NDLI: Experimental validation of a PET Monte-Carlo simulator

Content Provider	IEEE Xplore Digital Library
Author	Le Meunier, L. Mathy, F. Fagret, D.
Copyright Year	2004
Description	Author affiliation: LETI-CEA Recherche Technologique, Grenoble, France (Le Meunier, L.; Mathy, F.)
Abstract	As with most PET simulators, the widely used SimSET (a Simulation System for Emission Tomography) package still needs to be thoroughly validated. This paper presents the continuation of a comparison between simulations and experimental validation data obtained on two cylindrical SIEMENS tomographs: the ECAT HR+ and the ECAT ACCEL. The 2D and 3D sensitivities were simulated. The standard 2D collimator module did not give good results, so we described the 2D collimator inside the phantom. As the standard version of SIMSET does not describe block detectors, the sensitivity is corrected by the square of the ratio between the volume of the detector blocks and the volume of the full detector ring. The agreement is good for 2D and 3D as well for the HR+ tomograph, a little less satisfactory for the ACCEL tomograph. The standard SimSET computes the centroid of the photon interaction in the detector ring. As there is no Depth Of Interaction measurement on these machines, the spatial resolution was simulated with the hit in the detector projected onto the input side of the detector. Thus, with this simple correction, the spatial resolution is in correct agreement with experimental data, the discrepancy increases of course if quite far from the axis. Most simulations were done with and without variance reduction techniques. The agreement between them is good. Complementary comparisons are presented, such as energy spectra of a water cylinder phantom outside the Field Of View for the ACCEL machine.
Starting Page	3343
Ending Page	3346
File Size	560006
Page Count	4
File Format	PDF
ISBN	0780387007
ISSN	10823654
e-ISBN	0780387015
DOI	10.1109/NSSMIC.2004.1466407
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-10-16
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Positron emission tomography Detectors Collimators Spatial resolution Computational modeling Packaging Imaging phantoms Optical computing Monte Carlo methods Whole-body PET
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
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