Summary
Sixty-five patients with recurrent radicular complaints after operation for lumbar disc herniation underwent CT examination before and after intravenous contrast application (volume: 1.5–2.0 ml/kg body weight; flow rate: 0.35 ml/s). Postsurgical hypertrophic scar tissue showed definite contrast enhancement, whereas disc herniation remained unenhanced. Intravenous contrast application is recommended in patients previously operated upon for disc herniation.
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Weiss, T., Treisch, J., Kazner, E. et al. CT of the postoperative lumbar spine: the value of intravenous contrast. Neuroradiology 28, 241–245 (1986). https://doi.org/10.1007/BF00548198
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DOI: https://doi.org/10.1007/BF00548198