Dual-energy imaging in full-field digital mammography: A phantom study

A. Taibi, S. Fabbri, P. Baldelli, C. di Maggio, G. Gennaro, M. Marziani, A. Tuffanelli, M. Gambaccini

Research output: Contribution to journalArticlepeer-review


A dual-energy technique which employs the basis decomposition method is being investigated for application to digital mammography. A three-component phantom, made up of plexiglas, polyethylene and water, was doubly exposed with the full-field digital mammography system manufactured by General Electric. The 'low' and 'high' energy images were recorded with a Mo/Mo anode-filter combination and a Rh/Rh combination, respectively. The total dose was kept within the acceptable levels of conventional mammography. The first hybrid images obtained with the dual-energy algorithm are presented in comparison with a conventional radiograph of the phantom. Image-quality characteristics at contrast cancellation angles between plexiglas and water are discussed. Preliminary results show that a combination of a standard Mo-anode 28 kV radiograph with a Rh-anode 49 kV radiograph provides the best compromise between image-quality and dose in the hybrid image.

Original languageEnglish
Pages (from-to)1945-1956
Number of pages12
JournalPhysics in Medicine and Biology
Issue number13
Publication statusPublished - Jul 7 2003

ASJC Scopus subject areas

  • Biomedical Engineering
  • Physics and Astronomy (miscellaneous)
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology


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