Use of an Effective Attenuation Coefficient Value and Material Filter Technique for Scatter Correction in Tc-99m SPECT

Accuracy in the diagnosis of disease in Tc-99m Single Photon Emission Computed Tomography is reduced due to the presence of scattered gamma photons in the image data. A range of scatter correction techniques exist, however, none is considered as the standard. The objective of this study is to apply...

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Main Authors:	Sayed, Inayatullah Shah, Muda, Siti Zubaidah
Format:	Article
Language:	English
Published:	MEACSE Publications 2016
Subjects:	QC Physics
Online Access:	http://irep.iium.edu.my/51395/ http://irep.iium.edu.my/51395/ http://irep.iium.edu.my/51395/1/Eefective_value_Al_0.3mm__corr.pdf

id	iium-51395
recordtype	eprints
spelling	iium-513952016-07-23T12:11:12Z http://irep.iium.edu.my/51395/ Use of an Effective Attenuation Coefficient Value and Material Filter Technique for Scatter Correction in Tc-99m SPECT Sayed, Inayatullah Shah Muda, Siti Zubaidah QC Physics Accuracy in the diagnosis of disease in Tc-99m Single Photon Emission Computed Tomography is reduced due to the presence of scattered gamma photons in the image data. A range of scatter correction techniques exist, however, none is considered as the standard. The objective of this study is to apply a flat sheet of Aluminum 0.3mm thick as an absorber for the removal of scattered gamma photons and compare the image quality with those images obtained by using effective attenuation coefficient value. Data were acquired with the gamma camera (Philip ADAC Forte dual head) installed with LEHR collimator. A cylindrical phantom with cold and hot regions insert was scanned. Tc-99m radioactive material was introduced into the phantom. Images were reconstructed by using filtered back projection method. Perceived image quality and contrast of cold and hot regions, whereas, count profile and standard deviation in the count density of uniform region was measured. Quantitative analysis of all image quality parameters investigated show fair improvement with material filter. In conclusion, 0.3mm thickness of aluminum material filter may have some advantage over the use of effective attenuation coefficient value for scatter compensation when applied by scanning other ECT phantoms using Tc-99m radionuclide. MEACSE Publications 2016-07 Article PeerReviewed application/pdf en http://irep.iium.edu.my/51395/1/Eefective_value_Al_0.3mm__corr.pdf Sayed, Inayatullah Shah and Muda, Siti Zubaidah (2016) Use of an Effective Attenuation Coefficient Value and Material Filter Technique for Scatter Correction in Tc-99m SPECT. International Journal of Computing Academic Research (IJCAR), 5 (3). pp. 163-169. ISSN 2305-9184 http://www.meacse.org/ijcar
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	QC Physics
spellingShingle	QC Physics Sayed, Inayatullah Shah Muda, Siti Zubaidah Use of an Effective Attenuation Coefficient Value and Material Filter Technique for Scatter Correction in Tc-99m SPECT
description	Accuracy in the diagnosis of disease in Tc-99m Single Photon Emission Computed Tomography is reduced due to the presence of scattered gamma photons in the image data. A range of scatter correction techniques exist, however, none is considered as the standard. The objective of this study is to apply a flat sheet of Aluminum 0.3mm thick as an absorber for the removal of scattered gamma photons and compare the image quality with those images obtained by using effective attenuation coefficient value. Data were acquired with the gamma camera (Philip ADAC Forte dual head) installed with LEHR collimator. A cylindrical phantom with cold and hot regions insert was scanned. Tc-99m radioactive material was introduced into the phantom. Images were reconstructed by using filtered back projection method. Perceived image quality and contrast of cold and hot regions, whereas, count profile and standard deviation in the count density of uniform region was measured. Quantitative analysis of all image quality parameters investigated show fair improvement with material filter. In conclusion, 0.3mm thickness of aluminum material filter may have some advantage over the use of effective attenuation coefficient value for scatter compensation when applied by scanning other ECT phantoms using Tc-99m radionuclide.
format	Article
author	Sayed, Inayatullah Shah Muda, Siti Zubaidah
author_facet	Sayed, Inayatullah Shah Muda, Siti Zubaidah
author_sort	Sayed, Inayatullah Shah
title	Use of an Effective Attenuation Coefficient Value and Material Filter Technique for Scatter Correction in Tc-99m SPECT
title_short	Use of an Effective Attenuation Coefficient Value and Material Filter Technique for Scatter Correction in Tc-99m SPECT
title_full	Use of an Effective Attenuation Coefficient Value and Material Filter Technique for Scatter Correction in Tc-99m SPECT
title_fullStr	Use of an Effective Attenuation Coefficient Value and Material Filter Technique for Scatter Correction in Tc-99m SPECT
title_full_unstemmed	Use of an Effective Attenuation Coefficient Value and Material Filter Technique for Scatter Correction in Tc-99m SPECT
title_sort	use of an effective attenuation coefficient value and material filter technique for scatter correction in tc-99m spect
publisher	MEACSE Publications
publishDate	2016
url	http://irep.iium.edu.my/51395/ http://irep.iium.edu.my/51395/ http://irep.iium.edu.my/51395/1/Eefective_value_Al_0.3mm__corr.pdf
first_indexed	2023-09-18T21:12:45Z
last_indexed	2023-09-18T21:12:45Z
_version_	1777411362097463296

Use of an Effective Attenuation Coefficient Value and Material Filter Technique for Scatter Correction in Tc-99m SPECT

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