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PubMed · 8988199

Quality control phantom for digital chest radiography.

H G Chotas·C E Floyd·G A Johnson·C E Ravin
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Abstract

PURPOSE: To develop and test a chest phantom for routine quality control testing of digital radiography systems. MATERIALS AND METHODS: The phantom was constructed from sheets of copper, aluminum, and acrylic, which were cut and arranged to yield a radiographic projection resembling that of a human thorax. Regional test objects allowed quantitative assessment of optical density, contrast detail, and spatial resolution. Validation tests were performed to assess image stability in a stable imaging environment and sensitivity to changes in image quality when they occur. RESULTS: The phantom yielded consistent pseudoclinical images when used in a routine quality control program and facilitated detection of simulated problems that were induced in imaging system performance. CONCLUSION: The chest phantom enables quantitative, full-system testing of digital radiography system as they are used clinically for chest radiography.

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HumansPhantoms, ImagingQuality ControlRadiographic Image EnhancementRadiography, ThoracicJournal Article

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H G Chotas, C E Floyd, G A Johnson, C E Ravin. 1997. Quality control phantom for digital chest radiography.. https://doi.org/10.1148/radiology.202.1.8988199

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