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Before injecting contrast what changes to the fluoroscopy field of view should be made?
Open the top and bottom, increasing the field of view. This will help better visualise the spread of the injected contrast.
A 22-gauge Tuohy needle has targeted and passed through the C7-T1 interlaminar space. Images are taken in an oblique plane, both pre and post the injection of iodinated contrast which spreads along with the dorsal epidural fat in the central canal away from the needle tip. The posterior image shows patchy spread of contrast, again in keeping with epidural spread.