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PubMed · 9167431

Processor quality assurance using digital imaging.

A D Goren·S M Dunn·P F Van der Stelt
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Abstract

The purpose of this study was to develop and test a computer imaging method for assessing longitudinal processor variability. A technique called adaptive histogram equalization was used to test deviation in automatic processing when a test film is compared with a time-temperature processed standard at two different kVp's and film speeds. In a 14-day study we found that the density ranges for the standard film did not change, while the density range of the automatically processed films changed by a factor of two. These results suggest that if automatic processing is to be used for films taken as part of a longitudinal study-for example, subtraction-then processor variation can potentially lead to incorrect inference of bone gain or loss.

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Absorptiometry, PhotonHumansOptics and PhotonicsQuality Assurance, Health CareRadiographic Image EnhancementRadiography, DentalRadiography, Dental, DigitalSubtraction TechniqueX-Ray FilmX-Ray Intensifying ScreensJournal ArticleResearch Support, Non-U.S. Gov't

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A D Goren, S M Dunn, P F Van der Stelt. 1997. Processor quality assurance using digital imaging.. https://pubmed.ncbi.nlm.nih.gov/9167431/

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