超声弹性成像和常规超声诊断甲状腺良恶性结节的效果分析

Effect analysis of ultrasonic elastography and conventional ultrasound in the diagnosis of benign/malignant thyroid nodules

目的分析超声弹性成像和常规超声诊断甲状腺良恶性结节的效果。方法回顾性分析2013年10月~2016年10月我院经病理证实的93例(126个结节)甲状腺占位性病变患者的超声弹性成像与常规超声影像学资料,以手术组织病理结果为金标准,比较两种诊断方法诊断甲状腺良恶性结节的准确性。结果 126个甲状腺结节中,良性结节108个,占85.71%;恶性结节18个,占14.29%;超声弹性成像诊断的敏感度、特异度与准确度分别为82.41%、77.78%、81.75%,显著高于常规超声诊断结节良恶性的74.07%、66.67%、79.36%(P<0.05);超声弹性成像联合常规超声诊断的敏感度、特异度与准确度分别为93.52%、83.33%、92.06%,显著高于超声弹性成像及常规超声单一检查(P<0.05)。结论超声弹性成像在鉴别诊断甲状腺良恶性结节中明显优于常规超声,两者联合可有效提高诊断符合率。

Objective To analyze the effect of ultrasonic elastography and conventional ultrasound in the diagnosis of benign/malignant thyroid nodules.Methods From October 2013 to October 2016,imaging data of ultrasonic elastography and conventional ultrasound from 93 patients （126 nodules） with space-occupying lesion of thyroids testified by pathology in our hospital were retrospectively analyzed.Set outcome of histopathology by surgery as gold standard,the accuracy of the two methods diagnosing the benign/malignant thyroid nodules.Results Among 126 thyroid nodules,benign ones were 108 cases （85.71%）,and malignant ones were 18 （14.29%）.The sensitivity,specificity and accuracy of ultrasonic elastography diagnosis were 82.41%,77.78% and 81.75% respectively,which was higher than that in the conventional ultrasound accounting for 74.07%,66.67% and 79.36% in turn （P〈0.05）.The sensitivity,specificity and accuracy of ultrasonic elastography combined with conventional ultrasound were 93.52%,83.33%,92.06% respectively,which was superior to either of them （P〈0.05）.Conclusion In the differential diagnosis of benign/malignant thyroid nodules,ultrasonic elastography is better than that by conventional ultrasound.The combination can effectively improve the diagnostic accordance rate.