彩超在鉴别诊断甲状腺肿块中的应用

目的对照甲状腺肿块的声像图特征及病理结果,寻找超声诊断一般规律,以便对其进行鉴别诊断。方法应用高频彩色超声对甲状腺大小、形态、回声及血流进行观查。结果彩超对各型甲状腺肿瘤均有较特征的声像图表现,彩色多普勒血流显像（CDFI）示良性肿瘤周边有环状低速血流信号,恶性肿瘤内部较丰富的高速血流信号分布。对照病理检查结果,良、恶性肿瘤超声诊断符合率分别为95%和75%。结论彩超鉴别甲状腺良恶性肿瘤有较高临床应用价值。

The Application of Color Ultrasonography in the Differential Diagnosis of Thyroid Tumor

Objective To review and compare the characteristics of ultrasonographic appearance and pathological result of thyroid masses the general rule of ultrasonic diagnosis,so as to provide evidence for its differential diagnosis.Methods The size,morphology, echo and blood flow of thyroid were detected by using high frequency color Doppler.Results Color ultrasonic has characteristic sonographic appearance to all kinds of goiter.Color Doppler flow imaging（CDFI） shows that there is a circular low-speed blood flow around the benign tumor,and an abundant high speed blood flow inside the malignant tumor.The ultrasonic diagnose accurate rate of the innate or malignant tumor is 95% and 75%,compared with the pathological examination rersults.Conclusion These results suggest that color Doppler has high value in clinical applications for the differential diagnosis of benign and malignant tumor of thyroid.