Generalized image combinations in dual KVP digital radiography

L. A. Lehmann, R. E. Alvarez, A. Macovski, W. R. Brody, N. J. Pelc, Stephen J Riederer, A. L. Hall

Research output: Contribution to journalArticle

513 Citations (Scopus)

Abstract

Dual energy basis decomposition techniques apply to single projection radiographic imaging. The high and low energy images are non-linearly transformed to generate two energy-independent images characterizing the integrated Compton/photoelecric attenuation components. Characteristic linear combinations of these two basis images identify unknown materials, cancel known materials, and generate synthesized monoenergetic images. The problems of intervening materials and material displacement are solved in general for a wide class of clinical imaging tasks. The basis projection angle identifies one from a family of energy selective imaging tasks, and such performance measures as the contrast enhancement factor (CEF) and signal to noise ratio (SNR) are expressed as functions of this angle. Algorithms for the decomposition of high and low energy measurements are compared and experimental images are included.

Original languageEnglish (US)
Pages (from-to)659-667
Number of pages9
JournalMedical Physics
Volume8
Issue number5
DOIs
StatePublished - 1981
Externally publishedYes

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Radiographic Image Enhancement
Task Performance and Analysis
Signal-To-Noise Ratio

ASJC Scopus subject areas

  • Biophysics

Cite this

Lehmann, L. A., Alvarez, R. E., Macovski, A., Brody, W. R., Pelc, N. J., Riederer, S. J., & Hall, A. L. (1981). Generalized image combinations in dual KVP digital radiography. Medical Physics, 8(5), 659-667. https://doi.org/10.1118/1.595025

Generalized image combinations in dual KVP digital radiography. / Lehmann, L. A.; Alvarez, R. E.; Macovski, A.; Brody, W. R.; Pelc, N. J.; Riederer, Stephen J; Hall, A. L.

In: Medical Physics, Vol. 8, No. 5, 1981, p. 659-667.

Research output: Contribution to journalArticle

Lehmann, LA, Alvarez, RE, Macovski, A, Brody, WR, Pelc, NJ, Riederer, SJ & Hall, AL 1981, 'Generalized image combinations in dual KVP digital radiography', Medical Physics, vol. 8, no. 5, pp. 659-667. https://doi.org/10.1118/1.595025
Lehmann LA, Alvarez RE, Macovski A, Brody WR, Pelc NJ, Riederer SJ et al. Generalized image combinations in dual KVP digital radiography. Medical Physics. 1981;8(5):659-667. https://doi.org/10.1118/1.595025
Lehmann, L. A. ; Alvarez, R. E. ; Macovski, A. ; Brody, W. R. ; Pelc, N. J. ; Riederer, Stephen J ; Hall, A. L. / Generalized image combinations in dual KVP digital radiography. In: Medical Physics. 1981 ; Vol. 8, No. 5. pp. 659-667.
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