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

Mats Lundqvist; Mats Danielsson; Bjoern Cederstroem; Valery Chmill; Alexander Chuntonov; Magnus Aslund

doi:10.1117/12.480251

5 June 2003 Measurements on a full-field digital mammography system with a photon counting crystalline silicon detector

Mats Lundqvist, Mats Danielsson, Bjoern Cederstroem, Valery Chmill, Alexander Chuntonov, Magnus Aslund

Proceedings Volume 5030, Medical Imaging 2003: Physics of Medical Imaging; (2003) https://doi.org/10.1117/12.480251
Event: Medical Imaging 2003, 2003, San Diego, California, United States

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.

Citation Download Citation

Mats Lundqvist, Mats Danielsson, Bjoern Cederstroem, Valery Chmill, Alexander Chuntonov, and Magnus Aslund "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, (5 June 2003); https://doi.org/10.1117/12.480251

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