86例乳腺肿瘤彩色多普勒检查及其定性诊断价值

目的]探讨彩色多普勒超声在乳腺肿瘤中的诊断价值.方法]采用SIEMENS SONOLINE和GELOGICAL 7,探头频率为7.5MHz～10MHz,二维超声和彩色多普勒超声检测86例乳腺肿瘤.结果]良性肿瘤超声诊断符合率为78.9%(30/38),误诊率10.5%(4/38);恶性肿瘤超声诊断符合率为89.6%(43/48),误诊率为4.2%(2/48).超声未定性者占4.7%(4/46),未发现肿瘤者占3.5%(3/86).乳腺恶性肿瘤诊断敏感性为91.5%(43/47),特异性为93.8%(30/32).与乳腺良性肿瘤相比,恶性肿瘤无血流(0级)检出率为6.3%,显著低于良性肿瘤无血流检出率(50%,P＜0.01),而中等至多血流(Ⅱ级)检出率显著增高(P＜0.01).恶性肿瘤动脉阻力指数平均为0.79,良性肿瘤平均为0.62,两者相比具有显著性差异(P＜0.01).结论]彩色多普勒超声提高了对乳腺恶性肿瘤的定性诊断能力,对于指导临床治疗有重要意义.

Diagnostic Value of Color Doppler Sonography in 86 Cases with Mammary Tumor

Purpose]To evaluate diagnostic value of color Doppler sonography for mammary tumor. Methods]Eighty-six cases with mammary tumor were detected with SIEMENS and GELOGICAL 7 type ultrasound instrument (7.5~10MHz probe). Results] Consistent rate and misdiagnosis rate for benign tumors were 78.9%(30/38) and 10.5%(4/38) respectively, and those for malignant tumor were 89.6%(43/48) and 4.2%(2/48) respectively. 4.7% cases (4/86) were indistinguishable and 3.5% cases (3/86), undetectable with color Doppler sonography. Sensitivity and specificity of color Doppler ultrasound diagnosis were 91.5% (43/47) and 93.8%(30/32) for malignant. Flow-undetected rate decreased significantly in malignant tumors(6.3% vs 50%, P<0.01), and increased in middle and high flow compared with benign ones(P<0.01). Significant difference was observed for resistance index between malignancies and benign tumors(0.79 vs 0.62).Conclusion]Color Doppler sonography improves diagnosis for breast malignancy. It plays an important role in treatment guide.