【摘要】 目的 :探讨PDI对诊断乳腺良恶性肿块的特点及其优越性和局限性。方法 :对 48例乳腺肿块病人在同一超声切面上比较了CDFI及PDI所显示的血管分布状况。结果 :CDFI及PDI对乳腺良性肿块的血流显示率分别为 5 1.6 % (16 / 31)和 71.0 % (2 2 / 31) ;CDFI及PDI对乳腺恶性肿块的血流显示率分别为 76 .9% (2 0 / 2 6 )和 92 .3% (2 4/ 2 6 ) ;良恶性乳腺肿块的血流显示率比较 ,有显著性差异 (P <0 .0 0 1)。CDFI及PDI对乳腺肿块的血流检出率分别为 6 3 .2 % (36 / 5 7)和 80 .7% (4 6 / 5 7) ,两组比较 ,有显著性差异 (P <0 .0 5 )。结论 :PDI对乳腺良恶性肿块的诊断优于CDFI。更多还原

【Abstract】 Objective: To evaluate the advantages and limitations of power doppler imaging (PDI) in the diagnosis of benign and malignant breast tumors. Methods: The distribution of blood vessels of 48 cases of breast tumor were compared on the same section of ultrasound by color doppler flow imaging(CDFI)and PDI simultaneously.Results: The positive rate of blood flow in benign breast tumors shown by CDFI and PDI were 51.16% (16/31) and 71% (22/31) respectively, while that of the malignant ones were 76.9% (20/26) and 92.3% (24/26) respectively, showing significant difference (P<o.oo1). The total detectable rates of blood flow in all benign and malignant breast tumors examined by CDFI and PDI were 63.2% (36/57) and 80.7% (46/57), respectively significantly different too (P<0.05). Conclusion: The results above show PDI is superior to CDFI in the differential diagnosis of benign and malignant breast tumors.更多还原