Dual-energy projection radiography: Initial clinical experience

W. R. Brody, D. M. Cassel, F. G. Sommer, L. A. Lehmann, A. Macovski, R. E. Alvarez, N. J. Pelc, S. J. Riederer, A. L. Hall

Research output: Contribution to journalArticle

78 Scopus citations


Selective removal of substances of a particular mean atomic number in projection radiographs has been accomplished using an experimental system for line-scanned digital radiography. X-ray images were produced with two different X-ray spectra by modulating the kilovoltage applied to the X-ray source and the filtration between the source and the patient. A Compton/photoelectric decomposition algorithm provided subtraction images 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)201-205
Number of pages5
JournalUnknown Journal
Issue number2
StatePublished - Jan 1 1981


ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Brody, W. R., Cassel, D. M., Sommer, F. G., Lehmann, L. A., Macovski, A., Alvarez, R. E., Pelc, N. J., Riederer, S. J., & Hall, A. L. (1981). Dual-energy projection radiography: Initial clinical experience. Unknown Journal, 137(2), 201-205. https://doi.org/10.2214/ajr.137.2.201