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CT-diskography in patients with sciatica. Comparison with plain CT and MR imaging

R Dullerud1, J G Johansen

  • 1Department of Radiology, Ullevaal University Hospital, Oslo, Norway.

Acta Radiologica (Stockholm, Sweden : 1987)
|September 1, 1995
PubMed
Summary

CT-diskography (CT-D) compared CT and MR imaging for evaluating annular degeneration and tears. Pain intensity and type correlated with tear depth, suggesting a link between disc pathology and pain perception.

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Area of Science:

  • Radiology
  • Orthopedics
  • Pain Medicine

Background:

  • Intervertebral disc degeneration is a common cause of low back pain.
  • Accurate imaging is crucial for understanding disc pathology and its relation to pain.

Purpose of the Study:

  • To compare CT-diskography (CT-D) with plain CT and MR imaging in evaluating annular degeneration and tears.
  • To assess the relationship between imaging findings and induced pain during CT-D.

Main Methods:

  • 111 intervertebral discs in 101 patients (aged 18-68) were examined using CT-D, plain CT, and MR imaging.
  • Pain response to contrast injection during CT-D was recorded.
  • Correlation analysis was performed between imaging findings and pain characteristics.

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Main Results:

  • Annular degeneration and tear depth were associated with each other and with loss of disc height.
  • Tear depth, but not degeneration, correlated with MR signal loss.
  • Pain type and intensity correlated with tear depth, but not with degeneration or hernia characteristics.

Conclusions:

  • Annular degeneration and tears are closely related to the type and intensity of pain experienced.
  • CT-D provides valuable information regarding disc pathology and pain provocation.