高频彩色多普勒超声仪对甲状腺良恶性结节的声像特征分析

Ultrasonographic Characteristics of Benign and Malignant Thyroid Nodules by High-Frequency Color Doppler Ultrasound

目的:探讨高频彩色多普勒超声诊断甲状腺良恶性结节的价值。方法:选取2019年1月~2021年1月收治的160例甲状腺结节患者,所有患者均接受常规超声与高频彩超扫描,根据手术病理结果分为恶性结节组与良性结节组;对比两组患者声像特征,分析普通彩超与高频彩超诊断甲状腺恶性结节的效能。结果:病理结果显示,160例甲状腺结节患者中恶性结节62例(恶性结节组),良性结节98例(良性结节组);恶性结节组结节边缘不清晰、有后方回声衰减、纵横比>1、无晕环、有微小钙化声影率高于良性结节组,差异均有统计学意义(P均<0.05)。高频彩超诊断甲状腺恶性结节的效能(AUC:0.893)高于普通彩超(AUC:0.842)。结论:高频彩色超声对甲状腺良恶性结节具有较高诊断价值,结节后方回声衰减等声像特征可为结节良恶性诊断提供参考依据。

Objective:To investigate the value of high-frequency color Doppler ultrasound in the diagnosis of benign and malignant thyroid nodules.Methods:160 patients with thyroid nodules from January 2019 to January 2021 were selected.All patients underwent conventional ultrasound and high-frequency color Doppler ultrasound.They were divided into malignant nodule group and benign nodule group according to the surgical and pathological results;The ultrasonographic characteristics of the two groups were compared,and the efficacy of ordinary color Doppler ultrasound and high-frequency color Doppler ultrasound in the diagnosis of thyroid malignant nodules was analyzed.Results:The pathological results showed that among the 160 patients with thyroid nodules,62 cases were malignant nodules(malignant nodules group)and 98 cases were benign nodules(benign nodules group);The sound shadow rate of malignant nodule group with unclear edge,posterior echo attenuation,aspect ratio>1,no halo ring and micro calcification was significantly higher than that of benign nodule group(all P<0.05).The efficiency of highfrequency color Doppler ultrasound in the diagnosis of thyroid malignant nodules(AUC:0.893)was higher than that of ordinary color Doppler ultrasound(AUC:0.842).Conclusion:High-frequency color ultrasound has high diagnostic value for benign and malignant thyroid nodules.The ultrasonic image characteristics such as echo attenuation behind the nodules can provide a reference basis for the diagnosis of benign and malignant thyroid nodules.