High resolution PET image reconstruction for the Siemens MR/PET-hybrid BrainPET scanner in LOR space
Nuclear Science Symposium Conference Record(2009)
摘要
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.
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关键词
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,image quality,high resolution,crystals,symmetric matrices,image resolution
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