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目的：观察彩色多普勒超声在诊断乳腺癌中的临床应用价值，并总结误诊原因。方法选取经手术后病理证实的乳腺癌患者75例，回顾性分析其二维声像图与彩色多普勒表现，并分析彩色多普勒血流频谱及相关阻力指数。结果彩超对乳腺癌作出定性诊断率较高，本组中超声诊断出63例，占比为84.0%，建议活检6例，占比为8.0%，性质待定4例，占比为5.3%，误诊2例，占比2.7%。结论彩超对乳腺癌具有较高的诊断价值，但对一些缺乏典型超声声像图特征的早期乳腺癌的诊断率并不高，需结合临床体征与穿刺活检等检查进行综合诊断，以提高早期诊断准确率。“,”Objective To observe the clinical value of color Doppler ultrasound in diagnosis of breast cancer,and to summarize the cause of misdiagnosis.Methods 75 cases of breast cancer confirmed by pathology were selected,and the color Doppler features were analyzed retrospectively,and color Doppler flow spectrum and cor elation resistance index were analyzed. Results 63 cases were diagnosed by ultrasonic,the rate of diagnosis was 84%,6 cases were biopsy(8%),2 cases were misdiagnosed as benign(2.7%)and 4 cases were undetermined(5.3%).Conclusion Color Doppler sonography in the diagnosis of breast cancer has a high diagnostic value,but for some lack of typical sonographic features of breast cancer early diagnosis rate is not high,with clinical signs and biopsy examination, in order to improve the early diagnostic accuracy rate.