NDLI: Analytic reconstruction for improved spatial resolution with the RatCAP PET tomograph

Content Provider	IEEE Xplore Digital Library
Author	Southekal, S.S. Vaska, P.
Copyright Year	2007
Description	Author affiliation: State Univ. of New York, Stony Brook (Southekal, S.S.)
Abstract	The RatCAP is a miniaturized, high resolution PET scanner worn by the subject on its head for conscious rat brain imaging. Image reconstruction by Filtered Back Projection (FBP) is complicated by a number of factors including, but not limited to gaps between detectors, the size of the field of view relative to the size of the scanner and the depth of the interaction in the detector crystal. Spatial resolution in PET is also degraded by random coincidences, photon scatter and intrinsic detector inefficiencies. Novel techniques to optimize spatial resolution that take advantage of our highly accurate Monte Carlo scanner model have been described in this paper. Initial results show an FWHM resolution of <1.6 mm at the center. Transaxial and radial resolution FWHM values will be reported for a point source placed at different radial distances from the center of the field of view (FOV).
Starting Page	64
Ending Page	66
File Size	1526907
Page Count	3
File Format	PDF
ISBN	9781424410323
DOI	10.1109/NEBC.2007.4413281
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-03-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Spatial resolution Positron emission tomography Detectors Image reconstruction Image resolution Head Brain High-resolution imaging Photonic crystals Degradation
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
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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