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Proceedings Paper

Breast tomography with synchrotron radiation
Author(s): Silvia Pani; Fulvia Arfelli; Diego Dreossi; Francesco Montanari; Renata Longo; Alessandro Olivo; Paolo Poropat; Fabrizio Zanconati; Ludovico Dalla Palma; Edoardo Castelli
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Paper Abstract

A feasibility study of breast CT with synchrotron radiation is currently being carried on at Elettra, the Trieste synchrotron radiation facility. Breast CT cannot be implemented easily with conventional radiographic tubes, due to the high dose that would be delivered to the breast by a polychromatic X-ray spectrum. The possibility of tuning the beam energy, available at a synchrotron radiation beamline, allows a significant reduction in the delivered dose, and at the same time the use of monochromatic beams avoids beam hardening artifacts on the reconstructed image. Images of in vitro breast tissue samples have been acquired by means of a high efficiency linear array detector coupled to a VLSI single photon counting readout electronics. The pixel width, determining the pixel size of the reconstructed image, is 200 micrometers , while the pixel height, determining the CT slice thickness, is 300 micrometers . Tomograms have been reconstructed by means of standard filtered backprojection algorithms. Images of normal and pathologic breast tissue samples show a good visibility of glandular structure. The delivered dose was in all cases comparable to the one delivered in clinical planar mammography. Due to the promising results we obtained, in vivo studies are under evaluation.

Paper Details

Date Published: 3 May 2002
PDF: 8 pages
Proc. SPIE 4682, Medical Imaging 2002: Physics of Medical Imaging, (3 May 2002); doi: 10.1117/12.465563
Show Author Affiliations
Silvia Pani, Univ. degli Studi di Trieste and INFN (Italy)
Fulvia Arfelli, Univ. degli Studi di Trieste and INFN (Italy)
Diego Dreossi, Univ. degli Studi di Trieste and INFN (Italy)
Francesco Montanari, Sincrotrone Trieste SCpA (Italy)
Renata Longo, Univ. degli Studi di Trieste and INFN (Italy)
Alessandro Olivo, Univ. degli Studi di Trieste and INFN (Italy)
Paolo Poropat, Univ. degli Studi di Trieste and INFN (Italy)
Fabrizio Zanconati, Ospedale di Cattinara/Univ. degli Studi di Trieste (Italy)
Ludovico Dalla Palma, Ospedale di Cattinara/Univ. degli Studi di Trieste (Italy)
Edoardo Castelli, Univ. degli Studi di Trieste and INFN (Italy)


Published in SPIE Proceedings Vol. 4682:
Medical Imaging 2002: Physics of Medical Imaging
Larry E. Antonuk; Martin Joel Yaffe, Editor(s)

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