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SIMIND Monte Carlo simulation of a single photon emission CT

In this study, we simulated a Siemens E.CAM SPECT system using SIMIND Monte Carlo program to acquire its experimental characterization in terms of energy resolution, sensitivity, spatial resolution and imaging of phantoms using (99m)Tc. The experimental and simulation data for SPECT imaging was acqu...

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Detalles Bibliográficos
Autores principales: Bahreyni Toossi, M. T., Islamian, J. Pirayesh, Momennezhad, M., Ljungberg, M., Naseri, S. H.
Formato: Texto
Lenguaje:English
Publicado: Medknow Publications 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2825003/
https://www.ncbi.nlm.nih.gov/pubmed/20177569
http://dx.doi.org/10.4103/0971-6203.55967
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author Bahreyni Toossi, M. T.
Islamian, J. Pirayesh
Momennezhad, M.
Ljungberg, M.
Naseri, S. H.
author_facet Bahreyni Toossi, M. T.
Islamian, J. Pirayesh
Momennezhad, M.
Ljungberg, M.
Naseri, S. H.
author_sort Bahreyni Toossi, M. T.
collection PubMed
description In this study, we simulated a Siemens E.CAM SPECT system using SIMIND Monte Carlo program to acquire its experimental characterization in terms of energy resolution, sensitivity, spatial resolution and imaging of phantoms using (99m)Tc. The experimental and simulation data for SPECT imaging was acquired from a point source and Jaszczak phantom. Verification of the simulation was done by comparing two sets of images and related data obtained from the actual and simulated systems. Image quality was assessed by comparing image contrast and resolution. Simulated and measured energy spectra (with or without a collimator) and spatial resolution from point sources in air were compared. The resulted energy spectra present similar peaks for the gamma energy of (99m)Tc at 140 KeV. FWHM for the simulation calculated to 14.01 KeV and 13.80 KeV for experimental data, corresponding to energy resolution of 10.01 and 9.86% compared to defined 9.9% for both systems, respectively. Sensitivities of the real and virtual gamma cameras were calculated to 85.11 and 85.39 cps/MBq, respectively. The energy spectra of both simulated and real gamma cameras were matched. Images obtained from Jaszczak phantom, experimentally and by simulation, showed similarity in contrast and resolution. SIMIND Monte Carlo could successfully simulate the Siemens E.CAM gamma camera. The results validate the use of the simulated system for further investigation, including modification, planning, and developing a SPECT system to improve the quality of images.
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spelling pubmed-28250032010-02-22 SIMIND Monte Carlo simulation of a single photon emission CT Bahreyni Toossi, M. T. Islamian, J. Pirayesh Momennezhad, M. Ljungberg, M. Naseri, S. H. J Med Phys Original Article In this study, we simulated a Siemens E.CAM SPECT system using SIMIND Monte Carlo program to acquire its experimental characterization in terms of energy resolution, sensitivity, spatial resolution and imaging of phantoms using (99m)Tc. The experimental and simulation data for SPECT imaging was acquired from a point source and Jaszczak phantom. Verification of the simulation was done by comparing two sets of images and related data obtained from the actual and simulated systems. Image quality was assessed by comparing image contrast and resolution. Simulated and measured energy spectra (with or without a collimator) and spatial resolution from point sources in air were compared. The resulted energy spectra present similar peaks for the gamma energy of (99m)Tc at 140 KeV. FWHM for the simulation calculated to 14.01 KeV and 13.80 KeV for experimental data, corresponding to energy resolution of 10.01 and 9.86% compared to defined 9.9% for both systems, respectively. Sensitivities of the real and virtual gamma cameras were calculated to 85.11 and 85.39 cps/MBq, respectively. The energy spectra of both simulated and real gamma cameras were matched. Images obtained from Jaszczak phantom, experimentally and by simulation, showed similarity in contrast and resolution. SIMIND Monte Carlo could successfully simulate the Siemens E.CAM gamma camera. The results validate the use of the simulated system for further investigation, including modification, planning, and developing a SPECT system to improve the quality of images. Medknow Publications 2010 /pmc/articles/PMC2825003/ /pubmed/20177569 http://dx.doi.org/10.4103/0971-6203.55967 Text en © Journal of Medical Physics http://creativecommons.org/licenses/by/2.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Bahreyni Toossi, M. T.
Islamian, J. Pirayesh
Momennezhad, M.
Ljungberg, M.
Naseri, S. H.
SIMIND Monte Carlo simulation of a single photon emission CT
title SIMIND Monte Carlo simulation of a single photon emission CT
title_full SIMIND Monte Carlo simulation of a single photon emission CT
title_fullStr SIMIND Monte Carlo simulation of a single photon emission CT
title_full_unstemmed SIMIND Monte Carlo simulation of a single photon emission CT
title_short SIMIND Monte Carlo simulation of a single photon emission CT
title_sort simind monte carlo simulation of a single photon emission ct
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2825003/
https://www.ncbi.nlm.nih.gov/pubmed/20177569
http://dx.doi.org/10.4103/0971-6203.55967
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