The fluorescent screen employed by Dr. Comandon is of the type known as "reinforced."
The fluorescent screen appears at first sight to be an easy way of recognizing abnormalities.
Consequently, the radiograph is projected upon the fluorescent screen and this image is then photographed by the camera.
The operator is examining the bones of the lady's hand, which she places between the X-ray tube and the fluorescent screen.
The diagnosis is made by the history, and by the use of the fluorescent screen, or X-ray photographs (Figs. 283, 284).
The use of the fluorescent screen, too, has been greatly extended.