High-frequency ultrasonography and color Doppler flow imaging in diagnosis of breast tumor:a report of 171 cases

Objective: To explore the value of high frequency ultrasonography (HFU) and color Doppler flow imaging (CDFI) in diagnozing the breast tumor.Methods: A total of 171 patients were diagnosed by HFU and CDFI.Two-dimensional ultrasound was used to observe the size,margin and blood vessel distribution of the tumor;color Doppler was adopted to measure the degree of the blood flow signal,the peak systolic velocity and the resistance index.The results were compared with those by pathological examination after operation.Results: Compared with the pathological results,the accuracy of preoperative HFU reached 95.5% (71/82 benign and 85/89 malignant) in diagnosing the breast tumor.The misdiagnosis rate was 7.3% (6/82) and 4.5% (4/82) in the benign and malignant breast tumor,respectively.Benign and malignant tumors had evident discrepancy at the border,shape,internal echo,side echo,rear echo,blood vessel distribution and hemodynamics (P<0.01).Conclusions: HFU and CDFI can determine the size,number and location of the breast tumor.CDFI may evaluate the 2D images and hemodynamics parameters,which are of great value in making correct diagnosis of benign or malignant breast tumors.