Effect of different thickness of material filter on Tc-99m spectra and performance parameters of gamma camera

This study aimed to investigate the effects of material filter technique on Tc-99m spectra and performance parameters of Philip ADAC forte dual head gamma camera. Thickness of material filter was selected on the basis of percentage attenuation of various gamma ray energies by different thicknesses o...

Full description

Bibliographic Details
Main Authors:	Abdullah, Nazifah, Sohaimi, Norhanna, Shah, Sayed Inayatullah, Zakaria, Ahmad
Format:	Article
Language:	English English
Published:	Institute of Physics Publishing (UK) 2014
Subjects:	QC Physics
Online Access:	http://irep.iium.edu.my/39996/ http://irep.iium.edu.my/39996/ http://irep.iium.edu.my/39996/ http://irep.iium.edu.my/39996/1/Effect_of_different_thickness_of_material_filter.pdf http://irep.iium.edu.my/39996/3/39996_Effect%20of%20different%20thickness_SCOPUS.pdf

id	iium-39996
recordtype	eprints
spelling	iium-399962017-09-19T03:20:37Z http://irep.iium.edu.my/39996/ Effect of different thickness of material filter on Tc-99m spectra and performance parameters of gamma camera Abdullah, Nazifah Sohaimi, Norhanna Shah, Sayed Inayatullah Zakaria, Ahmad QC Physics This study aimed to investigate the effects of material filter technique on Tc-99m spectra and performance parameters of Philip ADAC forte dual head gamma camera. Thickness of material filter was selected on the basis of percentage attenuation of various gamma ray energies by different thicknesses of zinc material. A cylindrical source tank of NEMA single photon emission computed tomography (SPECT) Triple Line Source Phantom filled with water and Tc-99m radionuclide injected was used for spectra, uniformity and sensitivity measurements. Vinyl plastic tube was used as a line source for spatial resolution. Images for uniformity were reconstructed by filtered back projection method. Butterworth filter of order 5 and cut off frequency 0.35 cycles/cm was selected. Chang’s attenuation correction method was applied by selecting 0.13/cm linear attenuation coefficient. Count rate was decreased with material filter from the Compton region of Tc-99m energy spectrum, also from the photopeak region. Spatial resolution was improved. However, uniformity of tomographic image was equivocal, and system volume sensitivity was reduced by material filter. Material filter improved system’s spatial resolution. Therefore, the technique may be used for phantom studies to improve the image quality. Institute of Physics Publishing (UK) 2014 Article PeerReviewed application/pdf en http://irep.iium.edu.my/39996/1/Effect_of_different_thickness_of_material_filter.pdf application/pdf en http://irep.iium.edu.my/39996/3/39996_Effect%20of%20different%20thickness_SCOPUS.pdf Abdullah, Nazifah and Sohaimi, Norhanna and Shah, Sayed Inayatullah and Zakaria, Ahmad (2014) Effect of different thickness of material filter on Tc-99m spectra and performance parameters of gamma camera. Journal of Physics: Conference Series, 546 (1). pp. 1-6. ISSN 1742-6588 (P), 1742-6596 (O) http://iopscience.iop.org/ 10.1088/1742-6596/546/1/012007
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	QC Physics
spellingShingle	QC Physics Abdullah, Nazifah Sohaimi, Norhanna Shah, Sayed Inayatullah Zakaria, Ahmad Effect of different thickness of material filter on Tc-99m spectra and performance parameters of gamma camera
description	This study aimed to investigate the effects of material filter technique on Tc-99m spectra and performance parameters of Philip ADAC forte dual head gamma camera. Thickness of material filter was selected on the basis of percentage attenuation of various gamma ray energies by different thicknesses of zinc material. A cylindrical source tank of NEMA single photon emission computed tomography (SPECT) Triple Line Source Phantom filled with water and Tc-99m radionuclide injected was used for spectra, uniformity and sensitivity measurements. Vinyl plastic tube was used as a line source for spatial resolution. Images for uniformity were reconstructed by filtered back projection method. Butterworth filter of order 5 and cut off frequency 0.35 cycles/cm was selected. Chang’s attenuation correction method was applied by selecting 0.13/cm linear attenuation coefficient. Count rate was decreased with material filter from the Compton region of Tc-99m energy spectrum, also from the photopeak region. Spatial resolution was improved. However, uniformity of tomographic image was equivocal, and system volume sensitivity was reduced by material filter. Material filter improved system’s spatial resolution. Therefore, the technique may be used for phantom studies to improve the image quality.
format	Article
author	Abdullah, Nazifah Sohaimi, Norhanna Shah, Sayed Inayatullah Zakaria, Ahmad
author_facet	Abdullah, Nazifah Sohaimi, Norhanna Shah, Sayed Inayatullah Zakaria, Ahmad
author_sort	Abdullah, Nazifah
title	Effect of different thickness of material filter on Tc-99m spectra and performance parameters of gamma camera
title_short	Effect of different thickness of material filter on Tc-99m spectra and performance parameters of gamma camera
title_full	Effect of different thickness of material filter on Tc-99m spectra and performance parameters of gamma camera
title_fullStr	Effect of different thickness of material filter on Tc-99m spectra and performance parameters of gamma camera
title_full_unstemmed	Effect of different thickness of material filter on Tc-99m spectra and performance parameters of gamma camera
title_sort	effect of different thickness of material filter on tc-99m spectra and performance parameters of gamma camera
publisher	Institute of Physics Publishing (UK)
publishDate	2014
url	http://irep.iium.edu.my/39996/ http://irep.iium.edu.my/39996/ http://irep.iium.edu.my/39996/ http://irep.iium.edu.my/39996/1/Effect_of_different_thickness_of_material_filter.pdf http://irep.iium.edu.my/39996/3/39996_Effect%20of%20different%20thickness_SCOPUS.pdf
first_indexed	2023-09-18T20:57:24Z
last_indexed	2023-09-18T20:57:24Z
_version_	1777410396461727744

Effect of different thickness of material filter on Tc-99m spectra and performance parameters of gamma camera

Similar Items