Objective To research a more accurate retrieval algorithm of ECR, which will assist its development and utilization in the field of medicine effectively. Methods Based on

Objective To evaluate the efficacy of surgical treatment of Ebstein's anomaly with modified Carpentier's repair technique. Methods ⑴Enlarging the anterior leaflet with a pericardium patch; ⑵The edge of posterior leaflet was sewed to the edge of anterior leaflet or septal leaflet in favor of enlarging the area of leaflet; ⑶Annulus was reinforced with the terylene ring covered with pericardium; ⑷Adjustable Devega's procedure. Results 31 patients with Ebstein's anomaly underwent modified Carpentier's repair operation from Jan 1992 to May 2003 in our institution. There was one patient died after operation because of a fatal cardiac dysfunction, and no late deaths. During the followed-up period of 6～94 months, all surviving patients had a marked improvement of heart function, and 6 cases were in class I, 21 in class II and 3 in class III. There were no postoperative rhythm disturbances. Conclusion The modified Carpentier's repair technique is feasible and possesses a good outcome.

Data exchanged through public telephone networks and the singlechip systems in devices of terminals and center, a kind of monitoring data wire transmission technology for oxygen supply in hospital is introduced in this paper. With high quality of signal transmission and infrequent distortions of signals, the technology can be applied to realtime supervising of oxygen supply system.

Objective To realize the integration of PACS and HIS. Methods Powerbuilder was used in designing the electronic application system. Synchronization of PACS and HIS were accomplished by Oracle stored procedures. Results The integration of PACS and HIS were implemented successfully in Xijing Hospital and satisfied results were achieved. Conclusion The successfully integration of diverse systems should be based on the circumstance of hospital,led by information department,and discussed and demonstrated by relative departments. At the same time,the principal of high availability and low dependence among diverse systems should be followed. The alternate periods of old and new work flows should be decreased on the basis of practical software and reasonable procedure.

MITK is an integrated software package for medical image process and analysis with C++ class libraries.A sobel edge detection on CT image of belly is conducted by using MITK under the VC++6.0 environment,which builds hope that the medical image process software could be developed with MITK platform.

In this paper,the low rate of commercial of biomedical engineering scientific achievements transfer in military universities was discussed in detail.The main problems were analyzed.The commercial strategies of biomedical engineering scientific achievements transfer inmilitary universities were propound.

Objective To develop a portable acoustic output measurement system in order to satisfy the requirements of military itinerant inspection. Methods A hydrophone was used as energy converting equipment to collect wave of acoustic pressure in the field of ultrasound. Through some calculations using approximated formulas, a serious of acoustic output parameters were achieved. Results Main acoustic output parameters could be measured with permitted error. Conclusion This method is feasible, which can make up for the defects of current measurement.

Prostatic disorders are common and frequently occur in male,which have caught wide attention in society.At present,the medication,surgery treatment and physical therapy are the main treatments for prostatic disorders.In this article,a new-type apparatus for prostate therapy is introduced.With radio frequency current on affected part,the abnormal tissues' temperature is raised so that the accelerated blood circulation can kill the pathogenic bacteria for cure.At the same time,there is a shaking device and a magnetostatic field in its probe,which can hasten the excretion of putrescence and desquamative tissues in the pathological parts with other normal tissues unaffected.It is worth popularizing for its safety and effectiveness.

Objective: In order to understand temporal and spatial distributions of alternating electromagnetic field (AEMF) of a coil thoroughly, the 3-D finite-element models of this kind of Biomagnetic Fields are established and analyzed for the research on bioeffect of magnetic field on microcirculation. Methods: Designing CAD models, setting boundary conditions, meshing models and obtaining numerical solutions were completed all within Comsol Multiphysics in terms of the theory of electromagnetic field. Results: Axial and radial plot of spatial attenuation rate of the AEMF, which were accordance with measured data, were simulated while the temporal and spatial distributions of AEMF were acquired. Conclusion: Models of 3-D finite-element of this kind of biomagnetic fields which appeared to exactly simulate the real magnetic field were first established systematically, and solved the placing problem of magnetic fields for the research on bioeffect of magnetic field on microcirculation and provided platforms for the simulation of hemodynamic of blood flow in the magnetic field.

Objective To develop a ribbed,oxygen-enriched and inflatable tent to fulfill the requirements for mobile enriched oxygen supply under plateau conditions.Methods The tent was developed with ribbed skeleton,PVC material,nested structure,buffer door,channel for fresh air dispersion,exhaust recovery pipeline and etc,and the self-developed plateau oxygen enrichers were involved in to establish a mobile oxygen-enriched room.The enrichers were divided into four grades of 20,50,70 and 100 m3/h,which were used to execute 8-h oxygen-enriched fresh air dispersion in the tent.The change curves of the fractions for oxygen and carbon dioxide were compared and analyzed at 5 disperse points in the tent.Results Optimal effect was acquired with 20 m3/h oxygen enricher,the oxygen concentration reached 27％ in the tent after 8-h dispersion,while the carbon dioxide fraction was 1 800 ppm (1 ppm=l×l0-6) and it took 3-h to raise oxygen concentration to 25％.Conclusion The tent combined with 20 m3/h oxygen enricher decreases the equivalent altitude from 5 000 m to less than 3 000 m,and is hopeful to be spreaded in the plateau troops after improvement.