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Attenuation map reconstruction from TOF PET data

  • US 9,600,910 B2
  • Filed: 01/08/2015
  • Issued: 03/21/2017
  • Est. Priority Date: 01/08/2014
  • Status: Active Grant
First Claim
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1. A method for reconstructing an attenuation map for a positron emission tomography (PET) image, the method comprising:

  • obtaining time-of-flight (TOF) PET data of the PET image;

    estimating the gradient of an attenuation sinogram; and

    determining, by a processor, the attenuation map using the estimated gradient of the attenuation sinogram by performing an algorithm,wherein performing the algorithm comprises using the following equation to determine the attenuation map;

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