Analytical calculation of volumes-of-intersection for iterative, fully 3-D PET reconstruction

Use of iterative algorithms to reconstruct three-dimensional (3-D) positron emission tomography (PET) data requires the computation of the system probability matrix. The pure geometrical contribution can easily be approximated by the length-of-intersection (LOI) between lines-of-response (LOR) and i...

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Veröffentlicht in:	IEEE transactions on medical imaging 2006-10, Vol.25 (10), p.1363-1369
Hauptverfasser:	Scheins, J.J., Boschen, F., Herzog, H.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithm design and analysis Algorithms Biomedical imaging Brain - diagnostic imaging Humans Image Enhancement - methods Image Interpretation, Computer-Assisted - methods Image quality Image reconstruction Image sampling Imaging, Three-Dimensional - methods Information Storage and Retrieval - methods Iterative methods Iterative reconstruction memory-resident system matrix Positron emission tomography positron emission tomography (PET) Positron-Emission Tomography - methods Probability Reproducibility of Results Sensitivity and Specificity Shape Studies Symmetric matrices symmetries volumes-of-intersection (VOI)
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