Deep learning approach for breast cancer diagnosis

Breast cancer is one of the leading fatal disease worldwide with high risk control if early discovered. Conventional method for breast screening is x-ray mammography, which is known to be challenging for early detection of cancer lesions. The dense breast structure produced due to the compression process during imaging lead to difficulties to recognize small size abnormalities. Also, inter- and intra-variations of breast tissues lead to significant difficulties to achieve high diagnosis accuracy using hand-crafted features. Deep learning is an emerging machine learning technology that requires a relatively high computation power. Yet, it proved to be very effective in several difficult tasks that requires decision making at the level of human intelligence. In this paper, we develop a new network architecture inspired by the U-net structure that can be used for effective and early detection of breast cancer. Results indicate a high rate of sensitivity and specificity that indicate potential usefulness of the proposed approach in clinical use

A Decision-Making Tool for Early Detection of Breast Cancer on Mammographic Images

Breast cancer is one of the most dangerous types of cancer in the world among females. In the medical industry, the early detection of a breast abnormality in a mammogram can significantly decrease the death rate caused by breast cancer. Therefore, researchers directed their focus and efforts to find better solutions. Whereas researchers earlier used semi-automatic algorithms of machine learning, recently the attention is redirected toward deep learning algorithms that automatically extract features. Therefore, in the research study, two pre-trained Convolutional Neural Network models, VGG16 and ResNet50, have been used and applied on mammogram images to classify their abnormalities in terms of (1) the Benign Calcification, (2) the Malignant Calcification, (3) the Benign Mass, and (4) the Malignant Mass. The mammographic images of the CBIS-DDSM dataset are used. In the training phase, various experiments are performed on ROI images to decide on the best model configuration and fine-tuning depth. The experimental results showed that the VGG16 model provided a remarkable advancement over the ResNet50 model; the accuracy obtained was 80.0% in the first model whereas the second model could classify with a 60.0% accuracy almost randomly. Apart from accuracy, the other performance metrics used in this study are precision, recall, F1-Score and AUC. Our evaluation, based on these performance metrics, shows that accurate detection effect is obtained from the two networks with VGG16 being the most accurate. Finally, a decision support tool is developed which classifies the full mammogram images based on the fine-tuned VGG16 architecture into Benign Calcification, Malignant Calcification, Benign Mass, and Malignant Mass

Deep-Learning-Based Computer- Aided Systems for Breast Cancer Imaging: A Critical Review

[EN] This paper provides a critical review of the literature on deep learning applications in breast tumor diagnosis using ultrasound and mammography images. It also summarizes recent advances in computer-aided diagnosis/detection (CAD) systems, which make use of new deep learning methods to automatically recognize breast images and improve the accuracy of diagnoses made by radiologists. This review is based upon published literature in the past decade (January 2010-January 2020), where we obtained around 250 research articles, and after an eligibility process, 59 articles were presented in more detail. The main findings in the classification process revealed that new DL-CAD methods are useful and effective screening tools for breast cancer, thus reducing the need for manual feature extraction. The breast tumor research community can utilize this survey as a basis for their current and future studies.This project has been co-financed by the Spanish Government Grant PID2019-107790RB-C22, "Software development for a continuous PET crystal systems applied to breast cancer".Jiménez-Gaona, Y.; Rodríguez Álvarez, MJ.; Lakshminarayanan, V. (2020). Deep-Learning-Based Computer- Aided Systems for Breast Cancer Imaging: A Critical Review. Applied Sciences. 10(22):1-29. https://doi.org/10.3390/app10228298S1291022Jemal, A., Bray, F., Center, M. M., Ferlay, J., Ward, E., & Forman, D. (2011). Global cancer statistics. CA: A Cancer Journal for Clinicians, 61(2), 69-90. doi:10.3322/caac.20107Gao, F., Chia, K.-S., Ng, F.-C., Ng, E.-H., & Machin, D. (2002). Interval cancers following breast cancer screening in Singaporean women. International Journal of Cancer, 101(5), 475-479. doi:10.1002/ijc.10636Munir, K., Elahi, H., Ayub, A., Frezza, F., & Rizzi, A. (2019). 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Deep Learning Hyperparameter Optimization for Breast Mass Detection in Mammograms

Accurate breast cancer diagnosis through mammography has the potential to save millions of lives around the world. Deep learning (DL) methods have shown to be very effective for mass detection in mammograms. Additional improvements of current DL models will further improve the effectiveness of these methods. A critical issue in this context is how to pick the right hyperparameters for DL models. In this paper, we present GA-E2E, a new approach for tuning the hyperparameters of DL models for brest cancer detection using Genetic Algorithms (GAs). Our findings reveal that differences in parameter values can considerably alter the area under the curve (AUC), which is used to determine a classifier's performance