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Abstract

Interobserver Discrepancies in Distance Measurements from Lumbar Spine CT Scans

G. Jerome Beers, Anthony P. Carter, Bruce E. Leiter, Shripad P. Tilak and Rangit R. Shah
American Journal of Neuroradiology November 1984, 5 (6) 787-790;
G. Jerome Beers
1Department of Radiology, Boston University Medical Center, and Boston City Hospital, 818 Harrison Ave., Boston, MA 02118. Address reprint requests to G. J. Beers
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Anthony P. Carter
1Department of Radiology, Boston University Medical Center, and Boston City Hospital, 818 Harrison Ave., Boston, MA 02118. Address reprint requests to G. J. Beers
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Bruce E. Leiter
1Department of Radiology, Boston University Medical Center, and Boston City Hospital, 818 Harrison Ave., Boston, MA 02118. Address reprint requests to G. J. Beers
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Shripad P. Tilak
1Department of Radiology, Boston University Medical Center, and Boston City Hospital, 818 Harrison Ave., Boston, MA 02118. Address reprint requests to G. J. Beers
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Rangit R. Shah
1Department of Radiology, Boston University Medical Center, and Boston City Hospital, 818 Harrison Ave., Boston, MA 02118. Address reprint requests to G. J. Beers
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Abstract

Lumbar spine computed tomographic (CT) scans of 10 patients were examined independently at two levels by five experienced radiologists. At each level the minimum midline sagittal diameter was measured, and at each intervertebral space the left foramen was measured for its minimum diameter. Statistically significant differences were found between the measurements of different observers, differences that in a number of cases could have led to disagreement over whether or not stenosis was present. There were reasonably strong correlations between different observers' readings of midline sagittal diameters but generally not of foraminal diameters. Reasons for discrepancies between observers in spine CT measurements are reviewed briefly.

  • © American Roentgen Ray Society
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American Journal of Neuroradiology
Vol. 5, Issue 6
1 Nov 1984
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Interobserver Discrepancies in Distance Measurements from Lumbar Spine CT Scans
G. Jerome Beers, Anthony P. Carter, Bruce E. Leiter, Shripad P. Tilak, Rangit R. Shah
American Journal of Neuroradiology Nov 1984, 5 (6) 787-790;

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Interobserver Discrepancies in Distance Measurements from Lumbar Spine CT Scans
G. Jerome Beers, Anthony P. Carter, Bruce E. Leiter, Shripad P. Tilak, Rangit R. Shah
American Journal of Neuroradiology Nov 1984, 5 (6) 787-790;
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