高频超声对乳腺微小钙化的诊断价值

目的：评价高频超声对乳腺微小钙化灶的诊断价值。方法：回顾性分析79例乳腺钙化患者的术前超声表现,与钼靶X线片结果对照,对比分析乳腺良恶性钙化的声像图特点及其诊断价值。结果：65个乳腺微小钙化灶中,高频超声共显示出43个（66.1%）,其中对恶性病变的微小钙化灶显示率（83.8%）大于良性病变（31.2%,P〈0.05）。在声像图中,高频超声对低回声背景内的微小钙化灶的显示率（96.5%）大于正常回声背景内的微小钙化灶的显示率（15.3%,P〈0.05）。结论：高频超声可以显示乳腺微小钙化灶,对乳腺恶性病变和声像图中低回声背景内的微小钙化灶显示较好。当超声发现多发微小钙化时,多提示为恶性病变。

High frequency ultrasonography in evaluation of breast microcalcifications

Objective：To assess the value of high frequency ultrasonography in demonstrating the microcalcifications in breast.Methods：Breast calcifications in 84 patients were retrospectively reviewed and compared with mammography.The ultrasonographic characteristics of the breast benign ang malignant calcifications were analyzed for improving the differential diagnosis.Result：The detection rate of breast microcalcification on US was 82.6%,which was high about 92.7% in malignant microcalcification and only 61.5% in benign lesions.The sensitivity and specificity of Us in diagnosing malignant microcalcification was 80% and 84%,especially,the diagnostic accuracy rate of microcalcifications within masses was obvious higher than those without masses.Conclusion：High frenquency ultrasonography can detect microcalcifications and has a better visibility of microcalcifications within malignant lesions and hypoechoic lesions.The lesion is highly possible to be malignant if multiple microcalcifications are found.