Friday, November 27, 2009

Pitfalls in DXA

DXA may be falsely elevated due to the following factors:
  • Aortic calcifications
  • Scoliosis
  • Osteoarthritic changes
  • Compression fractures
  • Enteric contrast
  • Renal stones
  • Bone grafts
DXA may be falsely decreased due to the following factors:
  • Laminectomy
  • Lytic lesions


Mettler FA and Guiberteau MJ. Chapter 9: Skeletal System. In Essentials of Nuclear Medicine Imaging. Fifth Edition. Saunders, Philadelphia. 2006

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