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Detectability of category 3 or higher microcalcifications on digital mammograms: a comparative study between 5-MP color and monochrome liquid crystal display monitors

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Abstract

This study explored the detectability of category 3 or higher microcalcifications using 5-MP color and monochrome monitors. Contrast detail mammography phantom with polymethyl methacrylate (PMMA) images were observed in color and monochrome by five radiographers, and the image quality figures (IQF) were calculated based on the gold disc locations identified. Five radiographers and two radiologists observed 200 mammograms from 100 patients (including 36 with microcalcifications) and rated the microcalcifications. The results were analyzed using area under the curve (AUC) and jackknife resampling. A paired t test was used for statistical analysis (p < 0.05). The mean IQF of color and monochrome monitors were 10.73 and 10.49 (30 mm PMMA, p = 0.653) and 8.47 and 8.74 (50 mm PMMA, p = 0.774), respectively. The mean AUC of color and monochrome monitors were 0.917 and 0.936 (p = 0.335), respectively, with windowing and magnification. The detectability of microcalcifications was not significantly different between the monitors.

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Acknowledgements

The authors would like to thank Akiko Hattori for technical assistance and Shogo Tokurei of Junshin Gakuen University for their hospitality, which enabled the results of this paper to be obtained. Finally, we would like to take this opportunity to thank Junji Morishita for years of advice.

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Authors and Affiliations

  1. Division of Radiology, Department of Medical Technology, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan

    Emi Awamoto, Shinichi Awamoto, Noriko Mizoguchi & Toyoyuki Kato

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  1. Emi Awamoto
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  2. Shinichi Awamoto
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Correspondence to Emi Awamoto.

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This article does not contain any studies involving animals.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the Institutional Review Board (IRB) and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. This study was approved by the ethics committee of Kyushu University Hospital. The requirement for consent was waived due to the retrospective nature of the study.

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Awamoto, E., Awamoto, S., Mizoguchi, N. et al. Detectability of category 3 or higher microcalcifications on digital mammograms: a comparative study between 5-MP color and monochrome liquid crystal display monitors. Radiol Phys Technol 15, 417–423 (2022). https://doi.org/10.1007/s12194-022-00679-x

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  • DOI: https://doi.org/10.1007/s12194-022-00679-x

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