In early November 1895, during an unassuming experiment carried out by the German physicist Wilhelm Conrad Roentgen, with a cathode ray tube covered with thick cardboard, he noticed that a fluorescent screen that was discarded in his office lit up brightly. one meter away as soon as the tube was connected.
Intrigued, Roentgen intuited that the tube was capable of emitting invisible rays, and after a new series of experiments, he placed different materials between the tube and the screen, discovering that the rays could penetrate wood, glass and rubber. The physicist then had the idea of placing his own hand in the path of the invisible rays, and he could check the contour of his bones.
The physicist then asked his wife Anna Bertha Roentgen to place her left hand on the chassis of the screen, along with a photographic film, and for 15 minutes she stood still with the radiation coming from the tube falling on her hand.
When the film was developed, his wife let out a scream of terror when she saw his bones exposed – for Anna Berth, the rays were a precursor to death. This is considered the first x-ray in history, and was carried out on December 22, 1895.
Just 6 days later, on December 28, the physicist delivered a report to the Physico-Medical Society of Würzburg, Germany, describing all his discoveries. The repercussion was practically immediate within the academic world, with doctors around the world eager to be able to see inside the human body without having to dissect the patient.
Physicists, chemists, scientists and researchers tried to replicate Roentgen’s experiments, hoping to find possible new applications, in addition to explaining and understanding the phenomenon itself. Shrouded in many mysteries, including for its discoverer, who did not know all of its properties, Roentgen decided to name his discovery “X-Rays”.
Today we know that X-rays belong to the field of electromagnetism, along with visible light, ultraviolet, infrared and gamma radiation, in addition to radio waves. Wavelength is the main differentiating factor between types of radiation.
The discovery remains as relevant today as it was 130 years ago, in addition to having enabled advancements in other areas of diagnostic examinations. From Roentgen’s X-rays, the techniques of angiography, coronary angiography and computed tomography were developed, all of which use X-rays in different ways. Radiotherapy, used in the treatment of neoplasms, also uses this type of radiation.
Radiography, on the other hand, has become a simple, quick, painless and non-invasive examination. The digital era has brought even more practicality, as current equipment allows for better visualization of the internal region of the human body, without the need to develop x-ray films.
In Digital Radiography, image capture is made using circuit boards that allow the generation of a digital image of human tissues. In addition to being a safer process, and eliminating the need for radiological films, digital X-ray converts the radiation that passed through the area examined into electrical impulses, generating an image in pixels in a few seconds, eliminating the need to store traditional plates X-ray, freeing up physical space and reducing the time required for processing.
This way, the files can be viewed on computer screens, with a higher resolution. There is also the option of printing the exam without loss of resolution, or sharing the image with patients or other specialists, generating even more agility in patient care.
Furthermore, the digital X-ray device is much smaller than a traditional X-ray and can be portable. Free from input costs and problems with disposing of toxic elements, Digital X-ray combines a revolutionary discovery dating back almost 130 years with the most modern digital era, to create a unique diagnostic solution.
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