Effect of spatial behavior of scatter on 3D PET

Meei-Ling Jan; Cheng-Chih Pei

doi:10.1117/12.274005

2 May 1997 Effect of spatial behavior of scatter on 3D PET

Meei-Ling Jan, Cheng-Chih Pei

Proceedings Volume 3032, Medical Imaging 1997: Physics of Medical Imaging; (1997) https://doi.org/10.1117/12.274005
Event: Medical Imaging 1997, 1997, Newport Beach, CA, United States

Abstract

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.

Citation Download Citation

Meei-Ling Jan and Cheng-Chih Pei "Effect of spatial behavior of scatter on 3D PET", Proc. SPIE 3032, Medical Imaging 1997: Physics of Medical Imaging, (2 May 1997); https://doi.org/10.1117/12.274005

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