彩色多普勒超声评价肿瘤血管在甲状腺结节诊断中的应用

目的:研究甲状腺结节内肿瘤血管及颈部转移淋巴结的彩色多普勒超声表现。方法:分析42例甲状腺癌和46例甲状腺良性结节的血管形态及血流动力学特征。结果:甲状腺癌及甲状腺癌复发病例中,69.0%(29/42)血流为Alder2级或3级,38.1%(16/42)可见穿入性或分支异常的血管,71.4%(30/42)血流为高阻力型(RI>0.7)。甲状腺良性结节中,上述表现发生率分别为39.1%(18/46)、6.5%(3/46)、10.9%(5/46)。23例甲状腺癌可见颈部转移性淋巴结,其中82.6%(19/23)的血流形态表现为紊乱分布的包膜下血流。结论:甲状腺癌肿瘤血管的发现及颈部淋巴结的血流表现有助于甲状腺癌的正确诊断。

Diagnostic Value of Color Doppler Flow Imaging in Assessing Tumor Blood Vessels in Thyroid Nodules

Objectives:To investigate the color Doppler sonographic features of tumor blood vessels in thyroid carcinoma and cervical metastasis lymph node.Methods:88 patients with thyroid nodules were included in this study.The tumor blood vessels and cervical lymph nodes were evaluated by color Doppler sonography.Results:Alder 2 or Alder 3 pattern on color Doppler flow imaging were found in 69.0% (29/42) of the patients with thyroid carcinoma and in 39.1% (18/46) of that of benign nodules.Penetrating blood vessel or blood vessel with multiple ramifications were found in 38.1% (16/42) of the patients with thyroid carcinoma and in 6.5% (3/46) of that of benign nodules.Resistance index more than 0.7 were found in 71.4% (30/42) of the patients with thyroid carcinoma and in 10.9% (5/46) of that of benign nodules.Metastasis of cervical lymph node were found in 23 patients,82.6%(19/23) of which had turbulence blood vessel under the capsula of cervical lymph node.Conclusion:The color Doppler sonographic features of tumor blood vessels and cervical metastasis lymph node are helpful in diagnosis of thyroid carcinoma.