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A fast, non-invasive imaging technique that uses X-rays to produce an image of the inside of the body.

X-rays are a type of radiation that produce an image on film when they pass through the body. Dense structures such as bones absorb and block the rays, appearing as white on the produced image.

Radiographs can be taken of any part of the body, and are often used for imaging the lungs (e.g. nodules, pneumonia), bones (e.g. bone cancer or fractures), or monitoring metal implants (e.g. prosthesis or plates).


Typically, no preparation is required; The patient is placed in a standing, seated or lying position depending on the part of the body being studied; The exam only lasts a few minutes.


The exam involves exposure to low levels of ionizing radiation, the risks of which are considered to be almost negligible. A lead apron may be placed on the patient to reduce exposure to organs considered more sensitive, such as the testicles or the thyroid gland. Radiographs are used in pregnant women and children with caution.