Improving mass detection performance by use of 3D difference filter in a whole breast ultrasonography screening system

Yuji Ikedo; Daisuke Fukuoka; Takeshi Hara; Hiroshi Fujita; Etsuo Takada M.D.; Tokiko Endo M.D.; Takako Morita

doi:10.1117/12.769301

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17 March 2008 Improving mass detection performance by use of 3D difference filter in a whole breast ultrasonography screening system

Yuji Ikedo, Daisuke Fukuoka, Takeshi Hara, Hiroshi Fujita, Etsuo Takada M.D., Tokiko Endo M.D., Takako Morita

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Proceedings Volume 6915, Medical Imaging 2008: Computer-Aided Diagnosis; 691523 (2008) https://doi.org/10.1117/12.769301
Event: Medical Imaging, 2008, San Diego, California, United States

Abstract

Ultrasonography is one of the most important methods for breast cancer screening in Japan. Several mechanical whole breast ultrasound (US) scanners have been developed for mass screening. We have reported a computer-aided detection (CAD) scheme for the detection of masses in whole breast US images. In this study, the method of detecting mass candidates and the method of reducing false positives (FPs) were improved in order to enhance the performance of this scheme. A 3D difference (3DD) filter was newly developed to extract low-intensity regions. The 3DD filter is defined as the difference of pixel values between the current pixel value and the mean pixel value of 17 neighboring pixels. Low-intensity regions were efficiently extracted by use of 3DD filter values, and FPs were reduced using a FP reduction method employing the rule-based technique and quadratic discriminant analysis with the filter values. The performance of our previous and improved CAD schemes indicated a sensitivity of 80.0% with 16.8 FPs and 9.5 FPs per breast, respectively. The FPs of the improved scheme were reduced by 44% as compared to the previous scheme. The 3DD filter was useful for the detection of masses in whole breast US images.

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Yuji Ikedo, Daisuke Fukuoka, Takeshi Hara, Hiroshi Fujita, Etsuo Takada M.D., Tokiko Endo M.D., and Takako Morita "Improving mass detection performance by use of 3D difference filter in a whole breast ultrasonography screening system", Proc. SPIE 6915, Medical Imaging 2008: Computer-Aided Diagnosis, 691523 (17 March 2008); https://doi.org/10.1117/12.769301

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