[Development of intraoperative C-arm imaging in trauma surgery].

Since the earliest beginnings of using X-rays, two forms of examination techniques have been known: X-ray imaging and projection onto films. The new technology very rapidly became widespread. Just a few months after the discovery of the so-called X-rays, the first fluoroscopes (instruments for visualizing internal structures) were constructed and constantly improved upon. If the operation took place in bright light, a cryptoscope was needed for examination. Since 1984 fluoroscopic examinations or interventions performed under X-ray control are only permitted when systems are used that are equipped with an image intensifier video chain or a digital image receiver with TV monitor.At about the beginning of the new century the first digital imaging systems with solid-state detectors were put into service. Flat panel detectors offer high-quality imaging with good spatial resolution and contrast recognition. At the present time, storable intraoperative three-dimensional diagnostic imaging is available.