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

doi:10.1117/12.931810

16 July 1981 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

Author Affiliations +

Proceedings Volume 0273, Application of Optical Instrumentation in Medicine IX; (1981) https://doi.org/10.1117/12.931810
Event: Application of Optical Instrumentation in Medicine, 1981, San Francisco, United States

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.

Citation Download Citation

William R. Brody, F. Graham Sommer, Leonard A Lehmann, Albert Macovski, Robert E. Alvarez, Norbert J. Pelc, Stephen J. Riederer, and Anne Hall "Dual-kVp Radiography", Proc. SPIE 0273, Application of Optical Instrumentation in Medicine IX, (16 July 1981); https://doi.org/10.1117/12.931810

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