Operating instructions

Spine
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• The CT scan following myelography must be per-
formed within 4-6 hours of the injection, otherwise,
the contrast density in the spinal canal will be too
high to obtain artifact-free images. Also, if possible,
it is a good idea to roll the patient once, or scan in a
prone position. This will prevent the contrast from
pooling posterior to the spinal cord. If a prone scan is
performed, breathing instructions are recom-
mended to avoid motion artifact in axial source and
MPR images.
• With CAREDose 4D the mA values are adapted for
each osteo range, according to the patient diameter.
Therefore special obese protocols for the osteo and
spine evaluation are not longer necessary.