Diagnostic value of color Doppler ultrasound in malignant thyroid nodule and lymph node metastasis
Objective:To evaluate the diagnostic value of color Doppler ultrasonography(color ultrasound)in malignant thyroid nodules and lymph node metastasis.Methods:116 patients with thyroid nodules admitted to our hospital from April 2021 to April 2023 were selected as the study objects.With pathological results as the"gold standard",color ultrasound results were compared with pathological results.The ultrasonic features of benign and malignant nodules were compared.The results of lymph node metastasis were compared between color ultrasound and pathology.The imaging findings of benign hyperplastic lymph nodes and metastatic lymph nodes were compared.Results:Among 116 patients with thyroid nodules,62 cases were malignant and 54 cases were benign.The diagnostic sensitivity,specificity and accuracy of color ultrasound were 96.77%,96.30%and 96.55%.The incidence of irregular lesion,unclear boundary,silent halo,low echo and microcalcification in malignant nodules was higher than that in benign nodules(P<0.05).In 62 patients with malignant thyroid nodules,a total of 102 enlarged lymph nodes were detected by ultrasonography,34 benign hyperplastic lymph nodes and 68 metastatic lymph nodes were pathologically diagnosed.The sensitivity,specificity and accuracy of ultrasound diagnosis were 79.41%,88.24%and 82.35%.The L/S ratio of metastatic lymph nodes was<2,the structure of lymphatic portal disappeared,and the proportion of cystic lymph nodes was greater than that of benign hyperplastic nodules(P<0.05).Conclusion:Color ultrasound can be used to identify benign and malignant nodules by imaging features,and has a high diagnostic value for malignant thyroid nodules and lymph node metastasis.
Color Doppler ultrasoundThyroid nodulesLymph node metastasis
万方数据
维普
