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

Dual-energy bone densitometry using a single 100 ns x-ray pulse

J F Seely1, C N Boyer, G E Holland

  • 1Naval Research Laboratory, Washington, DC 20375-5352, USA. john.seely@nrl.navy.mil

Medical Physics
|November 4, 1998
PubMed
Summary

A new portable X-ray source enables precise bone mineral density (BMD) measurements using dual-energy imaging. This technology offers accurate BMD assessment for medical imaging and bone densitometry with low patient radiation exposure.

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

High-resolution x-ray spectrometer for x-ray absorption fine structure spectroscopy.

The Review of scientific instruments·2023
Same author

Costs of Horn Fly (Diptera: Muscidae) Control for Cow-calf Producers in Tennessee and Texas, 2016.

Journal of economic entomology·2021
Same author

Energetic electrons driven in the polarization direction of an intense laser beam incident normal to a solid target.

High energy density physics·2019
Same author

Properties of laser-produced GaAs plasmas measured from highly resolved X-ray line shapes and ratios.

High energy density physics·2019
Same author

High resolution spectrometer for extended x-ray absorption fine structure measurements in the 6 keV to 15 keV energy range.

The Review of scientific instruments·2016
Same author

The cost of feeding bred dairy heifers on native warm-season grasses and harvested feedstuffs.

Journal of dairy science·2015

Area of Science:

  • Medical Physics
  • Biomedical Engineering
  • Radiological Sciences

Background:

  • Development of advanced X-ray sources for medical applications.
  • Need for portable and precise bone densitometry tools.

Purpose of the Study:

  • To develop and analyze a pulsed, portable hard X-ray source for medical imaging and flash X-ray absorptiometry.
  • To assess the feasibility of using this source for precision bone mineral density (BMD) determination.

Main Methods:

  • Utilized a Marx generator to power a field emission X-ray tube producing 30-300 keV, 100 ns pulses.
  • Developed a computer simulation model for the X-ray source, filtration, dual-energy detection, and absorption by bone and soft tissue.
  • Analyzed dual-energy properties of the X-ray fluence for precision densitometry.
Keywords:
Non-programmatic

Related Experiment Videos

Main Results:

  • Feasible determination of BMD in axial sites (lumbar spine, proximal femur) with 2% precision.
  • Achieved 2% accuracy in absolute BMD determination using a calibration phantom.
  • Patient exposure at 50 cm is 3.7 mR, with average bone and tissue doses of 0.6 and 4.3 mrem, respectively.

Conclusions:

  • The developed pulsed, portable hard X-ray source is suitable for precision bone densitometry.
  • The system offers dual-energy properties for enhanced diagnostic capabilities.
  • Portability and short observation times facilitate clinical application.