摘要
Abstract
ObjectiveTo explore the clinical value of the high frequency color doppler ultrasound in the diagnosis of benign and malignant thyroid nodules.Methods 185 patients with thyroid nodules (369 nodules) were received high frequency color doppler ultrasound. Imaging features were analyzed and the signs of benign thyroid nodules and malignant thyroid nodules were compared.Results The sensitivity, specificity, positive predictive value, negative predictive value of the high frequency color doppler ultrasound in the examination of benign and malignant thyroid nodules were respectively 97.01%, 95.59%, 98.98% and 87.84%. Ultrasound examination found that benign nodules usually laterally grew with regular contour and clear boundary accompanied by internal echoes mostly including media echo, high echo and no echo and most benign nodules were non-calcified. The differences between benign thyroid nodules and malignant thyroid nodules were statistically significant (P<0.05). Blood flow was compared. The number of type Ⅰ blood flow, type Ⅱ blood flow, type Ⅲ blood flow, type Ⅳ blood flow were respectively 134, 123, 35 and 9 in the 301 cases of benign nodules. While the number of type Ⅰ blood flow, type Ⅱ blood flow, type Ⅲ blood flow, type Ⅳ blood flow were respectively 11, 9, 32 and 16 in 68 cases of malignant nodules. The difference was statistically significant (P<0.05).Conclusion There are obvious differences in the acoustic images of benign thyroid nodules and malignant thyroid nodules as well as some crossed common features. Angulated edge and internal micro calcification of nodules and abnormal lymphadenopathy of the neck is helpful in the diagnosis of papillary thyroid carcinoma. Acoustic images of thyroid adenoma and thyroid follicular cancer are extremely similar which needs to be cautious when differentiating. A comprehensive and synthetic analysis of Two-dimensional imaging and color Doppler flow imaging can improve the diagnostic rate of benign and malignant thyroid nodules. High frequency color doppler ultrasound has important value in the differential diagnosis of benign and malignant thyroid nodules which can be the preferred imaging examination in clinical practice.关键词
高频彩色多普勒超声/甲状腺良性结节/甲状腺恶性结节/鉴别诊断Key words
High frequency color doppler ultrasound/Benign thyroid nodules/Malignant thyroid nodules/Differential diagnosis分类
医药卫生
