A novel method of determining breast cancer risk using parenchymal textural analysis of mammography images on an Asian cohort

Tan, Maxine and Mariapun, Shivaani and Yip, Cheng Har and Ng, Kwan Hoong and Teo, Soo Hwang (2019) A novel method of determining breast cancer risk using parenchymal textural analysis of mammography images on an Asian cohort. Physics in Medicine & Biology, 64 (3). 035016. ISSN 0031-9155, DOI https://doi.org/10.1088/1361-6560/aafabd.

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Official URL: https://doi.org/10.1088/1361-6560/aafabd


Historically, breast cancer risk prediction models are based on mammographic density measures, which are dichotomous in nature and generally categorize each voxel or area of the breast parenchyma as 'dense' or 'not dense'. Using these conventional methods, the structural patterns or textural components of the breast tissue elements are not considered or ignored entirely. This study presents a novel method to predict breast cancer risk that combines new texture and mammographic density based image features. We performed a comprehensive study of the correlation of 944 new and conventional texture and mammographic density features with breast cancer risk on a cohort of Asian women. We studied 250 breast cancer cases and 250 controls matched at full-field digital mammography (FFDM) status for age, BMI and ethnicity. Stepwise regression analysis identified relevant features to be included in a linear discriminant analysis (LDA) classifier model, trained and tested using a leave-one-out based cross-validation method. The area under the receiver operating characteristic (AUC) and adjusted odds ratios (ORs) were used as the two performance assessment indices in our study. For the LDA trained classifier, the adjusted OR was 6.15 (95% confidence interval: 3.55-10.64) and for Volpara volumetric breast density, 1.10 (0.67-1.81). The AUC for the LDA trained classifier was 0.68 (0.64-0.73), compared to 0.52 (0.47-0.57) for Volpara volumetric breast density (p < 0.001). The regression analysis of OR values for the LDA classifier also showed a significant increase in slope (p < 0.02). Mammographic texture features derived from digital mammograms are important quantitative measures for breast cancer risk assessment based models. Parenchymal texture analysis has an important role for stratifying breast cancer risk in women, which can be implemented to routine breast cancer screening strategies. © 2019 Institute of Physics and Engineering in Medicine.

Item Type: Article
Uncontrolled Keywords: breast cancer; digital mammography; mammographic density; parenchymal texture analysis; risk prediction
Subjects: R Medicine
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Medicine
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 03 Jan 2020 04:18
Last Modified: 03 Jan 2020 04:18
URI: http://eprints.um.edu.my/id/eprint/23298

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