Effect of randoms on signal-to-noise ratio in TOF PET

  title={Effect of randoms on signal-to-noise ratio in TOF PET},
  author={Maurizio Conti},
  journal={IEEE Transactions on Nuclear Science},
Time-of-flight (TOF) positron emission tomography (PET) has the potential to improve signal-to-noise ratio (SNR). In the literature, this improvement has been estimated as proportional to the square root of D//spl Delta/x, where D is the radial dimension of the object to be imaged, and /spl Delta/x is the spatial uncertainty associated with the time resolution of the scanner. This estimate does not include the effect of the randoms. In this paper we discuss the role of random coincidence in TOF… CONTINUE READING


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