Objective and subjective image quality measures of medical screen-film systems
Image quality of Lanex Regular/T Mat G and Lanex Regular/T Mat L screen-film systems was measured objectively by means of noise equivalent quanta (NEQ) and subjectively by means of receiver operating characteristic (ROC) curve analysis to study the link between the two measures. For the objective me...
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| Format: | Article |
| Language: | English |
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Malaysian Institute of Physics
2004
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| Online Access: | http://eprints.utm.my/2520/ http://eprints.utm.my/2520/1/Jurnal_Fizik_Malaysia_25_2004_15-18.pdf |
| _version_ | 1848890379657543680 |
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| author | Wan Hassan, Wan Muhamad Saridan Munajat, Yusof Sahibuddin, Shamsul |
| author_facet | Wan Hassan, Wan Muhamad Saridan Munajat, Yusof Sahibuddin, Shamsul |
| author_sort | Wan Hassan, Wan Muhamad Saridan |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | Image quality of Lanex Regular/T Mat G and Lanex Regular/T Mat L screen-film systems was measured objectively by means of noise equivalent quanta (NEQ) and subjectively by means of receiver operating characteristic (ROC) curve analysis to study the link between the two measures. For the objective measure, uniformly exposed radiographs and radiographs of bar pattern test object were used to determine the NEQ. For the subjective measure, detection of simulated lesions in posteroanterior anthropomorphic chest radiographs by an observer was analysed by the ROC methodology. Both measures show that a low frequency signal shows better on Lanex Regular/T Mat L, whilst a high frequency signal shows better on Lanex Regular/T Mat G. |
| first_indexed | 2025-11-15T20:41:08Z |
| format | Article |
| id | utm-2520 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:41:08Z |
| publishDate | 2004 |
| publisher | Malaysian Institute of Physics |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-25202010-06-01T03:03:27Z http://eprints.utm.my/2520/ Objective and subjective image quality measures of medical screen-film systems Wan Hassan, Wan Muhamad Saridan Munajat, Yusof Sahibuddin, Shamsul QC Physics Image quality of Lanex Regular/T Mat G and Lanex Regular/T Mat L screen-film systems was measured objectively by means of noise equivalent quanta (NEQ) and subjectively by means of receiver operating characteristic (ROC) curve analysis to study the link between the two measures. For the objective measure, uniformly exposed radiographs and radiographs of bar pattern test object were used to determine the NEQ. For the subjective measure, detection of simulated lesions in posteroanterior anthropomorphic chest radiographs by an observer was analysed by the ROC methodology. Both measures show that a low frequency signal shows better on Lanex Regular/T Mat L, whilst a high frequency signal shows better on Lanex Regular/T Mat G. Malaysian Institute of Physics 2004 Article PeerReviewed application/pdf en http://eprints.utm.my/2520/1/Jurnal_Fizik_Malaysia_25_2004_15-18.pdf Wan Hassan, Wan Muhamad Saridan and Munajat, Yusof and Sahibuddin, Shamsul (2004) Objective and subjective image quality measures of medical screen-film systems. Jurnal Fizik Malaysia, 25 . pp. 15-18. ISSN 0128-0333 |
| spellingShingle | QC Physics Wan Hassan, Wan Muhamad Saridan Munajat, Yusof Sahibuddin, Shamsul Objective and subjective image quality measures of medical screen-film systems |
| title | Objective and subjective image quality measures of medical screen-film systems |
| title_full | Objective and subjective image quality measures of medical screen-film systems |
| title_fullStr | Objective and subjective image quality measures of medical screen-film systems |
| title_full_unstemmed | Objective and subjective image quality measures of medical screen-film systems |
| title_short | Objective and subjective image quality measures of medical screen-film systems |
| title_sort | objective and subjective image quality measures of medical screen-film systems |
| topic | QC Physics |
| url | http://eprints.utm.my/2520/ http://eprints.utm.my/2520/1/Jurnal_Fizik_Malaysia_25_2004_15-18.pdf |