The purpose of this study is to evaluate the microcalcifications (MCs) detection capability of the BCT (Breast Computed Tomograph) scanner developed at by our group. The studies have been conducted using a breast phantom with MC inclusions simulated by small fragments of egg-shell (dimensions 350÷450 ¿m). The MCs are positioned in a cluster configuration in regions of interest (ROI) with a diameter of about 8 mm at different depths inside the phantom. The better conditions for MCs visibility/detectability have been investigated as a function of the detector pixel size (50, 200 ¿m), at different air Kerma (5, 7.5, 9 mGy) at X-ray tube voltage 80 kVp
X-ray Cone-Beam Breast Computed Tomography: Phantom Studies on Microcalcifications Visibility / Montesi, MARIA CRISTINA; Mettivier, Giovanni; Lauria, Adele; Russo, Paolo. - (2009), pp. 3965-3969. (Intervento presentato al convegno Nuclear Science Symposium and Medical imaging Conference tenutosi a Orlando, Florida, USA nel 24 Oct- 1 Nov, 2009) [10.1109/NSSMIC.2009.5401556].
X-ray Cone-Beam Breast Computed Tomography: Phantom Studies on Microcalcifications Visibility
MONTESI, MARIA CRISTINA;METTIVIER, GIOVANNI;LAURIA, ADELE;RUSSO, PAOLO
2009
Abstract
The purpose of this study is to evaluate the microcalcifications (MCs) detection capability of the BCT (Breast Computed Tomograph) scanner developed at by our group. The studies have been conducted using a breast phantom with MC inclusions simulated by small fragments of egg-shell (dimensions 350÷450 ¿m). The MCs are positioned in a cluster configuration in regions of interest (ROI) with a diameter of about 8 mm at different depths inside the phantom. The better conditions for MCs visibility/detectability have been investigated as a function of the detector pixel size (50, 200 ¿m), at different air Kerma (5, 7.5, 9 mGy) at X-ray tube voltage 80 kVpI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
