A new medical electroradiography with high sensitivity.

Electrophotography is a very useful tool for x-ray diagnosis of the soft tissue and the bone due to the edge effect having wide latitude and high contrast. However, in usual electroradiography, larger exposure doses are necessary compared to silver haloid method owing to the low sensitivtity to x-rays. Very sensitive electroradiography is developed as K.I.P. method, using special photoconductive material on the upper insulating layer, and fluorescent screen on the electrode combined with double charging technique. Satisfactory results, are obtained with the K.I.P. Method in the x-ray dia gnosis of verious organs, such as the breast, skin, thyroid gland, bone and joint, chest, gastro-intestinal tract and others.