27 December 1977 A Methodology For Comparison Of Quality Of Radiologic Images From Different Screen/Film Combinations Based On Radiologists' Subjective Judgments
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Proceedings Volume 0127, Application of Optical Instrumentation in Medicine VI; (1977) https://doi.org/10.1117/12.955909
Event: Application of Optical Instrumentation in Medicine VI, 1977, Boston, United States
Abstract
A method using radiologists' subjective judgments was developed to compare the quality of the diagnostic image information from two different screen/film combinations (Hi Plus/RPL versus Lanex/Ortho G). A sample of 148 comparison film pairs was obtained in the course of performing 74 urograms using the two film/screen combinations. Each film pair was evaluated by three radiologists, using a blind film reading format, in regard to: 1) anatomic diagnostic criteria visualization, 2) radiologic diagnostic certainty, 3) presence or absence of quantum mottle, and 4) prediction of which film of a pair was the rare earth screen/film combination. There was a significant difference favoring Hi Plus/RPL in perceived quality of visualization of anatomic criteria. However, the difference was more statistical than of practical importance. Diagnostic certainty differed only marginally and slightly favored the Hi Plus/RPL combination. No significant differences in perception of quantum mottle were attributable to either screen/film combination. Radiologists were able to correctly identify the screen/film combination a significant proportion of the time.
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John R. Thornbury, John R. Thornbury, Dennis G. Fryback, Dennis G. Fryback, Fred E. Patterson, Fred E. Patterson, Robert L. Chiavarini, Robert L. Chiavarini, } "A Methodology For Comparison Of Quality Of Radiologic Images From Different Screen/Film Combinations Based On Radiologists' Subjective Judgments", Proc. SPIE 0127, Application of Optical Instrumentation in Medicine VI, (27 December 1977); doi: 10.1117/12.955909; https://doi.org/10.1117/12.955909
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