Effect of spatial behavior of scatter on 3D PET

Meei Ling Jan*, Cheng Chih Pei

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


In 3D positron emission tomography (PET), all the coincidence events can be collected to increase the sensitivity of signal detection. However, the sensitivity increase results in the enlargement of scatter fraction which degrades image quality. For improving the accuracy of PET images, an effective scatter correction technique is necessary. In this paper, Monte Carlo simulations were done according to the system configuration of the animal PET design at the Institute of Nuclear Energy Research. From the simulation data we could understand what the scatter effect of our planned system will be. The convolution-subtraction method was chosen to correct for the scatter. A new approach to determine the scatter kernel function which could do better job on scatter correction will be presented.

Original languageEnglish
Pages (from-to)376-387
Number of pages12
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1997
Externally publishedYes
EventMedical Imaging 1997: Physics of Medical Imaging - Newport Beach, CA, United States
Duration: 23 02 199723 02 1997


  • Convolution-subtraction scatter correction
  • Positron emission tomography
  • Scatter correction


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