论文部分内容阅读
医疗和教学工作中,都离不开观察X光片,一张X光片上的局部病理改变,有时需要仔细观察方能找到,尤其是作为教学或总结病例,进行治疗前、后的对比,就要把已有的X片一张一张地进行比较.这样既不方便,又浪费时间.我们把它制成一张幻灯片或像片,使之能看到片子的全貌,也能突出局部的主要病理改变,一目了然.一、X光片的拍照:一般在看片灯上进行,一般应用全色片,微粒显影液(D-76或DK-20),冲洗底片,因为X光片上拍摄的病变很微细,若反差太大必然影响照片质量.拍照时应在暗的环境中进行,以防止外来光线从正面投
Medical and teaching work, are inseparable from the observation of X-ray films, an X-ray film on the local pathological changes, and sometimes need careful observation before they can find, especially as a teaching or summary of cases, before and after treatment compared to It is inconvenient and time-consuming to compare the existing X-sheets one by one, and we make it into a slide or a photo so that we can see the full picture of the film, The main pathological changes at a glance .One, X-ray filming: generally in the film light on the general application of full-color film, particle developer (D-76 or DK-20), the negative film, because the X-ray filming Of the lesions are very fine, if the contrast is too large will inevitably affect the quality of the photo. Photographed should be carried out in a dark environment to prevent external light from the front cast