Title :
Proposal of a real time reconstruction processor for 3-D positron emission tomography
Author :
Di Sciasco, E. ; Guzzardi, R. ; Marino, D.
Author_Institution :
Facolta´´ di Ingegneria, Lecce Univ., Italy
Abstract :
A specialized real-time reconstruction processor for three-dimensional positron emission tomography is proposed. It is based on an expandible SIMD (single-instruction multiple-data) parallel line processor. It is completely parallel and pipelined, and it is based on a bit-serial approach. The architecture, extremely suitable for ASIC (application-specific integrated circuit) implementation, has been designed to be compatible with existing tomograph prototypes, but it is easily scalable towards foreseen new solutions. The reconstruction processing time of the single coincidence line is of the order of the address-encoding time (at present 256 ns). The silicon design, in the SOLO 2030+41 environment with ES2 standard cells, is in progress, and it has been validated by simulations performed using the SILOS II simulator
Keywords :
computerised tomography; image reconstruction; medical image processing; radioisotope scanning and imaging; real-time systems; 256 ns; 3D positron emission tomography; SILOS II simulator; address-encoding time; application-specific integrated circuit; bit-serial approach; medical diagnostic imaging; nuclear medicine; real time reconstruction processor; reconstruction processing time; single-instruction multiple-data parallel line processor; Application specific integrated circuits; Biological system modeling; Detectors; Image reconstruction; Pipeline processing; Positron emission tomography; Proposals; Prototypes; Reconstruction algorithms; Signal to noise ratio;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1992., Conference Record of the 1992 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-0884-0
DOI :
10.1109/NSSMIC.1992.301006
