Head Injury - Description






Head injuries can take many forms. These include skull fractures (broken bones in the skull), blood clots between the brain and the skull, and damage to the brain itself. Brain damage can occur even if the skull itself is undamaged. The brain may move around inside the skull with enough force to cause bruising and bleeding.

Most people have had some type of head injury at least once in their lives, but these events are usually not serious enough to require hospital care. However, about two million Americans experience serious head injuries every year. Up to 750,000 of these individuals require hospital treatment. Brain injuries are most likely to occur in males between the ages of fifteen and twenty-four. The most common causes of these injuries are car and motorcycle accidents. About 70 percent of all accidental deaths are due to head injuries, as are most disabilities resulting from accidents.

Computed tomography (CT) scan:
A diagnostic technique that uses X rays focused on a portion of the body from different directions to obtain a three-dimensional picture of that part of the body.
Computerized axial tomography (CAT) scan:
Another name for a computed tomography (CT) scan.
Electroencephalogram (EEG):
A record of the electrical impulses produced by the brain's activity as a way of measuring how the brain is working.
Magnetic resonance imaging (MRI):
A diagnostic technique for studying the structure of organs and tissues within the body without using radiation of any kind.
Positron emission tomography (PET):
A diagnostic technique that uses radioactive materials to study the structure and function of organs and tissues within the body.

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