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Comparison of single- and dual-energy quantitative computed tomography for therapy control under antiosteoporotic
T Pfeifer1, U Ulrich, M W Knöferl
1Department of Diagnostic Radiology, University of Ulm, Germany.
In Vivo (Athens, Greece)
|May 1, 1994
Abstract:
Lumbar spine bone mineral density was determined in 50 female patients (mean age: 55.4 +/- 12.3 years), who were treated because of osteoporosis or osteopenia. Bone mineral density was assessed using single-energy QCT with 80 and 120 kV tube voltage and with dual-energy QCT. Compared to single-energy QCT, dual-energy QCT showed much higher variability of the bone density values obtained. Therefore we conclude that single energy QCT is a method that allows precise and reproducible determination of spinal bone mineral content under clinical conditions which cannot be further improved by the use of dual-energy QCT.