ROLE OF CONVENTIONAL COLOR DUPLEX & POWER DOPPLER IN THE ASSESSMENT OF BENIGNICY OR MALIGNANCY OF BREAST MASSES
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In this study the role of Power Doppler US in the detection ofvascularity of solid breast masses and its predicitive power in differentiation of be nign versus malignant lesions was evaluated. In this study the analysis of mammographic, Gray scale US and Color/ Doppler US findings with histopathological results in 128 breast masses revealed there were 37 cancer, 57 fibroadenoma, and 34 other benign lesions. By using the pres ence of penetrating vessels as diagnostic criteria for malignancy, Power Doppler US demonstrated diagnostic sensitivity of 68% and specificity of 95% .As regard the resistive index measurement (Rl) we found that a Rl <0.8O is typical for benign breast condition, but also frequently occurs in malignant lesions. A Rl> or - 0.80 can be an indicator of malignancy with high specificity 196%) and sensitivity of f5696J. In conclusion Color and Power Doppler sonography improves the specificity of diagnosis of the majority of malignant nodules and allows a better definition of both local and regional staging.