超声在小乳腺癌中的诊断价值

目的探讨高频二维超声、彩色及能量多普勒血流成像（CDFI、PDI）对小乳腺癌的诊断价值。方法对86例小乳腺肿块（〈2．0cm）的二维超声声像图特征，CDFI、PDI等项指标进行对照分析。结果小乳腺癌与良性肿块在边界、后方回声情况、纵横比、有无钙化灶等四个方面均有统计学差异（P均〈0．05）。41例小乳腺癌中38例（92．7％）具有血流特征，其中穿入性血流23例（56．1％），25例伴有同侧腋窝淋巴结转移；45例良性病变中9例伴有同侧腋窝淋巴结反应性肿大。结论小乳腺癌的二维图像、CDFI、PDI在诊断小乳腺癌及转移性腋窝淋巴结方面均有特征性表现，其特征性表现对提高小乳腺癌的早期诊断准确率，具有较高的临床应用价值。

Diagnostic value of ultrasonography in small breast cancer

Objective To investigate the diagnostic value of two - dimensional high frequency uhrasound, color Doppler flow imaging （ CDFI ） and power Doppler Imaging （ PDI ） in diagnosis of small breast cancer. Methods The two-dimensional ultrasonic sonograms features, CDFI and PDI indexes of 86 cases （ 〈 2. 0 cm ） were compared and analyzed. Results There was significant difference between malignant and benign breast lesions in the appearance of the edge, rear echo, the longitudinal-transverse axis ratio （L/T） and the existence of calcification. 38 cases of small breast cancer had blood flow signals （38/41,92.7%）, and 23 cases had irruptive blood flow（23/41,56.1% ）, 25 cases had metastatic axillary lymph nodes on the same side. 9 of 45 benign lesions had tumescent axillary lymph nodes on the same side （9/45）. Conclusion There are special features of two - dimensional ultrasonography, CDFI and PDI in diagnosis of small breast cancer and metastatic axillary lymph nodes. It can improve the early diagnostic accuracy of small breast cancer, and also has high clinical application value.