Title :
High resolution PET image reconstruction for the Siemens MR/PET-hybrid BrainPET scanner in LOR space
Author :
Scheins, J.J. ; Tellmann, L. ; Weirich, Ch ; Kops, E. Rota ; Michel, Ch ; Byars, L.G. ; Schmand, M. ; Herzog, H.
Author_Institution :
Inst. of Neurosci. & Med., Forschungszentrum Julich, Julich, Germany
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
The Siemens MR/PET-hybrid BrainPET scanner allows the simultaneous acquisition of PET listmode data and MR sequences. The full benefit of the 3D listmode data in terms of image quality is realised with a novel LOR space reconstruction based on PRESTO (PET REconstruction Software TOolkit). A pre-calculated, memory-resident system matrix has been applied for the iterative MLEM/OSEM reconstruction taking all 250 million physical LORs without rebinning into account. Several images are presented documenting the achieved high image quality.
Keywords :
biomedical MRI; biomedical equipment; image reconstruction; iterative methods; medical image processing; positron emission tomography; LOR space reconstruction; MR sequences; PET image reconstruction; PET listmode data; PET reconstruction software toolkit; PRESTO; Siemens MR-PET hybrid BrainPET scanner; high resolution PET; iterative MLEM-OSEM reconstruction; memory resident system matrix; Assembly; Biomedical imaging; Crystals; Detectors; Image quality; Image reconstruction; Image resolution; Magnetic heads; Positron emission tomography; Symmetric matrices;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5401596
