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[Bone mineral density measurement techniques].

R Ibáñez1

  • 1Sección de Reumatología, Hospital de Navarra, Pamplona, 31008, Spain.

Anales Del Sistema Sanitario De Navarra
|January 13, 2004
PubMed
Summary

Dual X-ray absorciometry (DXA) is the leading bone density test, offering accurate fracture prediction. Other methods like quantitative computed tomography also have specific uses, despite drawbacks.

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Area of Science:

  • Orthopedics
  • Radiology
  • Biomedical Engineering

Context:

  • Bone mass density measurement is crucial for diagnosing and managing osteoporosis.
  • Advancements in densitometry have led to more accurate and accessible assessment tools.
  • Traditional methods are being superseded by more efficient and safer technologies.

Purpose:

  • To review and compare various bone mass density measurement techniques.
  • To discuss the advantages and disadvantages of each method.
  • To outline current indications for bone densitometry.

Summary:

  • Dual X-ray absorciometry (DXA) is the current gold standard for bone density assessment, particularly at the hip and lumbar spine, due to its accuracy and predictive value for fractures.
  • While older techniques like single/dual fotonic absorciometry are outdated, newer peripheral densitometers (DXA-based or broadband ultrasonic attenuation) offer utility.
  • Quantitative computed tomography (QCT) provides 3D bone analysis, distinguishing cortical and trabecular bone, but involves higher radiation and cost.

Impact:

  • Provides clinicians with a comprehensive overview to select the most appropriate bone density testing method.
  • Highlights the evolving landscape of osteoporosis diagnosis and management.
  • Informs clinical practice through revised indications based on risk factors for osteoporosis and fractures.

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