Computed tomography application to lumbar epidurography

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      The application of current-generation computed tomography scanning to lumbar epidurography has resulted in a better appreciation of epidural anatomy and improved ease of interpretation of non-ionic contrast material within the epidural space. The development of extended window width has greatly improved imaging of the more variable levels of attenuation encountered in contrast material within the epidural space. The procedure of distribution of contrast material by catheter technique via the sacral canal approach is described. The experience obtained on examination of 24 patients is discussed, along with the possible adjunctive and primary roles of this type of imaging in evaluation of the lumbar spine.


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