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Proceedings Paper

Effect of spatial behavior of scatter on 3D PET
Author(s): Meei-Ling Jan; Cheng-Chih Pei
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Paper 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.

Paper Details

Date Published: 2 May 1997
PDF: 12 pages
Proc. SPIE 3032, Medical Imaging 1997: Physics of Medical Imaging, (2 May 1997); doi: 10.1117/12.274005
Show Author Affiliations
Meei-Ling Jan, Institute of Nuclear Energy Research (Taiwan)
Cheng-Chih Pei, Institute of Nuclear Energy Research (Taiwan)


Published in SPIE Proceedings Vol. 3032:
Medical Imaging 1997: Physics of Medical Imaging
Richard L. Van Metter; Jacob Beutel, Editor(s)

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