Evaluation of the influence of exposure index on image quality and radiation dose
Introduction: The introduction of digital radiography has led to a significant problem with dose creep. To address the problem with dose creep, manufacturers have established a set of exposure indicators (EI) as a feedback mechanism to safeguard against overexposure. EI is the measure of incident ex...
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Iranian Association of Medical Physicists (IAMP)
2019
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| Online Access: | http://irep.iium.edu.my/68316/ http://irep.iium.edu.my/68316/ http://irep.iium.edu.my/68316/ http://irep.iium.edu.my/68316/7/68316%20Evaluation%20of%20the%20Influence%20of%20Exposure%20Index%20on%20Image%20Quality.pdf |
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iium-683162019-07-09T07:39:32Z http://irep.iium.edu.my/68316/ Evaluation of the influence of exposure index on image quality and radiation dose Moey, Soo Foon Mohamad Asri, Fatin Naimah QC Physics R Medicine (General) Introduction: The introduction of digital radiography has led to a significant problem with dose creep. To address the problem with dose creep, manufacturers have established a set of exposure indicators (EI) as a feedback mechanism to safeguard against overexposure. EI is the measure of incident exposure to the detector that is directly proportional to the signal-to-noise ratio and can be related to image quality. The aim of this study was to evaluate the influence of EI on image quality and radiation dose for posterioranterior (PA) chest radiography. Materials & Methods: This study was conducted in three phases; pre, experimental and post- optimization. A total of 60 patients that could fulfill the inclusion and exclusion clauses for PA chest radiography were recruited. The radiographic technical parameters, dose area product and EI were recorded. Radiographs were printed and the images were evaluated by two recruited radiologists using the modified evaluation criteria established by the Commission of European Communities, 1996. Results: Statistical analysis using Spearman’s Rho Correlation showed insignificant result between EI and image quality for PA chest radiography (p>0.05), conversely, there was a significant relationship between EI and radiation dose (p<0.05). Conclusion: EI can be used as an indirect measure of image quality and radiation dose. EI does not directly determine image quality as radiographic technique and parameters used can affect image quality. However, EI can be used as an indicative measure of radiation dose but it cannot provide an accurate measurement of radiation received by the patient. Iranian Association of Medical Physicists (IAMP) 2019-07 Article PeerReviewed application/pdf en http://irep.iium.edu.my/68316/7/68316%20Evaluation%20of%20the%20Influence%20of%20Exposure%20Index%20on%20Image%20Quality.pdf Moey, Soo Foon and Mohamad Asri, Fatin Naimah (2019) Evaluation of the influence of exposure index on image quality and radiation dose. Iranian Journal of Medical Physics, 16 (4 (July-August)). pp. 294-299. E-ISSN 2345-3672 http://ijmp.mums.ac.ir/article_11901.html 10.22038/IJMP.2018.33156.1404 |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
International Islamic University Malaysia |
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IIUM Repository |
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Online Access |
| language |
English |
| topic |
QC Physics R Medicine (General) |
| spellingShingle |
QC Physics R Medicine (General) Moey, Soo Foon Mohamad Asri, Fatin Naimah Evaluation of the influence of exposure index on image quality and radiation dose |
| description |
Introduction: The introduction of digital radiography has led to a significant problem with dose creep. To address the problem with dose creep, manufacturers have established a set of exposure indicators (EI) as a feedback mechanism to safeguard against overexposure. EI is the measure of incident exposure to the detector that is directly proportional to the signal-to-noise ratio and can be related to image quality. The aim of this study was to evaluate the influence of EI on image quality and radiation dose for posterioranterior (PA) chest radiography. Materials & Methods: This study was conducted in three phases; pre, experimental and post- optimization. A total of 60 patients that could fulfill the inclusion and exclusion clauses for PA chest radiography were recruited. The radiographic technical parameters, dose area product and EI were recorded. Radiographs were printed and the images were evaluated by two recruited radiologists using the modified evaluation criteria established by the Commission of European Communities, 1996. Results: Statistical analysis using Spearman’s Rho Correlation showed insignificant result between EI and image quality for PA chest radiography (p>0.05), conversely, there was a significant relationship between EI and radiation dose (p<0.05). Conclusion: EI can be used as an indirect measure of image quality and radiation dose. EI does not directly determine image quality as radiographic technique and parameters used can affect image quality. However, EI can be used as an indicative measure of radiation dose but it cannot provide an accurate measurement of radiation received by the patient. |
| format |
Article |
| author |
Moey, Soo Foon Mohamad Asri, Fatin Naimah |
| author_facet |
Moey, Soo Foon Mohamad Asri, Fatin Naimah |
| author_sort |
Moey, Soo Foon |
| title |
Evaluation of the influence of exposure index on image quality and radiation dose |
| title_short |
Evaluation of the influence of exposure index on image quality and radiation dose |
| title_full |
Evaluation of the influence of exposure index on image quality and radiation dose |
| title_fullStr |
Evaluation of the influence of exposure index on image quality and radiation dose |
| title_full_unstemmed |
Evaluation of the influence of exposure index on image quality and radiation dose |
| title_sort |
evaluation of the influence of exposure index on image quality and radiation dose |
| publisher |
Iranian Association of Medical Physicists (IAMP) |
| publishDate |
2019 |
| url |
http://irep.iium.edu.my/68316/ http://irep.iium.edu.my/68316/ http://irep.iium.edu.my/68316/ http://irep.iium.edu.my/68316/7/68316%20Evaluation%20of%20the%20Influence%20of%20Exposure%20Index%20on%20Image%20Quality.pdf |
| first_indexed |
2023-09-18T21:36:57Z |
| last_indexed |
2023-09-18T21:36:57Z |
| _version_ |
1777412884176830464 |