Imaging study of a phase-sensitive breast-CT system in continuous acquisition mode

Delogu, P.;GOLOSIO, BRUNO;Fedon, C.;Arfelli, F.;Bellazzini, R.;Brez, A.;Brun, F.;Lillo, F. D.;Dreossi, D.;Mettivier, G.;Minuti, M.;Oliva, P.;Pichera, M.;Rigon, L.;Russo, P.;Sarno, A.;Spandre, G.;Tromba, G.;Longo, R.

2017-01-01

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Abstract

The SYRMA-CT project aims to set-up the first clinical trial of phase-contrast breast Computed Tomography with synchrotron radiation at the SYRMEP beamline of Elettra, the Italian synchrotron light source. The challenge in a dedicated breast CT is to match a high spatial resolution with a low dose level. In order to fulfil these requirements, the SYRMA-CT project uses a large area CdTe single photon counting detector (Pixirad-8), simultaneous algebraic reconstruction technique (SART) and phase retrieval pre-processing. This work investigates the imaging performances of the system in a continuous acquisition mode and with a low dose level towards the clinical application. A custom test object and a large surgical sample have been studied. © 2017 IOP Publishing Ltd and Sissa Medialab srl.