Structural Similarity Index Algorithm For Accurate Mammogram Registration | 38561
Journal of Applied & Computational Mathematics
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American Cancer Society documented that around 240,000 women are diagnosed with cancer in the United States during
2015 with morality rate of around 40,000. 1 out of 8 women would develop breast cancer during her life time. Unfortunately,
breast cancer is a symptomatic disease. Screening mammography is a widely used procedure in developed countries to fight
against breast cancer. In this procedure, women within a certain age are recommended to perform screening mammography
regularly to search for abnormalities such as masses, calcifications, and architectural distortions. One challenge is detecting
subtle malignant abnormalities in consecutive, temporal, images acquired for the same patient over time. Currently, a radiologist
is visually comparing temporal mammograms to search for these subtle changes. This is a time consuming procedure. Also,
limitations of human visual systems have led to misinterpreting the temporal mammograms and hence produce false negative
and false positive rates. One method to increase the accuracy of temporal mammogram registration is through applying
arithmetic algorithms in machines to detect these subtle changes. In this research, structural similarity index measurement
is applied to register temporal mammograms for that purpose. Factors such as image rotation and translation are taken into
consideration in this algorithm. The algorithm is compared with two well-known algorithms, i.e., Mutual Information (MI)
and Correlation Coefficients (CORR). Based on the radiologist outcome, our algorithm provided better results compared with
the other two algorithms. Using metric measurements, SSIM was found to reduce the error rate by 59.3% compared with 61.1%
and 63.2% for CORR and MI, respectively.
Huda Al-Ghaib is an Assistant Professor. She received her Undergraduate degree in Computer Engineering from University of Technology, Baghdad, Iraq, 2006. She is a recipient of Fulbright Scholar in 2009. She earned her Masters’ and PhD degrees in Electrical Engineering in 2011 and 2015, respectively, from University of Alabama in Huntsville (UAH). During her graduate studies, she was awarded an Outstanding Graduate Student in Engineering in 2014. Her research interests are in the area of pattern recognition and data mining with applications in medical imaging. She is the author/co-author of more than 10 journals and conference articles. She is a Member of IEEE.