ERBB2 and breast cancer: Compared with the Con and Eva groups, the echo intensity of NT5E‐FITC‐NBs in the Sen group was the strongest in both B‐mode and CEUS, while the echo intensity of IgG‐FITC‐NBS was not statistically different among the three groups, which proved the effectiveness of NT5E‐FITC‐NBs for ultrasound imaging in the evaluation of cellular senescence induced by LAP in HER2+ breast cancer (Figure 6F–I).