Computed
Tomography (CT) scanning, also called computerized axial tomography (CAT)
scanning, is a medical imaging procedure which uses x-rays to obtain
cross-sectional images of the body.
The introduction of computed tomography
(CT) has almost revolutionized diagnostic radiology.
As the usage of CT scan for diagnosing
pediatric ailments rises, the related worries and apprehensions arising due to
radiation risks also increase.
A
recent study conducted by the Dr. DB Larson and colleagues and published in the
Radiology Journal showed the increase in the number of CT scans done on
children in the Emergency Department to be fivefold in the 13-year span from
1995 to 2008.
Important questions pertaining to the
application of CT scan and radiation exposure in sensitive children were
brought to light by the study findings and were discussed at length in the
media.
The most troubling thing is the fact that
children are exposed to adult-size radiation dose as not all hospitals are well
equipped with facilities to reduce the radiation dose.
Children are small and more sensitive to
radiation. They have fast dividing cells and more time required for radiation
cancers to appear.
Extensive efforts are in progress not
only for ensuring the proper use of CT in children but also to expose them to
lowest possible radiation rates.
The rise of CT scan usage in youngsters
is because of the remarkable technological improvement provided by CT scan, in
diagnosing diseases with ease.
Undoubtedly CT scan is an incredible
technology. "Thirty years ago, we couldn't see inside the brain. Now, we
can do a child's body in half a second. We have technology that gives us exquisite
imaging and we don't need to sedate the child. We can have a definitive
answer.” said Marilyn Goske, MD, a pediatric radiologist at Cincinnati
Children's Hospital Medical Center.