Since that time infrared photography has been tried out on a multitude of projects, including diagnostic medical imaging. In fact, a recent of medical research journals by the author has indicated a general decline since the mid eighties in published clinical articles on infrared photography. Other non-photographic methodologies have replaced the general use of infrared photography as a diagnostic tool in hospital photography departments.
Infrared photography is alive and well, however.
In fact, it has undergone a resurgence in popularity among fine arts photographers during the same period it underwent a decline in use by the medical community. A schematic of the Electromagnetic Spectrum shows the range of electromagnetic radiation, from ultraviolet at the far left to radio waves at the far fight. At any given time there are varying amounts of every wavelength. Unfortunately, hominids are used to seeing the world in color. When that world is reduced to gray tones, many of the subtleties of hue disappear.