目的:探讨超声造影对不同大小的甲状腺结节良恶性的诊断价值.方法:选取80例(106个)甲状腺结节患者,对其进行超声造影检查.结节大小≤1 cm的患者为A组,结节大小>1 cm的患者为B组.观察并比较每组结节的增强特征.结果:①A组患者的结节,其增强模式、增强程度的差异均无统计学意义(P>0.05),而增强边界的差异具有统计学意义(χ2=20.387,P<0.05);B组患者的结节,其增强模式、增强程度及增强边界的差异均具有统计学意义(P<0.05);②B组中,不均匀低增强诊断恶性结节、环状增强诊断良性结节,其临床价值均较高,具有临床意义.结论:超声造影在>1 cm结节的良恶性鉴别诊断中具有较高的临床价值,在<1 cm结节中,超声造影具有多样化表现.%Objective: To evaluate the diagnostic value of contrast-enhanced ultrasonography in benign and malignant thyroid nodules of different sizes.Methods: 80 patients (106) with thyroid nodules were examined by contrast-enhanced ultrasonography.Patients with nodule size ≤1cm 1 cm were group A and group B with nodule size> 1 cm.The enhancement features of each group of nodules were observed and compared.Results: ①There was no significant difference between the enhancement pattern and the enhancement degree of the nodules in group A (all P> 0.05), but there was statistical significance in the enhancement boundary (χ2 =20.387,P<0.05).In group B, the enhancement of the nodule, the enhancement pattern, the degree of enhancement and the difference of the enhancement boundary were statistically significant (all P<0.05).②In group B, Nonuniform low-intensity diagnosis of malignant nodules, and ring enhancement of nonuniform low-intensity diagnosis of benign nodules, had high clinical value and clinical significance.Conclusion: Contrast-enhanced ultrasonography has a high clinical value in the differential diagnosis of benign and malignant nodules> 1 cm.In contrast, contrast-enhanced ultrasonography has a variety of manifestations.
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