Feasibility study of a TIMEPIX detector for mammography applications

Carlos A. Ávila; Luis M. Mendoza; Gerardo A. Roque; Leonardo Loaiza; Jorge Racedo; Roberto Rueda

doi:10.1117/12.2285910

17 November 2017 Feasibility study of a TIMEPIX detector for mammography applications

Carlos A. Ávila, Luis M. Mendoza, Gerardo A. Roque, Leonardo Loaiza, Jorge Racedo, Roberto Rueda

Proceedings Volume 10572, 13th International Conference on Medical Information Processing and Analysis; 105720Z (2017) https://doi.org/10.1117/12.2285910
Event: 13th International Symposium on Medical Information Processing and Analysis, 2017, San Andres Island, Colombia

Abstract

We present a comparison study of two X-ray systems for mammography imaging. One is a SELENIA clinical system and the second is a TIMEPIX based system. The aim of the study is to determine the capability of a TIMEPIX detector for mammography applications. We first compare signal to noise ratio (SNR) of X-ray images of Al₂O₃ spheres with diameters of 0.16mm, 0.24mm and 0.32mm, of a commercial mammography accreditation phantom CIRS015, obtained with each system. Then, we make a similar comparison for a second phantom built with Hydroxyapatite crystals with different morphology and sizes ranging between 0.15mm and 0.83mm, which are embedded within the same block of PMMA of the CIRS015 phantom. Our study allows us to determine the minimum size of Al₂O₃ spheres on the order of 240μm, with 33% lower SNR for the TIMEPIX system as compared to the SELENIA system. When comparing the images of Hydroxyapatite crystals from both systems, the minimum size observed is about 300μm, with 23% lower SNR for TIMEPIX.

Citation Download Citation

Carlos A. Ávila, Luis M. Mendoza, Gerardo A. Roque, Leonardo Loaiza, Jorge Racedo, and Roberto Rueda "Feasibility study of a TIMEPIX detector for mammography applications", Proc. SPIE 10572, 13th International Conference on Medical Information Processing and Analysis, 105720Z (17 November 2017); https://doi.org/10.1117/12.2285910

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