What is an
x-ray?
The x-ray has been called one of the most significant advances in
all of medical history. It is used in many different ways in medical
diagnosis. An x-ray image is produced when a small amount of radiation
passes through the body and strikes a receptor placed on the other
side of the body.
The ability of x-rays to penetrate the different types of tissues
in the body varies according to the tissue's composition and mass.
For example, bone, which is quite dense, does not allow much radiation
to get through, and therefore appears white on an x-ray image. Lungs,
which are filled with air and are quite low in density, allow nearly
all x-rays through, resulting in a dark appearance on the image.
Benefits of x-rays
X-rays give doctors valuable information about the inside of the
body. They are invaluable in accurately diagnosing an endless variety
of conditions. There is general agreement within the medical community
that the small theoretical risks associated with the use of radiation
are greatly outweighed by the information x-rays provide relating
to a patient's condition. Improved image quality and advances in
electronic technology have helped create better, faster images using
lower doses of radiation.
Any Special Precautions?
X-rays are potentially harmful to unborn babies. If you are pregnant,
or suspect you may be pregnant, inform the technologist prior to
your exam. In this case special precautions will be taken if the
x-ray exam is necessary.
|
