SMI联合UE鉴别甲状腺结节的价值

Value of SMI Combined with UE in Differential Diagnosis of Benign and Malignant Thyroid Nodules

本研究探讨超微血管显像(SMI)联合超声弹性成像(UE)鉴别甲状腺结节良恶性的价值。甲状腺结节患者均给予彩超、SMI及UE检查,分析诊断结果。80例患者共计122枚结节,恶性结节经SMI判断结节血流分型Ⅱ~Ⅲ级比例明显高于良性结节(P<0.05);恶性结节形态规则、内部囊性病变比例明显低于良性结节(P<0.05),而边界不清、纵横比≥1、低回声和内部钙化的比例明显高于良性结节(P<0.05);恶性结节应变率比值≥3.79、弹性评分4~5分的比例明显高于良性结节(P<0.05);SMI联合UE诊断甲状腺恶性结节的灵敏性和阴性预测值明显高于彩超联合UE诊断(P<0.05)。SMI联合UE有助于提高甲状腺结节良恶性鉴别能力,值得临床使用。

The purpose of this study was to investigate the value of superb micro-vascular imaging(SMI)combined with ultrasound elastography(UE)in the differential diagnosis of benign and malignant thyroid nodules.Ultrasound,SMI and UE examination were performed in patients with thyroid nodules and the diagnosis results were analyzed.Among the 122 nodules in 80 patients,The proportion of malignant nodules with blood flow classification of gradeⅡtoⅢby SMI was significantly higher than that of benign nodules(P<0.05).The proportion of malignant nodules with regular shape and internal cystic lesions was significantly lower than that of benign nodules(P<0.05),while the proportion of unclear boundary,aspect ratio≥1,hypoechoic and internal calcification was significantly higher than that of benign nodules(P<0.05).The strain rate ratio≥3.79,and the proportion of elastic score 4-5 of malignant nodules were significantly higher than those of benign nodules(P<0.05).The sensitivity and negative predictive value of SMI combined with UE in the diagnosis of thyroid malignant nodules were significantly higher than that of color ultrasound combined with UE(P<0.05).SMI combined with UE can improve the differentiation ability of benign and malignant thyroid nodules,which is worthy of clinical use.