Dual-energy mammography: A detector analysis

John M Boone, G. S. Shaber, M. Tecotzky

Research output: Contribution to journalArticle

96 Scopus citations

Abstract

Dual-energy mammography acquisition scenarios employing single-shot techniques are examined using computer simulation. A figure of merit of the signal-to-noise ratio square over the glandular dose was chosen for the optimization task due to its exposure independence. Doses were evaluated using Monte Carlo techniques. The effects of kilovoltage, prepatient filtration, front detector thickness, mid-detector filtration thickness and composition were studied. Of the six detector pairs studied (Y2O2S/Gd2O2S, SrFBr/BaFBr, Y2O2S/LaOBr, Y2O2S/CaWO4, Y2O2S/YTaO4, and Y2O2S/LuTaO4), Y2O2S/Gd2O2S and SrFBr/BaFBr were found to be the best combinations. The effects of scatter and signal quantization were also examined. An alternative display technique whereby the tissue-subtracted (i.e., calcium) image is colorized and overlaid onto the conventional mammogram is introduced.

Original languageEnglish (US)
Pages (from-to)665-675
Number of pages11
JournalMedical Physics
Volume17
Issue number4
DOIs
StatePublished - 1990
Externally publishedYes

Keywords

  • Color radiography
  • Detector
  • Dose
  • Dual energy
  • Mammography

ASJC Scopus subject areas

  • Biophysics

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