemical analyzer was confirmed by means of comparability verification, and compared with the current Olympus AU400 automatic biochemical analyzer. 【Results】 The detection results given by Beckman AU480 biochemical analyzer on 5 samples for ALT detection performance test were significantly correlated with the target value (R²=0.998), and the trueness verification results met the requirements.The CV of medium and high ALT levels was 2.36% and 1.20%, respectively, within the acceptable standard range(<5%), and the precision verification results meet the requirement.The comparison deviation of two devices for medium and high ALT levels was 0.47% and 1.62%, respectively, within the acceptable standard range (<5%). The detection results of ALT from 40 blood donors given by two devices were significantly correlated (R²=0.956), and the precision verification results met the requirements.In the validation of linear evaluation, there was a good linear relationship between the expected and measured results (r=0.997)among samples with 6 levels of concentrations. 【Conclusion】 The comparability verification method is suitable for the performance verification of automatic biochemical analyzer in blood centers.

Objective To investigate the effect of the use of audio and video feedback on the rehabilitation of patients with ankylosing spondylitis (AS). Methods 60 AS patients were divided into two parts (32 in the experimental group and 28 in the control group) by random number table method, and two groups of patients were treated with the same drug treatment. Patients in the control group were instructed by oral instruction, in the experimental group, the use of audio and video feedback teaching guide patients family exercise, compared with the two groups of patients with four months of follow-up, family exercise compliance, joint function and quality of life, and other indicators. Results Four months after the intervention, the experimental group patients family exercise compliance was better than 84%(27/32), higher than the control group of 36% (10/28), the difference was statistically significant (χ2=9.238, P < 0.01). Patients in the experimental group in four months after the intervention, the health questionnaire to investigate the physiological function, role limitation due to physical problems, body pain, general health, vitality, social function, role limitation due to emotional problems, mental health eight dimension scores respectively were (72.7±8.4), (81.5±9.5), (57.2±8.4), (65.5±8.4), (62.9±7.2), (78.4±7.4), (67.3±6.2), (77.2±7.6) points while in the control group were (60.8±9.1), (72.1±9.6), (50.3±9.4), (60.8±7.0), (58.2±9.1), (74.4±8.7), (60.2±7.2), (74.3±7.4) points, the difference between the two groups had statistical significance (t=1.493-5.266, P < 0.05 or 0.01). Four months after the intervention, the scores of Bath Ankylosing Spondylitis Functional Index (BASFI) of patients with AS in the experimental group were (1.1± 0.8), (1.7±0.2), (1.8±1.3), (1.6±1.0), (3.1±2.1), (1.0±0.6), (1.9±1.6), (3.8±2.5), (2.6±1.7), (2.7±1.6) points, while (3.8±1.6), (2.8±1.5),(2.6±1.5)、(2.8±1.2),(4.4±2.2),(2.2±1.0),(3.3±1.6),(6.5±2.5),(5.6±2.6), (4.3 ± 1.5)control group, the two groups the difference was statistically significant (t=0.282-8.427, P<0.05). Conclusions Application of audio and video feedback teaching in patients with AS rehabilitation guidance, help patients to master the family training methods, improve the joint function of patients, improve the quality of life.

Public hospital's public property is mainly reflected in providing people with equitable access, quality and efficiency of basic medical services. However, due to lack of understanding in importance of the medical services positive and negative externalities, lead to the dilution of commonweal of public hospital. Meanwhile, externalities caused by transaction costs and unclear property rights in medical services activities further exacerbate welfare fade. The government should take effective measures to protect and encourage positive externalities, prevent and control the negative externali-ties, and, by way of reducing transaction costs, clear property rights to resolve external effects, as far as possible to pro-tect the public interest in public hospitals.

Objective To explore the classification , age , ratio of gender , to provide clinical basis for prevention and treatment of pediatric eye diseases. Methods Clinical data of 0-14 year old patients with eye diseases from January 1993 to December 2014 were collected and analysized. Results The total rate of boy and girl is 2.14:1. Boys with ocular trauma were much more than girls , and the ratio of boy and girl is 3.7:1. The peak occurrence age of ocular trauma was 8 to 11 year old , 0-7 year old children with eye diseases mainly contained congenital diseases such as congenital cataract and congenital ptosis. Children between 7 to 14 year old were more liability to intermittent exotropia and accommodative esotropia. Retinopathy of prematurity was the most common eyeground disease. The most popular tumor were major in corneal dermoid and retinal glioblastoma, potential age was 1-6 year old. Conclusion Pediatric eye diseases should be paid more attention. Ocular examination were needed to be done periodically , primary diseases should be treated early , occurrence should be prevented depending on different ages , to protect the ocular function of children.

Objective: ①To detect the concentrations of interleukin 1?(IL 1?) and prostaglandin E 2 (PGE 2) in periapical exudates in the patients with acute or chronic periapical periodontitis; ② To examine their correlations with clinical and radiographic findings of the involved teeth.Methods: The volume of periapical exudates was quantified using the standard paper point sampling method; the concentration of IL 1? and PGE 2 was detected using enzyme linked immunosorbent assay(ELISA) or radioimmunoassay(RIA) in 40 cases with acute and in 40 with chronic periapical periodentitis. Results: ①The volume(?l) of the exudates in the cases with acute periapical periodontitis and chronic were 27.10?15.70 and 3.12?2.88( P

0.05).It is concluded that furazolidone in small doses is as efficacious as Denol in the treatment of duodenal ulcer and the clearance of H.pylori,and it be a safe substitute for the routine dose of furazolidone for the treatment of duodenal ulcer.

Objective To study the correlation between histopathological findings and X-ray appearances of ameloblastomas.Methods X-ray characteristics and histopathological features in 153 cases of ameloblastomas were analyzed retrospectively, and their relation was comparatively analyzed. Results ① On radiography,the lesions appeared as multilocular in 82 cases(53.59) and unilocular in 71 cases(46.41). ② 96 cases were classic ameloblastomas,including follicular type in 13 cases and non-follicular type in 83 cases,X-ray showed unilocular appearance in 35(36.46) and multilocular appearance in 61 cases(63.54).57 cases were unicystic ameloblastoma ,X-ray showed unilocular appearance in 36 cases(63.16) and multilocular appearance in 21 cases(36.84).There was significant diffrence statistically in the X-ray features of uniloculus and multiloculus between the two histopathological patterns(P﹤0.005). Conclusion Unicystic ameloblastomas often have unilocular radiologic appearance,classic ameloblastomas are mostly of multilocular radiologic appearance,while,the honeycomb radiologic appearances are common seen follicular type ameloblastoma.