R/F system Purchase considerations

    R/F system is the large machine with amount of cost and when customers need to buy the systems, several considerations are suggested to observe in order to a worth deal.
 
    Specifications for R/F tables have been divided into three categories based on performance — high, mid, and low. The high performance category specifies a table tilt range of 90/90, while mid and low performance categories do not achieve full table tilt. High performance models are used in facilities that necessitate multiple tilting positions for various types of examinations, while mid and low performance may be used in facilities which may not need as many tilt options.

    R/F table systems use spot filming of images to produce x-ray film during diagnostic radiographic and fluoroscopic exams. Four main considerations in the evaluation of R/F systems include table tilt, image intensifiers, x-ray generators, and SFDs or photo spot cameras. Table tilt is the primary consideration in purchasing an R/F table system. Both longitudinal and lateral table travel can vary widely among manufacturers. Image intensifiers determine the field size of images to be viewed by physicians. Larger image intensifiers allow more anatomy to be viewed in one image. Most x-ray generators for R/F tables are high frequency or constant potential. High-frequency generators are smaller and therefore easier to install in space-constrained areas. Digital cameras are used to capture both fluoroscopic and fluorography (photo spot) images taken during fluoroscopic exams. Specifications for photo spot cameras must be as high as possible in order to meet the needs of both the fluoroscopic and photo spot images.

    Before purchasing an R/F table system, buyers should consider the types of procedures that will be performed and determine the table tilt, travel, image intensifier size, and image processing methods that will best suit those procedures. Other considerations are the heat dissipation rate and heat capacity of the x-ray tube anode. The focal-spot size of the anode should also be considered; a smaller focal spot provides better-quality images but does not dissipate heat as well as a larger one. Additional equipment — such as patient monitors, defibrillators, contrast injectors, software for specific imaging such as cardiac or vascular, and/or emergency resuscitation devices — may be necessary to accommodate the variety of procedures performed.

    All the above listed considerations are from the specification requirements, and more importance is a trusted company and after-sale service, which are the key factors for the users.
                                                                                                                                                                  Article:from Perlong Medical www.pl999.net