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Proceedings Paper

Creation of new artificial calcification shadows for breast cancer and verification of effectiveness of CAD development technique that uses no actual cases
Author(s): K. Abe; H. Takeo; Y. Nagai; Y. Kuroki; S. Nawano
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Paper Abstract

To compensate for an insufficiency of the case images needed in the development of CAD (Computer-Aided Diagnosis), work is underway to create artificial case images by embedding tumors and other such lesions into lesion-free images. Previously, the authors have demonstrated the effectiveness of creating artificial case images for hepatic and breast tumors and utilizing them in CAD development. Thus far, however, when training data comprising 50% or more artificial cases is used in CAD development, the resulting discrimination performance on test data has tended to be somewhat inferior compared to when training data comprises only actual cases.

With the objectives of applying artificial case images to a greater range of sites and of using exclusively artificial cases to develop a high-performance discriminator, in this study, effectiveness verification was conducted that focused on breast cancer calcifications as a new target. Because the characteristics of calcification shadows differ substantially from those of the hepatic and breast cancer tumor shadows studied thus far, a new artificial image creation technique was developed. Artificial cases created using this technique were applied to CAD development. As a result, a discriminator trained with 100% artificial cases obtained detection performance equal to that of a discriminator trained with entirely actual cases.

Paper Details

Date Published: 6 July 2018
PDF: 7 pages
Proc. SPIE 10718, 14th International Workshop on Breast Imaging (IWBI 2018), 1071817 (6 July 2018); doi: 10.1117/12.2315790
Show Author Affiliations
K. Abe, Kanagawa Institute of Technology (Japan)
H. Takeo, Kanagawa Institute of Technology (Japan)
Y. Nagai, Higashisaitama National Hospital (Japan)
Y. Kuroki, Niimura Hospital (Japan)
S. Nawano, International Univ. of Health and Welfare, Mita Hospital (Japan)

Published in SPIE Proceedings Vol. 10718:
14th International Workshop on Breast Imaging (IWBI 2018)
Elizabeth A. Krupinski, Editor(s)

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