Title :
Tailoring PET time coincidence window using CT morphological information
Author_Institution :
Molecular Imaging, Siemens Med. Solution, Knoxville, TN
fDate :
Oct. 29 2006-Nov. 1 2006
Abstract :
In this paper we propose a general method to reduce electronic time coincidence window in PET, based on a-priori morphological information obtained via a CT scan. This allows rejecting randoms without losing true coincidence events, improving image quality and true data throughput. Experimental results show a significant random fraction decrease and an image variance reduction.
Keywords :
computerised tomography; medical image processing; positron emission tomography; CT morphological information; CT scan; PET time coincidence window; electronic time coincidence window; image quality; image variance reduction; random fraction; true coincidence event; true data throughput; Attenuation; Computed tomography; Degradation; Event detection; Image quality; Nuclear and plasma sciences; Nuclear electronics; Positron emission tomography; Radioactive decay; Throughput;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2006. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-0560-2
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2006.354385
