Objective To discuss the standardized management strategies of medical equipment quality control in the whole life cycle of medical equipment.Methods The quality control was prepared from the aspects of management,technology and materials firstly,then quality control object was determined through a comprehensive risk rating system with quantitative values at risk,and overall analysis was executed with PDCA method finally.Results The management of medical equipment quality control was further standardized,the risks during medical equipment utilization were reduced,and the comprehensive benefit of the hospital was increased.Conclusion The standardized management of medical equipment quality control is of great importance to enhance medical quality.

AIM: To apply the natural fermentation technology to produce indigo. METHODS: Fresh leaves of conehead were put in water and let its ferment naturally, then add lime to fermentation liquor to naturalize,indigo content was determined by HPLC. RESULTS: Fermentative temperature at 28 ℃ and oxygen supply were most important condition. CONCLUSION: Fungi can be successfully applied to indigo production.

Hybridomas producing monoclonal antibodies (McAb) directed against Trichomonas vaginalis have been produced by fusing NSI myeloma cells with spleen cells of BALB/c mice immunized with Trichomonas vaginalis.IFA technique was used to test the binding activity of four McAbs produced.The McAb belonged to the IgG subtypes IgGl(2A2,2A4 McAb),IgG3 (2H9 McAb) and IgG 2b (2A12 McAb).Three McAbs,designated 2A2,2A4,2A12,reacted with a surface membrane component of live Trichomonas vaginalis.One (2A12) of them produced com-plement-dependent cytolysis of the parasites.Others (2A2.2A4) produced complement-independent cytotoxicity of the parasites.2H9 McAb which reacted with the nucleus of the organisms did not agglutinate the parasites.The four McAbs which did not have cross reaction with some protozoa of Zoomastigophorea species were specific antibodies against Trichomonas vaginalis.(Figs.1-3)

Objective To Analyze the clinical outcomes of pediatric liver transplantation (LT) for liver-based metabolic disorders.Methods We conducted a retrospective analysis on 42 pediatric patients with liver-based metabolic disorders from June 2013 to March 2017,and analyzed the pediatric end stage liver disease model (PELD),growth and development,type of transplant,postoperative complications and prognosis of patients.Results There were 42 children with liver-based metabolic disorders (15.56%) out of all the 270 children who underwent LT.The median age was 51.0 months (range,3.4-160.9 months).Of the 42 children,19 received living donor liver transplantation (LDLT),18 cases received deceased donor liver transplantation (DDLT) and 5 cases received domino liver transplantation.1-,2-and 3-year cumulative survival rate of 42 recipients was 97.7%,93.6% and 93.6%,and that of the grafts was 95.3%,91.4% and 91.4%,respectively.As compared with the 194 children with biliary atresia who underwent LT,significant difference was found in PELD and weight Z-score between the two groups.Conclusion Liver transplantation is a valuable option for children with metabolic disorders,and it has gained a better prognosis.

Department of Orthopedics, Yang Pu Hospital Affiliated to Tongji University,

To investigate the magnetic resonance imaging (MRI) features for ductal carcinoma in situ (DCIS) and plasma cell mastitis (PCM) , and to improve diagnostic accuracy for DCIS and PCM. 
 Methods: The MRI morphology confirmed by surgical pathology and dynamic enhancement for 35 patients with DCIS and 45 patients with PCM were retrospectively analyzed, which included T1 pre-scan high signal, enhanced distribution characteristics, internal strengthening mode, whether centrifugation or centripetal diffusion, dynamic enhancement curve morphology, diffusion-weighted imaging (DWI) signal characteristics, and apparent diffusion coefficient (ADC) values. 
 Results: The segmental distribution, clustered ring, T1 pre-catheters diffusion and the dynamic delayed concentric diffusion were more common in DCIS than those in PCM (P<0.05). Regional distribution, internal heterogeneity enhancement, and enhanced delay period eccentric diffusion were more common in PCM than those in DCIS (P<0.05). In the PCM group, nipple repertoire, DWI center high signal, adjacent skin thickening, and sinus formation were significantly higher than those in the DCIS group (P<0.05).
 Conclusion: Both DCIS and PCM show a non-mass like enhancement on MRI. Images in DCIS mostly show duct-like, branch-like and segment-like distribution. The internal enhancement mode is centripetal diffusion. Images in PCM mostly show regional distribution, and the inside displays heterogeneity enhancement with the adjacent skin thickening and nipple subsided.
Breast Neoplasms ; diagnostic imaging ; Carcinoma, Ductal, Breast ; diagnostic imaging ; Contrast Media ; Diagnosis, Differential ; Female ; Humans ; Magnetic Resonance Imaging ; Mastitis ; diagnostic imaging ; Plasma Cells ; pathology ; Retrospective Studies