甲状腺实性结节的超声造影表现

The manifestations of solid thyroid nodules on contrast-enhanced ultrasound

目的:探讨甲状腺实性结节的超声造影表现特征,评估其对结节良恶性鉴别的临床意义。方法:对2012年9月至2013年2月在我院拟行手术切除或穿刺活检并最终获得病理结果的32例(34个)甲状腺实性结节患者进行超声造影检查,分析其增强表现。结果:32例患者共34个甲状腺实性结节(22个良性结节,12个恶性结节),超声造影表现呈不均匀增强者中良性结节2个,恶性结节9个;呈均匀增强者中良性结节3个,恶性结节2个;呈环状增强者中良性结节17个,恶性结节1个;无结节呈现无增强。结论:甲状腺良性结节超声造影表现多为环状增强,恶性结节表现多为不均匀性增强;上述超声造影增强模式的差异能为甲状腺结节良恶性的鉴别诊断带来帮助。

Objective To investigate the featured manifestations of thyroid solid nodules on contrast- enhanced ultrasound （CEUS）, and to assess the clinical value of these manifestations in distinguishing the benign thyroid nodules from the malignancies. Methods CEUS examinations were performed on 32 patients with 34 thyroid solid nodules who had the final pathological results of the nodules during the period of september 2012 to february 2013. The enhancement features of the nodules were analyzed. Results There were 22 benign and 12 malignant nodules in 32 patients. 2 benign and 9 malignant nodules were demonstrated heterogeneous enhancement, 3 benign and 2 malignant nodules were demonstrated homogeneous enhancement, and 17 benign and one malignant nodules were demonstrated ring-shaped enhancement. No nodules showed free-enhancement. Conclusions Benign nodules are mostly ring-shaped enhancement on contrast-enhanced ultrasound examinations and malignancies are mainly heterogeneous enhancement. The difference in the enhancement modes is helpful in the differential diagnosis of thyroid nodules.