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Cited by 181

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Image Reconstruction and Noise Evaluation in Photon Time-of-Flight Assisted Positron Emission Tomography

Tomitani, Takehiro·1981·IEEE Transactions on Nuclear Science
DOI 10.1109/tns.1981.4335769
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Abstract

In positron CT, the path difference of annhilation pair gamma rays can be measured by time-of-flight (TOF) difference of pair gamma rays. This TOF information gives us rough position information along a projection line and will reduce noise propagation in the reconstruction process. A reconstruction algorithm for TOF-positron computed tomography (PCT) based on the back-projection with 1-dimensional weight and 2-dimensional filtering is presented. Also a formula to evaluate the variance of the reconstructed image and the optimal back-projection function are presented. The advantage of TOF-PCT over conventional PCT was investigated in view of noise figure. An example of such noise figure evaluations for CsF and liquid Xenon scintillators is given.

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Metadata

Authors
Tomitani, T.
Venue
IEEE Transactions on Nuclear Science
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Published
1981
Volume
28
Issue
6
Pages
4581-4589
ISSN
0018-9499 (ISSN-L)
DOI
10.1109/tns.1981.4335769
OpenAlex
W2006429605
Cited by
181
References
0
FWCI
3.92
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Image Reconstruction and Noise Evaluation in Photon Time-of-Flight Assisted Positron Emission Tomography. https://app.cochat.ai/papers/10.1109/tns.1981.4335769
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Tomitani, T. (1981). Image Reconstruction and Noise Evaluation in Photon Time-of-Flight Assisted Positron Emission Tomography. IEEE Transactions on Nuclear Science. https://doi.org/10.1109/tns.1981.4335769

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