Dual-kVp radiography

  • William R. Brody
  • , F. Graham Sommer
  • , Leonard A. Lehmann
  • , Albert Macovski
  • , Robert E. Alvarez
  • , Norbert J. Pelc
  • , Stephen J. Riederer
  • , Anne Hall

Research output: Contribution to journalArticlepeer-review

Abstract

The use of information contained in the transmitted x-ray spectrum provides the capability for selective removal of substances of a particular mean atomic number in projection radiographs. Using a prototype system for line-scanned digital radiography, x-ray images were produced with two different x-ray spectra by modulating the kVp applied to the x-ray source and filtering the x-ray beam. Using a previously described Compton/photoelectric decomposition algorithm, subtraction images are made with bone or soft-tissue (water) shadows removed. Applications to chest, abdominal and skeletal imaging in-vivo are demonstrated.

Original languageEnglish (US)
Pages (from-to)239-243
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume273
DOIs
StatePublished - Jul 16 1981
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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