The beginning of
The beginning of fluoroscopy can be traced back to November 8, 1895, Wilhelm Rontgen when he warned that a screen platinocianuro barium fluorescia as a result of exposure to what would later baptize as X-ray A few months after this discovery was first built the fluoroscope. Thomas Edison quickly discovered that calcium tungstate screens produced brighter images and is credited with designing and manufacturing the first commercially available fluoroscope. In the beginning, there were many predictions that moving images obtained by fluoroscopy to completely replace the static X-ray radiography, but the superior quality of these diagnoses prevented compliance with such predictions.
Ignorance of the harmful effects of X-rays did not have procedures for radiation protection as those available at present. Scientists and doctors often put their hands directly on the X-ray beam, thereby causing radiation burns. Also appeared trivial uses for this technology, including those used in shoe stores in the 1930s to 1950 to try shoes .
Owing to the light produced by fluorescent screens, early Radiologists needed to make explorations in dark rooms, previously accustomed to raise his eyes sensitivity to light. When placed behind the screen, the radiologist was a significant dose of radiation. Wilhelm Trendelenburg in 1916 the development of alignment with the red glasses to resolve the problem of eye adaptation to darkness, studied previously by Antoine Beclere. The red light resulting from the filtration of the glasses properly sensitized eye of the radiologist before the discovery while allowing you to receive enough light to function normally.
The development of image intensifier and X-ray television camera in the 1950s revolutionized fluoroscopy. The red adaptation goggles became obsolete because the image intensifiers allowed the light produced by the fluorescent display is magnified, so that could be seen even in a lighted room. The addition of the camera allowed visualization of the image on a monitor, so the radiologist can see the images in a separate room, away from the risk of radiation exposure.
Subsequent improvements to match the screen, the image intensifier and flat panel detectors have allowed a better picture quality while minimizing radiation dose to the patient. The modern fluoroscope screens using cesium iodide and produce images with little noise, ensuring that a minimum dose of radiation while they are images of acceptable quality.
- The Trentonian
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