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. 1985 May-Jun;20(3):306-10.
doi: 10.1097/00004424-198505000-00014.

Quantitative computed tomography for spinal density measurement. Factors affecting precision

D I Rosenthal, M A Ganott, G Wyshak, D M Slovik, S H Doppelt, R M Neer

Quantitative computed tomography for spinal density measurement. Factors affecting precision

D I Rosenthal et al. Invest Radiol. 1985 May-Jun.

Abstract

Quantitative computed tomography (QCT) was performed in duplicate on 84 patients to test the short-term precision of the technique. Statistical analysis of the data revealed that precision was not a function of spinal density. It appeared to be worse in osteopenic individuals only when expressed as a percentage. Precision was slightly better in male than in female patients. There is a 90% likelihood that a duplicate measurement will fall within 20 CT units of the first determination in female patients and within ten units in male patients.

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