【摘要】 目的探讨乳腺良恶性肿块的高频声像图及彩色多普勒血流特征,提高乳腺良恶性肿块鉴别诊断的准确性。方法87例乳腺肿块住院患者,首先观察二维高频声像图,然后用彩色多普勒血流成像(color doppler flow imaging,CDFI)观察、记录血流分级等,用频谱多普勒测量病灶内多处血管并记录阻力指数(resistant in-dex,RI),峰值流速(peak systolic velocity,PSV)等参数。结果乳腺良恶性肿块声像图鉴别以肿块边界特征及形态特征最重要,彩色多普勒显示乳腺癌内的血流较良性肿块明显丰富(P<0.05),乳腺癌的血管分布特征异常,频谱多普勒分析示肿块内血流峰值流速(PSV)、阻力指数(RI)在良恶性肿块间差异有显著性(P<0.05),恶性组高于良性组。更多还原

【Abstract】 [Objective] To evaluate the features of high frequency ultrasonography and color Doppler ultrasonography in benign and malignant breast tumor in order to promote the diagnostic accuracy. [Methods] Eighty-seven patients with breast tumors were screened with two-dimensional ultrasound and color doppler flow imaging (CDFI). The distribution of the tumor blood vessels was recorded and inspeded with pulsed wave doppler (PWD) to identify the highest peak systolic velocity(PSV) and resistant index(RI). [Results] The feature of tumor boundaries and shapes were of most importance for differentiation between benign and matignant breast tumor. There was significant difference in the grade of blood flow between the benign and malignant tumors. The characteristics of blood flow were revealed in the breast cancer. The RI and PSV were different between benign and malignant neoplasms (P <0.05) [Conclusion] High frequency ultrasonography with color doppler ultrasongraphy can be used for accurate differental diagnosis of breast tumor.更多还原