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PET scanner with photodetectors and wavelength shifting fibers

  • US 7,115,875 B1
  • Filed: 02/17/2004
  • Issued: 10/03/2006
  • Est. Priority Date: 02/17/2004
  • Status: Active Grant
First Claim
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1. An apparatus for estimating the location of an area on a scintillator block, the apparatus comprising:

  • photodetectors disposed to receive photons from a scintillator block of a PET scanner and configured to provide a measured photodetector signal indicative of a distribution of photons detected by the photodetectors;

    wavelength-shifting fibers disposed to receive photons from the scintillator block and configured to provide a measured fiber signal indicative of a distribution of photons received by the fibers; and

    a processor configured to estimate, on the basis of both the measured photodetector signal and the measured fiber signal, a location of a discrete area on a surface of the scintillator block from which the photons emerge.

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