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Chinese Journal of Interventional Radiology(Electronic Edition) ›› 2025, Vol. 13 ›› Issue (01): 54-61. doi: 10.3877/cma.j.issn.2095-5782.2025.01.011

• Imaging Diagnose • Previous Articles    

Ultrasound omics study of axillary lymph node metastatic burden in breast cancer

Gaofang Zhao1,(), Jing Chen2, Chunmei Wang1, Juan Wu3   

  1. 1. Department of Medical Ultrasound,Mianyang 404 Hospital,Sichuan Mianyang 621000
    2. Department of Radiology,Chongqing Southeast Hospital,Chongqing 401366
    3. Department of Medical Imaging,Qingbaijiang District People's Hospital,Sichuan Chengdu 610300; China
  • Received:2024-07-10 Online:2025-02-25 Published:2025-04-02
  • Contact: Gaofang Zhao

Abstract:

Objective

To investigate the ultrasound radiomics of axillary lymph node metastasis burden in breast cancer.

Methods

A total of 100 patients with breast cancer who received surgical treatment in Mianyang 404 hospital, Sichuan Province from November 2019 to January 2023 were selected.According to the postoperative pathological status of lymph node metastasis, the patients were divided into high lymph node metastasis burden (HNB) group (n=43) and low lymph node metastasis burden (LNB) group (n=57).The general clinical data, conventional ultrasound features and image omics features of the 2 groups were analyzed.The image omics features were extracted and the intra-group correlation coefficient (ICC) was used for consistency analysis.The mRMR and LASSO regression algorithms were used to screen the image omics features related to lymph node metastasis burden.Univariate Logistic regression analysis was used to select clinical factors and routine ultrasound features.The conventional ultrasound scoring model, imaging omics scoring model and joint prediction model were constructed and evaluated.

Results

Finally, 10 non-zero image omics features were screened out from ultrasonic images.There were significant differences in Radscore, conventional ultrasound score and combination-score between the LNB group and HNB group (P<0.05).There were statistically significant differences in the area under the receiver working characteristic curve(AUC) between conventional ultrasound model and imaging omics model and combined prediction model respectively (P<0.05), while there was no statistically significant difference in the AUC between imaging omics model and combined prediction model (P>0.05).The Hosmer-Lemeshow test showed that all models fit well (P>0.05).

Conclusion

The differential ability of the combined prediction model is better than that of conventional ultrasound model and imaging omics mode, suggesting that it is feasible for the combined imaging omics features and conventional ultrasound features to predict high axillary lymph node metastatic burden of breast cancer.

Key words: Breast cancer, Axillary lymph nodes, Metastatic load, Ultrasound imaging, Radiomics

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