Abstract
Dual-energy X-ray absorptiometry (DXA) is widely used for measurement of bone mineral
density (BMD). In routine clinical practice, a diversity of DXA scan findings that
deviate from anticipated anatomical landmarks and require a sophisticated approach
to patient positioning and scan analysis may be identified. Recognition of various
artifacts and pathologic processes that can falsely increase the measured BMD is essential
to accurate DXA scan analysis. Critical evaluation of the DXA scan image, and careful
appraisal of numeric data on the computer-generated printout by clinicians and radiology
technologists are instrumental to ensure correct DXA scan interpretation. We demonstrate
a spectrum of incidental findings that may influence BMD measurements and analyze
common pitfalls of DXA scan interpretation. Radiographic correlation can help further
evaluate a suspected abnormality displayed on the DXA image.
Keywords
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References
- Consensus development conference: prophylaxis and treatment of osteoporosis.Am J Med. 1991; 90: 107-110
- Consensus development conference: diagnosis, prophylaxis and treatment of osteoporosis.Am J Med. 1993; 94: 646-650
- The diagnosis of osteoporosis.J Bone Miner Res. 1994; 9: 1137-1141
- Osteoporosis. Academic Press, San Diego1996: 420-421
- A model of the lifetime osteoporosis impact.Arch Intern Med. 1991; 151: 2026-2032
- Musculoskeletal conditions in the United States. American Academy of Orthopaedic Surgeons, Park Ridge, IL1992
- Hip fracture outcomes in people age 50 and over: background paper. US Government Printing Office, Washington, DC1994 (OTA-BP-H-120, 95 pp.)
- Effectiveness and costs of osteoporosis screening and hormone replacement therapy: Vol II. Evidence on benefits, risks and costs. US Government Printing Office, Washington, DC1995 (OTA-BP-H-144, August)
- Guidelines for diagnosis and management of osteoporosis.Osteoporosis Int. 1997; 7: 390-406
- Noninvasive assessment of bone mineral and structure: state of the art.J Bone Miner Res. 1996; 11: 707-730
- Universal standardization for dual X-ray absorptiometry: patient and phantom cross-calibration results.J Bone Miner Res. 1994; 9: 1503-1514
- Dual-energy X-ray absorptiometry for the management of bone disease.Phys Med Rehabil Clin N Am. 1995; 6: 507-537
- Movement artifact and dual X-ray absorptiometry.J Clin Densitom. 1998; 1: 141-147
- Computerized bone densitometric analysis: operator-dependent errors.Radiology. 1999; 211: 467-470
- The effect of vertebral collapse on spinal bone mineral density measurements in osteoporosis.Bone Miner. 1992; 18: 267-272
Article info
Publication history
Received:
June 18,
2001
Identification
Copyright
© 2002 Elsevier Science Inc. Published by Elsevier Inc. All rights reserved.
