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我国各医院现有的四肢投照方法绝大多数使用传统方法。即将胶片置于肢体下曝光。特别是在一张胶片上需要同时投照二个位置时,还需要用铅板或铅橡皮遮盖一侧,分别曝光。胶片上的日期、片号也是用胶布贴在胶片的一角。这种方法在我国已延用几十年,存在许多问题: 1.由于使用的铅板规格不统一,位置不因定,易移动,因而影响照片的质量。 2.技术人员的素质不同,操作不规范,也会影响照片的质量。 3.用于贴铅字号和片号的胶片需要每天更换,费时费力又浪费胶布,增加了技术人员的工作量。
The vast majority of the existing methods of extremity projection in hospitals in our country use traditional methods. The film is placed under the limb exposure. Especially in a film on the need to vote two positions at the same time, also need to cover with lead or lead rubber side, respectively, exposure. The date on the film, the film number is also a piece of tape affixed to the corner of the film. This method has been extended in our country for decades, there are many problems: 1 due to the use of the lead plate specifications are not uniform, the location is not set, easy to move, thus affecting the quality of photos. 2. Technicians of different quality, operation is not standardized, will also affect the quality of photos. 3. Used to paste the font size and film number need daily replacement, time-consuming and waste tape, increasing the workload of technical staff.