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X-rays are a well-known for use in examining fractures, but can
also be used to analyze numerous other medical conditions.
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With
MRI (Magnetic Resonance Imaging), a powerful magnet
linked to a computer is used to make detailed pictures of areas in
the body. MRI scans have the added advantage of being
three-dimensional and able to project accurate images of soft
tissue structures. MRI can detect a bulging, degenerated or
herniated intervertebral discs - frequent causes of spinal
stenosis. Along with these causes of nerve compression the actual
compressed and inflamed nerves are also visible on MRI. MRI is
frequently employed to help plan surgeries on the spine and is
performed after spinal surgery to show post-operative improvement
or changes. |
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A CAT / CT (computerized
axial tomography) scan is diagnostic image created after a
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Copyright 2006 A.D.A.M., Inc. |
computer reads a series of
x-rays. These scans give the physician a detailed image of the
spine showing the shape and size of the spinal canal, its
contents, and the structures around it. |
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A myelogram is an x-ray of the spinal canal following the
injection of a liquid dye into the surrounding spinal fluid
spaces. A myelogram can show pressure on the spinal cord or nerves
due to herniated discs, bone spurs or tumors. |
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A
bone scan is a test in which an injection of a radioactive
substance is used to show where bone is breaking down or being
formed. |
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Electromyogram and Nerve Conduction
Studies (EMG/NCS):
These tests measure the electrical impulse along nerve roots,
peripheral nerves, and muscle tissue. The test can indicate
whether there is ongoing nerve damage, if the nerves are in a
state of healing from a past injury, or whether there is another
site of nerve compression. |
Spinal
Stenosis
