In the framework of the realization of dedicated Cone-Beam Breast Computed Tomography (CBBCT) apparatus we report the MTF characterization of our prototype having the best performance in terms of detector pixel size and X ray focal spot than any other systems built or under construction. From our measurement we estimated a value of the longitudinal and transverse resolution of 4-5 lp/mm (at 10% MTF). The presence of CT image features has been observed and attributed of specific phase contrast effects.
Measurement of the MTF of a Cone-Beam Breast Computed Tomography laboratory scanner / Mettivier, Giovanni; Montesi, MARIA CRISTINA; Lauria, Adele; Russo, Paolo. - (2009), pp. 3958-3964. (Intervento presentato al convegno Nuclear Science Symposium and Medical Imanging Conference tenutosi a Orlando, Florida, Usa nel 24 Oct - 1 Nov, 2009) [10.1109/NSSMIC.2009.5401555].
Measurement of the MTF of a Cone-Beam Breast Computed Tomography laboratory scanner
METTIVIER, GIOVANNI;MONTESI, MARIA CRISTINA;LAURIA, ADELE;RUSSO, PAOLO
2009
Abstract
In the framework of the realization of dedicated Cone-Beam Breast Computed Tomography (CBBCT) apparatus we report the MTF characterization of our prototype having the best performance in terms of detector pixel size and X ray focal spot than any other systems built or under construction. From our measurement we estimated a value of the longitudinal and transverse resolution of 4-5 lp/mm (at 10% MTF). The presence of CT image features has been observed and attributed of specific phase contrast effects.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
