目的探讨高频超声在乳腺癌腋窝淋巴结转移诊断中的应用价值。
Objective To evaluate the diagnostic value of high frequency ultrasonography in axillary lymph nodes metastasis of breast carcinoma.
能谱带逐渐向高频方向转移，反映一个向上变薄的序列，即向上净沉积速率减小。
Gradual shifting of the spectral band toward high-frequency presents upward thickening succession, which means the upward net depositional rate decrease.
能谱带逐渐向高频方向转移，反映一个向上变薄的序列，即向上净沉积速率减小。
Gradual shifting of the spectral band toward high-frequency presents upward thickening succession, which means the upward net depositional rate decrease.
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