基于深度学习的多民族乳腺X线摄影诊断分析研究

doi:10.3969/j.issn.0258-8021.2025.05.004

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Abstract Breast cancer is a highly prevalent malignancy among women globally and exhibits significant clinical characteristic differences across ethnic groups. However, studies on the imaging features of breast cancer in different ethnic populations remain limited. This study included 366 breast cancer patients from multiple ethnic groups (153 Han, 134 Tibetan, and 79 Yi) and analyzed the clinical and imaging characteristics of each group, aiming to explore cross-ethnic differences and provide evidence for personalized diagnosis and treatment. Using clinical pathological data and mammography data, deep learning models based on ResNet networks of varying depths were developed for multi-ethnic classification and Ki-67 prediction. The results indicated that, compared to Han patients, Tibetan and Yi patients were diagnosed at younger ages (P<0.05) and exhibited significantly higher breast density. Tibetan patients also showed a higher proportion of HER2 positivity. In the multi-ethnic classification task, the ResNet34 model demonstrated the best classification performance, with a macro-average AUC of 0.880 on test data (Han: 0.911, Tibetan: 0.974, Yi: 0.742). Model visualization revealed that the model focused more on glandular regions for Tibetan patients, whereas it paid more attention to tumor regions for Han patients. In the multi-ethnic Ki-67 prediction task, the ethnicity-specific models (Han AUC=0.820, Tibetan AUC=0.842, Yi AUC=0.970) significantly outperformed the mixed-ethnic model (AUC=0.818), with the Yi model showing the most substantial improvement in predictive performance. In conclusion, significant differences existed in clinical and imaging features of the breast cancer patients across ethnic groups. The ethnicity-specific deep learning prediction models showed superior performance in assessing the Ki-67 proliferation index, offering valuable insights for the development of personalized diagnostic and treatment strategies for breast cancer patients from different ethnic backgrounds.

Key words： multiethnic breast cancer deep learning mammography

Received: 11 March 2025

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R318

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	Articles by authors
	Wang Yunfei
	Fan Ming
	Zhou Peng
	Li Lihua

Cite this article:

Wang Yunfei,Fan Ming,Zhou Peng, et al. Multi-Ethnic Mammographic Diagnosis Analysis Based on Deep Learning[J]. Chinese Journal of Biomedical Engineering, 2025, 44(5): 541-550.

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http://cjbme.csbme.org/EN/10.3969/j.issn.0258-8021.2025.05.004 OR http://cjbme.csbme.org/EN/Y2025/V44/I5/541

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