Investigating the visual inspection subjectivity on the contrast-detail evaluation in digital mammography images

Maria A. Z. Sousa; Regina B. Medeiros; Homero Schiabel

doi:10.1117/12.2042904

11 March 2014 Investigating the visual inspection subjectivity on the contrast-detail evaluation in digital mammography images

Maria A. Z. Sousa, Regina B. Medeiros, Homero Schiabel

Author Affiliations +

Proceedings Volume 9037, Medical Imaging 2014: Image Perception, Observer Performance, and Technology Assessment; 903716 (2014) https://doi.org/10.1117/12.2042904
Event: SPIE Medical Imaging, 2014, San Diego, California, United States

Abstract

A major difficulty in the interpretation of mammographic images is the low contrast and, in the case of early detection of breast cancer, the reduced size of the features of malignancy on findings such as microcalcifications. Furthermore, image assessment is subject to significant reliance of the capacity of observation of the expert that will perform it, compromising the final diagnosis accuracy. Thinking about this aspect, this study evaluated the subjectivity of visual inspection to assess the contrast-detail in mammographic images. For this, we compared the human readings of images generated with the CDMAM phantom performed by four observers, enabling to determining a threshold of contrast visibility in each diameter disks present in the phantom. These thresholds were compared graphically and by statistical measures allowing us to build a strategy for use of contrast and detail (dimensions) as parameters of quality in mammography.

Citation Download Citation

Maria A. Z. Sousa, Regina B. Medeiros, and Homero Schiabel "Investigating the visual inspection subjectivity on the contrast-detail evaluation in digital mammography images", Proc. SPIE 9037, Medical Imaging 2014: Image Perception, Observer Performance, and Technology Assessment, 903716 (11 March 2014); https://doi.org/10.1117/12.2042904

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