Abstract
Positron emission tomography (PET) has received increasing attention for the use in physiological studies in medical diagnosis. Most PET systems have a circular array of bismuth germanate (BGO) detectors and the coincidence detection of two annihilation photons is employed to reconstruct tomographic images. The detector gantry usually undergoes some type of scanning motion (wobbling, rotation, etc.) to achieve fine sampling of projection data. A recent trend of development in PET is to realize stationary PET systems with a reasonable spatial resolution (Derenzo et al.,1981; Burnham et al., 1984; Muehllehner and Karp, 1986). A totally stationary PET avoids the mechanical problems associated with accurate movement of the heavy assembly and is particularly advantageous in gated cardiac imaging or in fast dynamic studies. Elimination of scan motion along the detector plane allows one to scan the gantry quickly in the axial direction so that continuous three dimensional imaging can be achieved with a limited number of detector rings.
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© 1988 Springer Science+Business Media New York
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Tanaka, E. (1988). A Filtered Iterative Reconstruction Algorithm for Positron Emission Tomography. In: de Graaf, C.N., Viergever, M.A. (eds) Information Processing in Medical Imaging. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-7263-3_13
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DOI: https://doi.org/10.1007/978-1-4615-7263-3_13
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