Axial Loading during MR Imaging Can Influence Treatment Decision for Symptomatic Spinal Stenosis

Akio Hiwatashi, Barbro Danielson, Toshio Moritani, Robert S. Bakos, Thomas G. Rodenhause, Webster H. Pilcher, Per Lennart Westesson

Research output: Contribution to journalArticle

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Abstract

BACKGROUND AND PURPOSE: Previous studies have shown that axial loading can narrow the spinal canal. However, the clinical significance is unclear. The purpose of this study was to determine whether the narrowing of the spinal canal with axial loading during MR imaging could influence treatment decision for spinal stenosis. METHODS: Two hundred patients with clinical symptoms of spinal stenosis underwent routine MR imaging and then immediately underwent axially loaded MR imaging. We selected 20 of these patients because they had narrowing of the spinal canal shown on the axially loaded images. Three experienced neurosurgeons evaluated these 20 patients based on clinical information and routine MR images. The same neurosurgeons were then asked for second treatment decisions based on the same clinical information but with axially loaded MR images. RESULTS: Axial loading during MR imaging of the lumbar spine can influence neurosurgeons in their treatment decisions for symptomatic spinal stenosis. For this selected group of patients, all three neurosurgeons changed their treatment decision from conservative management to decompressive surgery for five patients when shown the axially loaded MR images. For two other patients, two neurosurgeons changed their treatment decisions, and for three additional patients, one neurosurgeon changed his treatment decision, all based on the axially loaded MR images. Treatment was not changed from surgical to medical management for any of the patients when shown the axially loaded images. CONCLUSION: In selected patients with spinal stenosis and apparent narrowing of the spinal canal shown by axially loaded MR imaging, the additional information gained from this technique can influence experienced neurosurgeons in their treatment decisions.

Original languageEnglish
Pages (from-to)170-174
Number of pages5
JournalAmerican Journal of Neuroradiology
Volume25
Issue number2
Publication statusPublished - Feb 1 2004

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Spinal Stenosis
Weight-Bearing
Spinal Canal
Therapeutics
Neurosurgeons
Spine

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology

Cite this

Hiwatashi, A., Danielson, B., Moritani, T., Bakos, R. S., Rodenhause, T. G., Pilcher, W. H., & Westesson, P. L. (2004). Axial Loading during MR Imaging Can Influence Treatment Decision for Symptomatic Spinal Stenosis. American Journal of Neuroradiology, 25(2), 170-174.

Axial Loading during MR Imaging Can Influence Treatment Decision for Symptomatic Spinal Stenosis. / Hiwatashi, Akio; Danielson, Barbro; Moritani, Toshio; Bakos, Robert S.; Rodenhause, Thomas G.; Pilcher, Webster H.; Westesson, Per Lennart.

In: American Journal of Neuroradiology, Vol. 25, No. 2, 01.02.2004, p. 170-174.

Research output: Contribution to journalArticle

Hiwatashi, A, Danielson, B, Moritani, T, Bakos, RS, Rodenhause, TG, Pilcher, WH & Westesson, PL 2004, 'Axial Loading during MR Imaging Can Influence Treatment Decision for Symptomatic Spinal Stenosis', American Journal of Neuroradiology, vol. 25, no. 2, pp. 170-174.
Hiwatashi A, Danielson B, Moritani T, Bakos RS, Rodenhause TG, Pilcher WH et al. Axial Loading during MR Imaging Can Influence Treatment Decision for Symptomatic Spinal Stenosis. American Journal of Neuroradiology. 2004 Feb 1;25(2):170-174.
Hiwatashi, Akio ; Danielson, Barbro ; Moritani, Toshio ; Bakos, Robert S. ; Rodenhause, Thomas G. ; Pilcher, Webster H. ; Westesson, Per Lennart. / Axial Loading during MR Imaging Can Influence Treatment Decision for Symptomatic Spinal Stenosis. In: American Journal of Neuroradiology. 2004 ; Vol. 25, No. 2. pp. 170-174.
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