Evaluation criteria for disaster recovery procurement of disaster recovery system

As the development trend of mainstream X-ray photography, DR has become one of the necessary "weapons" in hospital radiology. There are as many as forty or fifty domestic and foreign manufacturers producing DR, and the products are mixed, with uneven quality and different levels. So how to learn from the DR products of many manufacturers and find the products that really suit the actual situation of our hospital? I think it can be demonstrated and investigated from the following aspects.

1, overall evaluation standard

The real mission of DR is to change the workflow of plain film and improve the work efficiency on the premise of ensuring the image quality. Users' evaluation of equipment should also be based on this, taking into account practical factors such as maintainability, failure rate, price, overall cost and post-maintenance cost. Therefore, the purchase of DR needs a comprehensive overall evaluation, and it cannot be confused by some imported parts or a single technical index or a term promoted by the manufacturer. It is necessary to comprehensively consider the company's production and R&D strength, image quality, work efficiency and after-sales service.

1) R&D strength of the company

Even if a product uses the same hardware, the equipment produced by different manufacturers is very different. Due to the particularity of medical equipment, it is determined that high-quality medical equipment is the guarantee of the hospital, which not only solves the clinical application of the hospital, but also creates economic benefits for the hospital. The importance of its diagnostic equipment is self-evident. The strength of production and research and development determines the stability of products, and the stability of products is very important for hospitals. Therefore, when purchasing equipment, it is necessary to know whether it is a professional manufacturer of DR equipment, its R&D history, R&D team, workshop standardization, time to market, degree of autonomy of the whole machine, and whether it has mastered the core technology rather than assembling it at will. Products must be tested by the market and constantly improved, but for users, if they spend hundreds of thousands or even millions to buy an immature product from an unprofessional company, is it for purchase? Or buy it for maintenance? There is no doubt about the risk.

2) Image quality

High-quality and stable imaging quality is one of the original intentions of purchasing DR equipment, and it is also the material basis for improving the level of diagnosis and treatment. It involves the signal-to-noise ratio, resolution, clarity, contrast and detail display of radiation images, which is mainly determined by detector technology, X-ray quality of X-ray tube, post-processing function and compatibility of hardware and computer operating software.

3) Work efficiency

It is one of the most important functions of DR to reduce labor intensity, change the workflow of general caving and improve efficiency, which is also an important reference for purchasing such equipment. It involves dynamic range, imaging speed, data transmission/processing speed and many other aspects. Because many unnecessary processes are omitted, the normal output rate should be 2-3 times that of the traditional mesh/glue system.

4) After-sales service

Require timely and complete selection of professional manufacturers with offices and after-sales maintenance branches in the city where the provincial capital is located. Before buying, we must take into account the differences in after-sales service quality caused by their differences in technology and brand, and try our best to choose mainstream mature products from big manufacturers recognized at home and abroad. Amorphous selenium flat DR is a factor that must be considered before buying because of its immature technology and high maintenance frequency.

2. Actual demand

In order to meet the actual needs of our hospital, we should comprehensively consider the overall performance, image quality, use cost and after-sales service of the equipment. The main factors are: hospital scale, local influence, characteristic departments, film production, budget and so on. If the hospital has high technical requirements, a large number of outpatient films and sufficient funds, it is recommended to choose amorphous silicon flat-panel DR; If the cost performance is very high, CCD DR is highly recommended. Among all DR types, its price is the lowest. If you don't want to spend too much money and want to buy a DR, CCD DR must be the first choice, because the charging standards for various DR types are the same.