Health physics
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While it has been known for more than a century that radiation presents risks to both the physician and the patient, skin injuries from fluoroscopy became increasingly rare after the 1930s, and radiation risk from fluoroscopy appeared to be adequately controlled. However, beginning in approximately 1975, new technologies and materials for interventional devices were developed. ⋯ Four central issues were identified: equipment, quality management, operator training, and occupational radiation protection. Recognition that these were areas for improvement provoked changes in technology and practice that continue today.