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目的评价甲状腺结节超声特征在甲状腺癌诊断中的准确性。方法回顾分析228例患者甲状腺可疑结节的超声特征,包括结节大小、边界、回声、结节后方回声衰减、声晕、结节内钙化、结节纵横比、结节内部及周边血流、同侧颈部异常淋巴结等,并与穿刺病理结果比较,计算每一个超声特征的特异性、敏感性、阳性预测值及阴性预测值。结果 228例患者共检出甲状腺可疑结节267个,有18例发现颈部淋巴结转移。甲状腺良恶性结节在发病年龄及结节最大径方面比较差异无统计学意义,在性别及其他各项甲状腺结节特征方面比较差异均有统计学意义(均P<0.05)。结论超声各参数诊断甲状腺癌的阳性预测值以结节纵横比≥1、结节后方回声衰减及结节内钙化最高。
Objective To evaluate the accuracy of thyroid nodules in the diagnosis of thyroid cancer. Methods We retrospectively analyzed the ultrasonographic features of suspicious thyroid nodules in 228 patients, including nodule size, borderline, echogenicity, echogenic attenuation in the posterior nodule, acoustic halo, intracranial calcification, nodule aspect ratio, nodule internal and peripheral blood flow, Ipsilateral neck abnormal lymph nodes, and compared with the puncture pathology results, calculate the specificity of each ultrasound features, sensitivity, positive predictive value and negative predictive value. Results A total of 267 suspicious thyroid nodules were detected in 228 patients, and cervical lymph node metastases were found in 18 patients. The benign and malignant thyroid nodules showed no significant difference in the age of onset and the maximum diameter of nodules. There were significant differences in gender and other features of thyroid nodules (P <0.05). Conclusion The positive predictive value of ultrasonic parameters in the diagnosis of thyroid cancer with nodule aspect ratio ≥1, echogenic attenuation in the posterior nodule and highest nodular calcification.