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PubMed · 8307714

Effects of delayed processing on mammographic phantom object detection.

D A Gerhardt·E D Pisano·C Johnson·P Braeuning·K Dicke·D B Washburn·C Burns·K S Huang
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Abstract

OBJECTIVES: Delayed processing of films is a common occurrence in mobile mammography screening programs. The effects of such delayed processing on radiologists' detection of phantom test objects are investigated. METHODS: Twelve screen-film combinations were exposed using a phantom and developed after delays of 0, 1, 2, 3, 5, and 7 days. Films were scored by three board-certified radiologists specializing in mammography, based on visibility of calcifications, masses, fibrils, and line pairs. RESULTS: Variance analyses of mean scores indicate that, across screen-film combinations, there are no statistically significant decreases in object detection associated with delayed processing. The analyses do indicate, however, a statistically significant difference in scores unrelated to delay, attributable to the screen-film combination used. CONCLUSIONS: Delayed processing of mammography film does not lead to a decrease in the visibility of phantom test objects, despite large decreases in overall image optical density.

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Analysis of VarianceBreast NeoplasmsEvaluation Studies as TopicFemaleHumansMammographyMobile Health UnitsModels, StructuralObserver VariationRandom AllocationTime FactorsX-Ray Intensifying ScreensComparative StudyJournal ArticleResearch Support, U.S. Gov't, P.H.S.

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D A Gerhardt, E D Pisano, C Johnson, P Braeuning, K Dicke, D B Washburn, C Burns, K S Huang. 1993. Effects of delayed processing on mammographic phantom object detection.. https://doi.org/10.1097/00004424-199312000-00005

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