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Proceedings Paper

Feasibility study of a TIMEPIX detector for mammography applications
Author(s): Carlos A. Ávila; Luis M. Mendoza; Gerardo A. Roque; Leonardo Loaiza; Jorge Racedo; Roberto Rueda
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Paper 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.

Paper Details

Date Published: 17 November 2017
PDF: 11 pages
Proc. SPIE 10572, 13th International Conference on Medical Information Processing and Analysis, 105720Z (17 November 2017);
Show Author Affiliations
Carlos A. Ávila, Univ. de los Andes (Colombia)
Luis M. Mendoza, Univ. Militar Nueva Granada (Colombia)
Gerardo A. Roque, Univ. de los Andes (Colombia)
Leonardo Loaiza, Univ. Nacional (Colombia)
Jorge Racedo, Univ. de los Andes (Colombia)
Roberto Rueda, Univ. de los Andes (Colombia)

Published in SPIE Proceedings Vol. 10572:
13th International Conference on Medical Information Processing and Analysis
Eduardo Romero; Natasha Lepore; Jorge Brieva; Juan David García, Editor(s)

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