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Abstract #4592

Whole-tumor histogram models based on quantitative maps from SyMRI for predicting axillary lymph node status in invasive ductal breast cancer

Fang Zeng1, Zheting Yang1, Xiaoxue Tang1, Lin Lin1, Pu-Yeh Wu2, and Yunjing Xue1
1Department of Radiology, Fujian Medical University Union Hospital, Fuzhou, Fujian, China, 2GE Healthcare, Beijing, China

Synopsis

Keywords: Breast, Breast

Motivation: Breast cancer is closely associated with ALN status, influencing prognosis. Sentinel lymph node (SLN) biopsy, a common ALN staging method, has limitations.

Goal(s): This study aimed to explore a non-invasive predictive approach for ALN status in IDC patients using SyMRI images and histogram analysis.

Approach: We included 212 patients, and compared the performance of SyMRI histogram models in differentiating N0 and N+ groups (further divided into N1 and N2-3).

Results: Combining quantitative map features with clinical data achieved the highest diagnostic accuracy. Additionally, specific histogram features were found to differ significantly between N1 and N2-3 groups. Conventional parameters were less discriminative.

Impact: We demonstrated efficacy of histogram analysis of SyMRI as a non-invasive method for predicting ALN status. Model combining SyMRI quantitative maps and clinical features yielded satisfactory performance, highlighting the potential of our proposed model in ALN management.

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