摘要
目的 :探讨二维及彩色多普勒超声对甲状腺良、恶性结节的诊断及鉴别诊断价值。方法 :12 0例甲状腺结节经二维超声了解其声像图表现 ,然后用彩色多普勒检查 ,观察结节内部及周边血流分布情况 ,并将其分为 4级。结果 :12 0例 30 2个甲状腺结节中 ,良性结节 2 6 4个 ,恶性结节 38个。二维超声显示 :恶性结节以实性低回声为主 ,内可见砂粒样钙化 ,边界不清 ,无声晕及包膜 ;良性结节以等、高回声及囊性、囊实性结节为主 ,形态规则 ,边界清 ,多有声晕及包膜。彩色多普勒超声显示 :恶性结节的血流显示率明显高于良性结节 ,收缩期最高血流速度及阻力指数总体上高于良性结节 ,且以Ⅱ、Ⅲ级血流为主。结论 :二维及彩色多普勒超声诊断甲状腺良、恶性结节准确率高 ,具有较大的临床应用价值。
Objective:To evaluate the diagnostic role of two-dimensional ultrasonography and color Doppler flow imaging (CDFI) in differentiation of malignant and benign nodules of thyroid gland.Methods:120 cases (302 nodules) were examined by conventional ultrasonography to observe the appearance,and to survey inside and peripheral blood flows by CDFI,the vascular distribution on CDFI was classified as grades 4.Results:On histology,264 nodules were diagnosed as benign and 38 nodules as malignant.Malignant nodules were more often ill defined,hypoechogenic,solid,irregular,absent of halo sign and contain microcalcification.The grade Ⅱ,Ⅲ distributon on CDFI were more often found in malignant nodules.Conclusion:The combination of tow-dimensional ultrasonography,characteristic and vascular disribution on CDFI in thyroid nodules possess high clinical practical value and can improve the accuracy of differential diagnosis.
出处
《医学影像学杂志》
2004年第8期631-633,共3页
Journal of Medical Imaging
关键词
甲状腺结节
超声检查
彩色多普勒血流显像
诊断
鉴别
Ultrasonography
Color Doppler flow imaging
Thyroid nodules
Diagnosis,differential
