Title :
Performance of a high sensitivity PET scanner based on LSO panel detectors
Author :
Conti, M. ; Bendriem, B. ; Casey, M. ; Eriksson, L. ; Jakoby, B. ; Jones, W.F. ; Jones, J. ; Michel, C. ; Nahmias, C. ; Panin, V. ; Rappoport, V. ; Sibomana, M. ; Townsend, D.W.
Author_Institution :
Siemens Med. Solutions, Molecular Imaging, Knoxville, TN, USA
fDate :
6/1/2006 12:00:00 AM
Abstract :
We present the results of performance measurements for a new rotating panel detector research tomograph. The tomograph consists of five large-area lutetium oxyorthosilicate (LSO) panel detectors. A long axial field of view (53 cm), high sensitivity, and high count rate capability (due to recently developed fast electronics) are the most important features of this design. A peak noise equivalent count rate (NEC) of about 184 kcps has been measured, together with 2% absolute sensitivity for a 70 cm 18F line source and a spatial resolution less than 5 mm. Whole body patient images have been obtained, in two bed positions, 10 minutes per bed. An Ordinary Poisson Ordered Subset Expectation Maximization 3D algorithm (OP-OSEM3D) has been implemented on a dedicated computer cluster for reconstruction.
Keywords :
biomedical imaging; image resolution; positron emission tomography; solid scintillation detectors; 18F line source; LSO panel detector; high count rate capability; high sensitivity PET scanner; lutetium oxyorthosilicate panel detectors; patient images; peak noise equivalent count rate; rotating panel detector research tomograph; spatial resolution; Biomedical imaging; Event detection; Image reconstruction; Molecular imaging; National electric code; Noise measurement; Positron emission tomography; Solid scintillation detectors; Spatial resolution; Whole-body PET; Lutetium oxyorthosilicate (LSO); panel detector; positron emission tomography (PET); whole body;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2006.875153
