【摘要】 目的探讨彩色多普勒超声血流显像(CDF)I中血流分级及动脉阻力指数在乳腺恶性肿瘤和良性疾病诊断中的应用价值.方法对245例乳腺疾病患者肿块内的CDFI血流丰富程度进行分级,并测量肿块内动脉阻力指数(R)I,并与术后肿块病理对比.结果恶性组118个肿块内血流分级0～I级占38.9%,Ⅱ～Ⅲ级占61.1%;良性组129个肿块内血流分级0～I级占77.5%,Ⅱ～Ⅲ级占22.5%,恶性组及良性组血流分级差异有统计学意义(P<0.01).恶性组肿块内RI中位数高于良性组,差异有统计学意义(P<0.05).以肿块内RI>0.7为界诊断乳腺恶性肿瘤,则敏感性为83.3%,特异性为77.8%.结论CDFI血流显像对乳腺疾病的鉴别诊断有重要的价值,CDFI显示肿块内血流分级为Ⅱ～Ⅲ级,肿块内高RI对提示乳腺恶性肿瘤有一定的价值.更多还原

【Abstract】 Objective To evaluate the application of CDFI’s blood flow imaging in diagnosing malignant breast tumor and benign breast diseases.Method Regarding the 245 cases of breast disease,we graded the blood flow in tumor,measured its artery resistance index(R)I and compared with the tumor pathology after operation.Results In the malignant group(118 cases),grade 0～Ⅰaccounted for 38.9%,grade Ⅱ～Ⅲ accounted for 61.1%;in benign group(129 cases),grade 0～Ⅰaccounted for 77.5%,grade Ⅱ～Ⅲaccounted for 22.5%.the discrepancy of blood flow grading between the malignant group and benign group had statistical significance(P<0.05).We used RI>0.7 as dividing line in diagnosing malignant breast tumor,the sensitivity was 82.8%,the specificity was 71.4%.Conclusion CDFI’s blood flow imaging has significant value in diagnosing breast diseases,either the grade Ⅱ～Ⅲof blood flowin tumor by CDFI or the high RI in the tumor are very important hints for the malignant breast tumor.更多还原