NDLI: List-mode detector scatter estimation method with potential for real-time implementation in high resolution PET imaging

Content Provider	IEEE Xplore Digital Library
Author	Ortega Maynez, Leticia Kosters, Thomas Uhlendorf, Volkmar Wubbeling, Frank Schafers, Klaus Reader, Andrew J.
Copyright Year	2008
Description	Author affiliation: CEAS at the University of Manchester, UK (Ortega Maynez, Leticia) \|\| Institute for Pharmaceutical Sciences, ETH Zurich, Switzerland (Uhlendorf, Volkmar) \|\| Montreal Neurological Institute, McGill University, Quebec, H3A 2B4, Canada (Reader, Andrew J.) \|\| Mathematics and Computer Science at University of Münster, Germany (Kosters, Thomas)
Abstract	A novel method for the estimation of list-mode detector scatter is proposed, which can in principle be implemented in real-time during raw PET data acquisition. The method displaces the event detection positions within the list-mode data (according to a scatter kernel) to create new events which are distributed according to the background detector scatter component. The approach operates in detector data space, and in effect uses shift-variant kernels when considered in parallel projection-data space. Point sources located at different positions in the field-of-view (FOV) were used to assess the method, along with extensive phantom experiments. List-mode data for an $^{18}F$ rat bone scan (18 MBq) acquired with the quad-HIDAC PET scanner was reconstructed including the correction for the scatter and randoms background, demonstrating the method’s efficacy.
Starting Page	5277
Ending Page	5284
File Size	8981590
Page Count	8
File Format	PDF
ISBN	9781424427147
ISSN	10957863
DOI	10.1109/NSSMIC.2008.4774425
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-19
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Detectors Scattering Image resolution Positron emission tomography High-resolution imaging Event detection Kernel Data acquisition Imaging phantoms Bones
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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