胸椎撮影の一考察

抄録

In radiography of the dorsal spine (A-P), the image of thoracic vartebrae is blurred because the contrast between it and that of the surrounding organs is excessively intense. In order to get a clear image that is significant in diagnosis, the authors used a slit filter made of copper and aluminum, which not only eliminated the scattering X-rays and decreased the useless surface dose but also reduced the difference in contrast between the two images. This method was applied to radiography of hyphotic thoracic vertebrae with good results.