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Imaging Techniques To Diagnose Headaches |
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The procedure is
mostly costlier than a CT scan but not necessarily superior to it,
except in some cases. However, it is extremely sensitive.
The MRI machine is quite noisy although the procedure itself is
painless. It is absolutely necessary that all metal belongings on one's
person should be removed because a very strong magnetic field is created
inside the machine, which could pull those metal belongings towards
itself. Hence, it is also not advisable for people who may be having
pacemakers, surgical clips or bone pins implanted inside their bodies.
Positron
Emission Tomography Scan (PET scan)
A PET scan
stands for Positron Emission Tomography Scan. It has been found to be
useful because it displays a 3D image of the brain and is used to
measure brain function.
Here the doctor can see the effects that
certain drugs have on the brain. A fluorine-based radio isotope is used
during a PET scan. A PET scan is a relatively new technique and studies
are still underway to find out its efficacy in diagnosing the cause of
headaches.
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