Advertisement

Clinical Optimization of Filters in Direct a-Se FFDM (Full Field Digital Mammography) System

  • Nachiko Uchiyama
  • Noriyuki Moriyama
  • Mayumi Kitagawa
  • Shiho Gomi
  • Yuichi Nagai
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4046)

Abstract

We evaluated three combinations of filters (Mo/Mo, Mo/ Rh, and W /Rh) in direct a-Se FFDM system to optimize radiation dose clinically. We measured CNR (Contrast to Noise Ratio) as physical characteristics changing radiation dose and phantom thickness in clinical range. In 20, 30, 40, and 50mm PMMA phantoms, Mo / Mo showed the best performances. On the other hand, in 60 and 70 mm, W/Rh 30kV showed best performance. In addition, in 40 and 50mm PMMA phantoms, W/Rh 30kV showed the second best performance. In direct a-Se FFDM system, W/Rh was valuable in minimizing radiation dose.

Keywords

Digital Mammography Clinical Range Cancer Screen Full Field Digital Mammography Minimize Radiation Dose 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Rivetti, S., danielli, C., Maggi, S., et al.: Comparison of Different Commercial FFDM units by means of Physical Characterization and Contrast-Detail analysis. In: RSNA 2004 (2004)Google Scholar
  2. 2.
    Lo, J., Samei, E., Jesneck, J., et al.: Radiographic technique optimization for Amorphous Selenium FFDM System: Phantom and Patient Results. In: RSNA 2004 (2004)Google Scholar
  3. 3.
    Schulz-Wendtland, R., Wenkel, E., Lell, M., et al.: Digital Luminance Mammography (CR) versus Full Field Digital Mammography: A Phantom Study. In: RSNA 2004 (2004)Google Scholar
  4. 4.
    Alli, K., Bloomquist, Shen, S.Z., Mawsley, G., Bright, S., Yaffe, M.: Acceptance Testing of digital Mammography Units for the ACRIN / DMIST Study. In: IWDM 2002, pp. 85–89 (2002)Google Scholar
  5. 5.
    Saunders, R.S., Samei, E., Jesneck, J.L., et al.: Physical characterization of a prototype selenium-based full field digital mammography detector. Med. Phys. 32, 588–599 (2005)CrossRefGoogle Scholar
  6. 6.
    The European protocol for the Quality Control of the physical and technical aspects of mammography screening; Addendum on Digital Mammography. version 1.0, 19 (November 2003)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Nachiko Uchiyama
    • 1
  • Noriyuki Moriyama
    • 1
  • Mayumi Kitagawa
    • 1
  • Shiho Gomi
    • 1
  • Yuichi Nagai
    • 2
  1. 1.Department of Cancer Screening, Research Center for Cancer ScreeningNational Cancer CenterTokyoJapan
  2. 2.Department of Radiology, Research Center for Cancer ScreeningNational Cancer CenterTokyoJapan

Personalised recommendations