NDLI: Effect of noise in the probability matrix used for statistical reconstruction of PET data

Content Provider	IEEE Xplore Digital Library
Author	Rafecas, M. Boning, G. Pichler, B.J. Lorenz, F. Schwaiger, A. Ziegler, S.I.
Copyright Year	2003
Description	Author affiliation: Nuklearmedizinische Klinik und Poliklinik, Technische Univ. Munchen, Germany (Rafecas, M.)
Abstract	Iterative reconstruction algorithms require previous computation of the system probability matrix P. This matrix is usually estimated through approximated calculations. The approach employed in this work is, however based on Monte Carlo simulations. This technique allows to describe P more accurately. Nevertheless. the amount of simulated events may limit the statistical quality of P. thus affecting the reconstructed image. The goal of this study was to quantify this effect for OSEM and PWLS applied to the small animal PET system MADPFT (O = 86 mm). The results showed that PWLS is more sensitive to the inaccurate description of P than OSEM. A mean relative error for P below /spl ap/ 40% (obtained from simulations with more than /spl ap/ 6,000 mean detected counts per detector pair) in combination with OSEM guaranteed a good image quality for 1 mm/sup 2/ pixels. For PWLS, however, a slight decrease of the mean relative error in the range 20%-30% might strongly affected the image properties. Simulations with more that /spl ap/ 45,000 mean detected coincidences per detector pair slightly improved the accuracy of P.
Starting Page	1787
Ending Page	1791
File Size	572832
Page Count	5
File Format	PDF
ISBN	0780376366
DOI	10.1109/NSSMIC.2002.1239669
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-11-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Probability Positron emission tomography Image reconstruction Detectors Reconstruction algorithms Computational modeling Discrete event simulation Animals Image quality Pixel
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Effect of noise in the probability matrix used for statistical reconstruction of PET data

Optimization of image reconstruction for the RatCAP (PET) tomograph: An analysis of the statistical quality of the system response matrix

Accurate attenuation modeling of rebinned 3D PET data

ISWLS: Novel Algorithm for Image Reconstruction in PET

Quasi pseudo-inverse reconstruction for rotating PET scanners

A Monte-Carlo study of image reconstruction for PET

A simulation study of image reconstruction for PET

Fast reconstruction of 3-D PET data with accurate statistical modeling

List mode reconstruction for PET with motion compensation: a simulation study

Effect of noise in the probability matrix used for statistical reconstruction of PET data

Similar Documents

Effect of noise in the probability matrix used for statistical reconstruction of PET data

Optimization of image reconstruction for the RatCAP (PET) tomograph: An analysis of the statistical quality of the system response matrix

Accurate attenuation modeling of rebinned 3D PET data

ISWLS: Novel Algorithm for Image Reconstruction in PET

Quasi pseudo-inverse reconstruction for rotating PET scanners

A Monte-Carlo study of image reconstruction for PET

A simulation study of image reconstruction for PET

Fast reconstruction of 3-D PET data with accurate statistical modeling

List mode reconstruction for PET with motion compensation: a simulation study

Effect of noise in the probability matrix used for statistical reconstruction of PET data