Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Single X-ray absorptiometry of the forearm: precision, correlation, and reference data

T L Kelly1, G Crane, D T Baran

  • 1Hologic, Inc., Waltham, Massachusetts 02154.

Calcified Tissue International
|March 1, 1994
PubMed
Summary

This study evaluated a new single X-ray absorptiometry (SXA) device, finding it precise for bone mineral content and density measurements. It showed high correlation with dual energy X-ray absorptiometry (DXA) and superior image quality.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Dual-conjugate wavefront generation for adaptive optics.

Optics express·2009
Same author

White-light performance of a polarization-independent liquid-crystal phase modulator.

Applied optics·2008
Same author

Phase-aberration correction with dual liquid-crystal spatial light modulators.

Applied optics·2008
Same author

A sound strategy for bones.

Journal of clinical densitometry : the official journal of the International Society for Clinical Densitometry·2004
Same author

Bone mineral density and broadband ultrasound attenuation with estrogen treatment of postmenopausal women.

Journal of clinical densitometry : the official journal of the International Society for Clinical Densitometry·2004
Same author

Bright light and LEET effects on circadian rhythms, sleep and cognitive performance.

Stress medicine·2001

Area of Science:

  • Medical Imaging
  • Radiology
  • Bone Densitometry

Background:

  • Accurate bone mineral density (BMD) assessment is crucial for diagnosing osteoporosis.
  • Existing dual energy X-ray absorptiometry (DXA) is a standard but can be limited.
  • Single X-ray absorptiometry (SXA) offers a potential alternative with a novel X-ray tube source.

Purpose of the Study:

  • To evaluate the performance of a new single X-ray absorptiometry (SXA) device.
  • Assess SXA's precision, scan time, image quality, and correlation with DXA.
  • Establish a preliminary reference database for SXA measurements.

Main Methods:

  • In vivo and in vitro precision measurements using the SXA device.
  • Comparison of SXA results with a dual energy X-ray absorptiometry (DXA) device.

Related Experiment Videos

  • Development of a reference database from 151 healthy Caucasian American women.

    • Main Results:

    • In vivo precision: 0.66% (BMC), 1.05% (BMD).
    • In vitro precision: 0.53% (BMC).
    • High correlation with DXA (r=0.97 BMC, r=0.96 BMD).
    • Scan time: 4 minutes; Radiation exposure: 1.68 mrem.
    • Image quality superior to SPA, comparable to DXA.

    Conclusions:

    • The evaluated SXA device demonstrates high precision and accuracy for bone mineral content and density.
    • SXA shows excellent correlation with DXA, suggesting its potential as a reliable diagnostic tool.
    • The device offers rapid scanning, low radiation exposure, and superior image quality, making it a promising advancement in bone densitometry.