Title :
A 68Ge PET hot-sphere phantom with no cold shells
Author :
Hamill, James J. ; Arnsdorff, C. Eric ; Casey, Michael E. ; Liu, Xinli ; Raulston, W. Jonathan
Author_Institution :
Molecular Imaging, Simens Med. Solutions, Knoxville, TN, USA
Abstract :
A cylindrical 20 cm by 20 cm 68Ge PET resolution phantom was created. The phantom contained one cold (non-radioactive) silicone sphere of diameter 32 mm, and nine hot silicone spheres with diameters ranging from 4 to 25 mm in diameter. No shell of non-radioactive material was used to contain the silicone. The ten spheres were arranged on a circular locus 10 cm in diameter, in a background of polyurethane whose specific activity was 4.6 times lower than that of the hot spheres. In a 15-hour PET/CT study of this phantom, all objects were detected.
Keywords :
phantoms; positron emission tomography; silicones; 68Ge PET hot-sphere phantom; CT; cold nonradioactive silicone sphere; hot silicone spheres; polyurethane; Biomedical imaging; Image reconstruction; Image resolution; Imaging phantoms; Medical simulation; Molecular imaging; Positron emission tomography; Reconstruction algorithms; Sampling methods; Telephony;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2005 IEEE
Print_ISBN :
0-7803-9221-3
DOI :
10.1109/NSSMIC.2005.1596626
