放射性同位素所产生的核射线,能使照相乳胶感光,因而可利用感光乳胶片上感光银粒的所在部位和黑度判断放射性示踪剂的位置和数量,这种利用感光乳胶记录、检查和测量放射性的方法,就叫放射自显影术。我们在平乐接骨丹对加速骨折愈合的实验研究中,采用了~3H——TdR放射性自显影术,收到了良好的效果,给实验研究提供了可靠的数据,此项技术较先进,很有应用价值,现将具体操作步驟介绍如下。 Radioactive isotopes produce nuclear rays that allow the photographic emulsion to be sensed so that the location and amount of the radioactive tracer can be determined by the location of the light-sensitive silver particles on the photographic emulsion film and the degree of blackness. This uses a photographic emulsion to record, examine and measure radioactivity The method is called autoradiography. In our experimental study on accelerating fracture healing, we found that ~ 3H - TdR autoradiography was used in our study, which has received good results and provided reliable data for experimental studies. This technique is more advanced and promising Application value, now the specific steps are described below.