Final answer:
Radiologists used dark rooms to view fluoroscopic images due to the low brightness of early images and lack of control over radiation exposure. Modern advancements have improved image quality and reduced radiation risks.
Step-by-step explanation:
Until approximately 1960, radiologists viewed fluoroscopic images in a dark room because of the release of radiation and poor quality images. Early fluoroscopic equipment produced images with low brightness, requiring adaptation of the radiologist's eyes to darkness for optimal image viewing. Moreover, the technology of that time posed a higher risk of radiation exposure, which was less understood and less controlled than it is today.
Refinements in X-ray techniques over the years have significantly reduced the radiation dose to both patients and operators. Modern radiology now uses advanced imaging technologies and computer systems to provide clearer, three-dimensional images, thus drastically improving diagnostic capabilities while enhancing patient and staff safety through better shielding and reduced exposure times.