Objective To evaluate MRI in diagnosis and follow-up of Achilles tendon rupture. Methods From April 2003 to May 2005, 24 cases of closed Achilles tendon rupture were examined in our department with MRI. It was performed through sagittal T1WI, T2WI, GE-STIR and axial TME imaging. Four cases were followed up with MRI after 4 to 8 weeks. Results MRI could determinate the severity and exact location of Achilles tendon rupture by demonstrating signal changes of Achilles tendon. In this series, complete rupture of Achilles tendon mostly occurred at the median part, with augmentation and high signal on T2WI. MRI demonstrated high signal on T2WI in partial rupture of Achilles tendon. The signal intensity in the four cases followed up by MRI was shown to decrease. Conclusion MRI is a valuable tool for clinical diagnosis and follow-up of Achilles tendon, because it provides enough information through signal changes at the tendon.

Objective To introduce the aim,design principles,function and characteristic of LIS. Methods Through functionalized design of module,this net management system is created by composed application,sampling,check,count,verify,auditing,issuance,quality control,query,consume control as an entirety. Results The accurate test data,the timeliness report and the query convenience were increased. Conclusion The LIS can provide exact and quick medical service for patients.

Objective To explore the mechanisms of recovery from aphasia by using speech-activated single photon emission computed tomography(SPECT)brain imaging.Methods The SPECT brain imaging of 7 aphasic patients caused by various brain disorders were performed while they were at rest and performing oral reading,respec- tively,with an one-day interval.A semi-quantitative analysis of regional cerebral blood flow(rCBF)was conducted using region of interesting(ROI).The change of rCBF before and after reading was calculated and compared to ana- lyze the role of both hemispheres in the recovery from aphasia.Results It was found that the activation pattern of brain region was associated with the speech performance of the patients.The activated brain regions were mainly loca- ted at the left hemisphere in 5 patients whose reading capacity was relatively better,and mainly at the right hemi- sphere in the other 2 patients who had poor performance in reading.Conclusion After a focal lesion of the left hemisphere,the recovery of speech function might be mainly attributed to the repair of the damaged left hemisphere language network.When the left-hemispheric centers were permanently impaired,the brain would recruit some right- hemisphere regions for speech processing,but this strategy was less effective than the repair of the original speech-rel- evant network.

Objective To investigate the incidience of anxiety or depression in the families of chronic diseases and to discuss the relationship between anxiety or depression and coping style. Methods Using SAS, SDS,SCSQ as main tools,questionnaire investigation was made in 232 families of chronic diseases. Results The incidence of anxiety was 25.9%, and that of depression was 43.1%, and the incidence of concurrence was 25.9%. The mental health level was asscociated with the sex, active response of families, the age, disease course of the patients, hospitalization costs, economic conditions. Conclusions The families of chronic diseases patients have different degrees of negative mood, which affects the patients. Therefore, enchancing the mental intervation of families of chronic diseases will do good to the recovery of diseases and improvement of life quality.

Objective To evaluate the performance of an improved skin prick test in the screening for allergens.Methods A total of 475 patients with chronic urticaria who aged from 3 to 81 years were enrolled in this study,and classified into the control group (n =235) and research group (n =240).Traditional and improved skin prick test were conducted in the control and research group respectively.The allergen detection rate was compared between the two test methods.Results The allergen detection rate was 65.4％ and 67.2％ respectively for the improved and traditional skin prick test,respectively (P ＞ 0.05).House dust mites were the most common sensitizing agent.Conclusion The improved skin prick test can offer reliable evidence for chnical diagnosis with a relatively convenient and safe procedure.

ObjectiveTo explore the long-term fluctuation of fasting plasma glucose (FPG) and its effect on prognosis in patients surviving for more than 1 year after renal transplantation.MethodsFour hundred and forty-six patients underwent kidney transplantation from January,1993 to December,2008.According to preoperative FPG levels,patients were divided into diabetic,impaired fasting glucose (IFG),and normal fasting glucose (NFG)groups. The changing trend of FPG level was observed and analyzed. For 428 non-diabetic patients before transplantation,the prevalence and different outcomes of post-transplantation diabetes( PTDM ) according to FPG after transplantation were analyzed.The characteristics of the patients with persistent PTDM ( P-PTDM ) and transient PTDM (T-PTDM) were compared.The incidence of complications and patient survival between the PTDM group and non-PTDM groups were also compared.ResultsFPG level was increased early and then decreased in patients after renal transplantation.Of the 428 patients,87 developed into PTDM ( 20.3％ ) including 15 T-PTDM patients ( 17.2％ of total PTDM ),who eventually recovered to NFG or IFG.Compared with P-PTDM group,the incidence of acute rejection episodes was higher for T-PTDM ( P =0.043 ).The incidence of infections,hypertension,and dyslipidemia within the first year,was higher in PTDM group compared with non-PTDM group but patient survival was not different within a mean follow-up of ( 5.65 ± 3.68 ) years.ConclusionPTDM will not be permanent and may recover to NFG or IFG in the course of the disease.Acute rejections are associated with the onset of T-PTDM.The overall patient survival is not affected by PTDM,although complications,such as infections,hypertention,and hyperlipidemia are more frequently encountered in PTDM patients.

Medical imaging teaching depends on support from multimedia database which is constructed with image information provided by PACS/HIS ( Picture archiving and communication system/Hospital information system ).This paper evaluated construction,administration and application of the multimedia database,and illustrated the importance of PACS/HIS in construction of the database,as well as of the database in medical imaging teaching.

Objective To clarify the role of B7-H1 in the immune privilege after corneal transplantation in homogeneity variant mice.Methods We established the experimental animal model of allograft mice by using C57BL/6 mouse as donor and Balb/c mouse as recipient.We allocaated the mice with long time survival (＞50 days) corneal graft into survival group,mice with rejection occurring in 50 days into rejection group,and normal C57BL/6 mice into control group.The transplanted corneal grafts were obtained for future reference at the 8th week after transplantation in survival group,and the time of rejection in rejection group.The expression of B7-H1 mRNA was detected by using immunohistochemistry and real time quantitative PCR (RT-PCR),and the relationship between B7-H1 and the immune privilege after corneal transplantation was analyzed. Results The B7 H1 mRNA was highly expressed in epithelium and endothelium of corneal grafts both in survival and control group,in comparison to an obviously lower expression in rejection group.The relative expression level of B7-H1 mRNA was 200.0 ± 11.5 in survival group,44.7 ± 10.8 in control group,and 6.9 ± 12.0 in rejection group,respectively. There were statistically significant differences among the three groups (F=241.164,P＜0.01 ).The was a significant correlation between the level of B7-H1 mRNA and occurrence rate of rejection in corneal graft (P＜0.01 ).Conclusion The results suggest that the immune privilege after corneal transplantation might be mediated by B7-H1,which plays an important role in maintaining the state of corneal immune privilege.

Background and purpose: Urokinase-type plasminogen activator receptor is related to invasion and metastasis of tumor. Inhibition of uPAR expression in tumor cells results in reducing its metastasis. This study was aimed to construct an expression vector with short hairpin RNA (shRNA) of uPAR, which could pave the way for RNAi-mediated tongue squamous cell carcinoma therapy. Methods: Genome sequences of uPAR gene were retrieved from Genhank and cDNA was designed to code expression of shRNA for uPAR gene. The cDNA was synthesized and inserted into the eukaryotic expression vector pWH1, and the recombinant pWH1-uPAR expression vector was identified by enzyme cutting method. Then, pWH1-uPAR expression vector was transfected into tongue squamous cell carcinoma Ts cells by Lipofectomine 2000. At last, the expression of uPAR in Ts cells transfected with pWH1-uPAR expression vector was observed by RT-PCR, immunocytochemistry staining and Western blot. MTT assay was performed to measure the proliferation of Ts cell. Results: The uPAR shRNA eukaryotic expression vector was successfully constructed. Compared with Ts cells and Ts cells transfected with plasmid pWH1, the Ts cells transfected with pWHI-uPAR expression vector showed a lower mRNA and protein expression of uPAR. The inhibition rate of proliferation was 32.9% of Ts cells by transfected with pWHl- uPAR. Conclusion: The constructed uPAR shR.NA expression vector could inhibit the expression of uPAR in tongue squamous cell carcinoma, which may be helpful for further research on the function of uPAR and provide effective methods for therapy of tongue squamous cell carcinoma.

Objective To evaluate the preoperative CT scanning in cardiac carcinoma.Methods 52 cases of cardiac carcinoma proved by operation and pathology were analysed.Results By CT scanning,the size of the tumor,it′s local extension and relation to the adjacent structures and lymph node metastases could be demonstrated.Conclusion CT scanning plays important role in the operability of the cardiac carcinoma and the planning of treatment.