We have developed a compact Single Photon Emission MammoTomography (SPEMT) scanner capable of imaging the breast for the detection of small size (T1b) tumors. The scanner has a vertical-axis-of-rotation (VAOR) geometry, in which two gamma cameras orbit around a pendulous breast of a prone patient. The SPECT system is rotating around the vicinity of the breast in order to achieve high spatial resolution. The system field-of-view is 147 mm diameter and 41.6 mm height. Each head is made up of one pixilated Nal(TI) crystal matrix with 2.2 mm pitch and 6 mm thickness coupled to three Hamamatsu H8500 64-anodes PMT's. The measured performance confirm that the system could overcome the present clinical sensitivity limit (about 1 cm diameter) for the detection of small size tumors.
Tomographic approach to single-photon breast cancer imaging with a dedicated dual-head camera with VAOR (SPEMT): Detector characterization / Nicola, Belcari; Alberto Del, Guerra; Manuela, Camarda; Luigi, Spontoni; Sara, Vecchio; Paolo, Bennati; Maria Nerina, Cinti; Pani, Roberto; Renato, Campanini; Emiro, Iampieri; Nico, Lanconelli. - ELETTRONICO. - 4:(2007), pp. 2901-2905. (Intervento presentato al convegno IEEE Nuclear Science Symposium/Medical Imaging Conference tenutosi a Honolulu, HI nel OCT 26-NOV 03, 2007) [10.1109/nssmic.2007.4436741].
Tomographic approach to single-photon breast cancer imaging with a dedicated dual-head camera with VAOR (SPEMT): Detector characterization
PANI, Roberto;
2007
Abstract
We have developed a compact Single Photon Emission MammoTomography (SPEMT) scanner capable of imaging the breast for the detection of small size (T1b) tumors. The scanner has a vertical-axis-of-rotation (VAOR) geometry, in which two gamma cameras orbit around a pendulous breast of a prone patient. The SPECT system is rotating around the vicinity of the breast in order to achieve high spatial resolution. The system field-of-view is 147 mm diameter and 41.6 mm height. Each head is made up of one pixilated Nal(TI) crystal matrix with 2.2 mm pitch and 6 mm thickness coupled to three Hamamatsu H8500 64-anodes PMT's. The measured performance confirm that the system could overcome the present clinical sensitivity limit (about 1 cm diameter) for the detection of small size tumors.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
