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Proceedings Article

Measurements on a full-field digital mammography system with a photon counting crystalline silicon detector

[+] Author Affiliations
Mats Lundqvist, Valery Chmill

Royal Institute of Technology (Sweden)

Mats Danielsson, Bjoern Cederstroem

Mamea Imaging AB (Sweden) and Royal Institute of Technology (Sweden)

Alexander Chuntonov, Magnus Aslund

Mamea Imaging AB (Sweden)

Proc. SPIE 5030, Medical Imaging 2003: Physics of Medical Imaging, 547 (June 9, 2003); doi:10.1117/12.480251
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From Conference Volume 5030

  • Medical Imaging 2003: Physics of Medical Imaging
  • Martin J. Yaffe; Larry E. Antonuk
  • San Diego, CA | February 15, 2003

abstract

Sectra Microdose is the first single photon counting mammography detector. An edge-on crystalline silicon detector is connected to application specific integrated circuits that individually process each photon. The detector is scanned across the breast and the rejection of scattered radiation exceeds 97% without the use of a Bucky. Processing of each x-rays individually enables an optimization of the information transfer from the x-rays to the image in a way previously not possible. Combined with an almost absence of noise from scattered radiation and from electronics we foresee a possibility to reduce the radiation dose and/or increase the image quality. We will discuss fundamental features of the new direct photon counting technique in terms of dose efficiency and present preliminary measurements for a prototype on physical parameters such as Noise Power Spectra (NPS), MTF and DQE.

© (2003) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Mats Lundqvist ; Mats Danielsson ; Bjoern Cederstroem ; Valery Chmill ; Alexander Chuntonov, et al.
"Measurements on a full-field digital mammography system with a photon counting crystalline silicon detector", Proc. SPIE 5030, Medical Imaging 2003: Physics of Medical Imaging, 547 (June 9, 2003); doi:10.1117/12.480251; http://dx.doi.org/10.1117/12.480251


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