Abstract
Three factors which degrade positional information and the quantitative potential of single photon emission computed tomography (SPECT) are finite detector size, Compton scatter, and the detector point spread function (PSF). We focus here on the PSF, which is modelled as a gaussian whose standard deviation depends on the perpendicular distance between the detector and the point being imaged. Thus the PSF is spatially-variant (SVPSF). The PSF is spatially-invariant, of course, within the plane of the detector for a fixed image point-detector distance.
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© 1988 Springer Science+Business Media New York
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Zeeberg, B.R., Bice, A.N., Loncaric, S., Wagner, H.N. (1988). A Theoretically-Correct Algorithm to Compensate for a Three-Dimensional Spatially-Variant Point Spread Function in Spect Imaging. 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_15
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DOI: https://doi.org/10.1007/978-1-4615-7263-3_15
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