Articles

Skeletal Radiology

, Volume 20, Issue 1, pp 25-29

Accuracy of vertebral mineral determination by dual-energy quantitative computed tomography

  • W. -D. ReinboldAffiliated withUniversity Clinic of Freiburg, Radiological Clinic
  • , C. P. AdlerAffiliated withInstitute of Pathology, University of Freiburg
  • , W. A. KalenderAffiliated withSiemens AG
  • , R. LenteAffiliated withUniversity Clinic of Freiburg, Radiological Clinic

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Abstract

Quantitative computed tomography is an established method for the non-invasive assessment of bone mineral content. Scanning with two different X-ray energies allows material-selective image reconstruction and separation on the basis of differing atomic numbers. As proven by chemophysical analysis of 45 bone samples, dual-energy quantitative computed tomography with basis material decomposition allows highly accurate measurement of bone mineral density with an error of 1.4%, independent of fat and soft tissue content.

Key words

Dual-energy quantitative computed tomography Basis material decomposition Accuracy