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Frequent questions | |
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He asks the doctor | |
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Beginning | |
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RADIOGRAPHY OF THORAX | |
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 DENOMINATION TECHNICAL DEFINITION PREPARATION PROBLEMS UTILITY X-RAYS RESULTS TO SEE TO CONSULT |
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The use of the x-rays to form a two-dimensional image of the thorax with his anatomical structures (lungs, heart, big arteries, bony structure, and the diaphragm) this are what is called a radiography of the thorax. For it one is necessary a form of electromagnetic radiation (like a light), they have a big energy and for it they can penetrate across the human body and produce an image in a photo badge. In this step the radiations are modified and by it, on having passed for dense structures for the bone in the badge, a white tone will appear, if it crosses structures with air a black tone appears. Between both thickness different tones can appear of gray, depending on the thickness of the structure crossed by the bundles of x-rays. Thus there will happen a two-dimensional image of a structure of the body, with different tones of the black to the white person separating structures and delimiting textiles. On having had a normal model, there can be compared the changes that appear to extract information for the diagnosis of different illnesses. It will be realized in a place appropriate and conditioned to have a producing device of x-rays, sufficiently isolated by means of structures that do not allow to penetrate the x-rays out of them, as there can be thick concrete walls, with lead. The Rx device will be placed in the back of the patient and the photo badge to obtain the image will be placed partly previously of the patient. In general position calls him this one a Radiography anteroposterior of thorax. A radiology technician will be the manager of realizing the exploration, and depending on the type of badge, structure, weight of the patient, and other variables it will fit the time of exhibition and the intensity of the produced Rx. The technician will be covered by an apron of lead and a book-keeper of exhibition for his own safety. It be usually necessary not to move while a radiography is realized to prevent, as in a photo, the radiography from going out blurred and from getting lost definition. In necessary case his doctor can request more than one Rx ó in different positions.
The achievement of a simple radiography does not cause any pain. The exhibition to the Rx is low, the current devices use very low radiation to produce images. In any case the pregnant women and the children are more sensitive to this exhibition and they must have more care and avoid unnecessary explorations.
One asks for a thorax radiography in case of thoracic or pulmonary symptoms; between the most frequent they are:
Since we can see in the image of a Rx of normal thorax the following structures can be appreciated:
If there appear alterations of the pulmonary beaches:
If alterations appear in the cardiac arches or size they can be appreciated:
Alterations of the thoracic wall (ribs and spine):
Alterations in the diaphragm:
Problems that can be appreciated in the mediastino:
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