RESUMEN
Objective To explore the expression and relationship with the clinical pathological features of CD34,CD117,smooth muscle actin(SMA),S -100 protein in gastrointestinal stromal tumor.Methods 60 cases of resection of gastrointestinal stromal tumor specimens were collected,all cases were confirmed by postoperative patholo-gy,explored the expression of CD34,CD117,SMA,S -100 protein expression in gastrointestinal stromal tumor with immunohistochemical method,analyzed the relationship with the clinical pathological features of CD34,CD117,SMA, S -100 protein.Results CD34 positive signal located in the cytoplasm,CD117 positive signal mainly located in cyto-plasm,a few located in the cell membrane,nuclear yellow particles diffuse distribution in cells,SMA and S -100 pro-tein located in the cytoplasm of focal or scattered point positive expression of CD34,CD117,SMA,S -100 protein pos-itive expression rate in gastrointestinal stromal tumor tissue were 88.33% (53 /60),95.00% (57 /60),43.33%(26 /60)and 6.67% (4 /60);CD34 positive expression rate was related to area (χ2 =9.093,P <0.05),S -100 protein positive expression rate related to the histological type (χ2 =10.447,P <0.05).Conclusion CD34,CD117 in gastrointestinal stromal tumor tissue in the positive expression rate is very high,detection jointed with CD34,CD117 can improve the gastrointestinal stromal tumor diagnosis accuracy.
RESUMEN
This article is aimed to present a design of a testing device for knee joint kinematics parameters of patients with strokes. We used Auto CAD to design the knee joint sensor device, and applied multifunction data acquisition card to collect sensor data. Then we transferred the data to the computer to quantitatively detect and analyze the joint angle, angular velocity and other parameters. The software system used Visual C+ + MFC frame and shared database Access, and used ADO technology to realize the collection between the software system and patient information system. After a preliminary test of 20 healthy subjects, the result showed that intraclass correlation coefficient (ICC) was more than 0.8, indicating a good reliability of the instrument.