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Effects of unconventional (Material) filters on the quality of images produced by three Gamma camera systems in Tc-99m SPECT

With nuclear medicine imaging technique, abnormalities in the human body can be detected at early stages and therefore an effective treatment planning is possible to make. Consequently, human lives can be saved and the health condition of patients can also be improved. However, this depends upon the...

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Main Authors: Sayed, Inayatullah Shah, Yee, Fong Shu, Mansor, Farhana, Mohd Zulkele, Nurul Farizan
Format: Article
Language:English
Published: Research Publish Journals 2016
Subjects:
QC Physics
Online Access:http://irep.iium.edu.my/51313/1/Effects_of_Unconventional_-_3388.pdf
http://irep.iium.edu.my/51313/
http://www.researchpublish.com
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spelling my.iium.irep.513132016-07-26T07:25:55Z http://irep.iium.edu.my/51313/ Effects of unconventional (Material) filters on the quality of images produced by three Gamma camera systems in Tc-99m SPECT Sayed, Inayatullah Shah Yee, Fong Shu Mansor, Farhana Mohd Zulkele, Nurul Farizan QC Physics With nuclear medicine imaging technique, abnormalities in the human body can be detected at early stages and therefore an effective treatment planning is possible to make. Consequently, human lives can be saved and the health condition of patients can also be improved. However, this depends upon the reliable diagnostic information that is obtained by an imaging system. Presence of scattered gamma photons leads to the inaccurate representation of counts in the image projection, thus the loss of image contrast and overall image degradation. This study uses the unconventional (material) filters i.e., Aluminum (Al) 0.1 & 0.2mm and Copper (Cu) 0.125 & 0.127mm thick flat sheets for the reduction of scattered gamma photons before they reach to the gamma camera detector. Quality of images reconstructed from the data acquired by three gamma camera systems (Toshiba GCA109A/HG, Philip ADAC Forte dual head and GE Infina dual head) installed at two different nuclear medicine departments was assessed. Data were acquired by imaging R. A. Carlson’s phantom with hot region and cardiac inserts and Tc-99m radionuclide was used. LEHR collimator was used and unconventional (material) filter(s) were mounted on the outer surface of collimator, separately. Symmetrical energy window (20% for Tc-99m) was selected. Images were investigated in terms of contour analysis and lesion detectability. Improvement was achieved in the parameters that were investigated for images obtained from the data with unconventional (material) filters, as compared to without material filtered data images. Thus, the technique may be tested further by using more complicated phantoms, such as; Heart/Thorax phantom. Moreover, results are suggestive, that the technique may be proved to be useful when applied in clinical studies. Research Publish Journals 2016 Article REM application/pdf en http://irep.iium.edu.my/51313/1/Effects_of_Unconventional_-_3388.pdf Sayed, Inayatullah Shah and Yee, Fong Shu and Mansor, Farhana and Mohd Zulkele, Nurul Farizan (2016) Effects of unconventional (Material) filters on the quality of images produced by three Gamma camera systems in Tc-99m SPECT. International Journal of Healthcare Sciences, 4 (1). pp. 203-209. ISSN 2348-5728 http://www.researchpublish.com
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic QC Physics
spellingShingle QC Physics
Sayed, Inayatullah Shah
Yee, Fong Shu
Mansor, Farhana
Mohd Zulkele, Nurul Farizan
Effects of unconventional (Material) filters on the quality of images produced by three Gamma camera systems in Tc-99m SPECT
description With nuclear medicine imaging technique, abnormalities in the human body can be detected at early stages and therefore an effective treatment planning is possible to make. Consequently, human lives can be saved and the health condition of patients can also be improved. However, this depends upon the reliable diagnostic information that is obtained by an imaging system. Presence of scattered gamma photons leads to the inaccurate representation of counts in the image projection, thus the loss of image contrast and overall image degradation. This study uses the unconventional (material) filters i.e., Aluminum (Al) 0.1 & 0.2mm and Copper (Cu) 0.125 & 0.127mm thick flat sheets for the reduction of scattered gamma photons before they reach to the gamma camera detector. Quality of images reconstructed from the data acquired by three gamma camera systems (Toshiba GCA109A/HG, Philip ADAC Forte dual head and GE Infina dual head) installed at two different nuclear medicine departments was assessed. Data were acquired by imaging R. A. Carlson’s phantom with hot region and cardiac inserts and Tc-99m radionuclide was used. LEHR collimator was used and unconventional (material) filter(s) were mounted on the outer surface of collimator, separately. Symmetrical energy window (20% for Tc-99m) was selected. Images were investigated in terms of contour analysis and lesion detectability. Improvement was achieved in the parameters that were investigated for images obtained from the data with unconventional (material) filters, as compared to without material filtered data images. Thus, the technique may be tested further by using more complicated phantoms, such as; Heart/Thorax phantom. Moreover, results are suggestive, that the technique may be proved to be useful when applied in clinical studies.
format Article
author Sayed, Inayatullah Shah
Yee, Fong Shu
Mansor, Farhana
Mohd Zulkele, Nurul Farizan
author_facet Sayed, Inayatullah Shah
Yee, Fong Shu
Mansor, Farhana
Mohd Zulkele, Nurul Farizan
author_sort Sayed, Inayatullah Shah
title Effects of unconventional (Material) filters on the quality of images produced by three Gamma camera systems in Tc-99m SPECT
title_short Effects of unconventional (Material) filters on the quality of images produced by three Gamma camera systems in Tc-99m SPECT
title_full Effects of unconventional (Material) filters on the quality of images produced by three Gamma camera systems in Tc-99m SPECT
title_fullStr Effects of unconventional (Material) filters on the quality of images produced by three Gamma camera systems in Tc-99m SPECT
title_full_unstemmed Effects of unconventional (Material) filters on the quality of images produced by three Gamma camera systems in Tc-99m SPECT
title_sort effects of unconventional (material) filters on the quality of images produced by three gamma camera systems in tc-99m spect
publisher Research Publish Journals
publishDate 2016
url http://irep.iium.edu.my/51313/1/Effects_of_Unconventional_-_3388.pdf
http://irep.iium.edu.my/51313/
http://www.researchpublish.com
_version_ 1643613926656573440
score 13.211869

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