超声弹性成像在不同大小甲状腺结节性疾病诊断中的应用价值分析

Application Value Analysis of Ultrasound Elastography in the Diagnosis of Thyroid Nodules with Different Size

目的探讨超声弹性成像在不同大小甲状腺结节性疾病中的诊断价值。方法选择甲状腺结节患者105例(182个病灶)为研究对象,根据结节长径分为A、B、C三组,采用5分法对甲状腺结节的弹性评分,≤2分为良性结节,≥3分则为恶性结节,比较超声弹性成像检查结果与病理结果。结果病理诊断共检出恶性结节70个,良性结节112个;超声弹性成像共检出144个病灶,其中恶性病灶54个,良性病灶90个。A组诊断敏感度、准确度分别为97.92%、90.38%,均高于B组与C组,差异有统计学意义(P<0.05),而三组特异度则无明显差异。结论超声弹性成像在不同大小甲状腺结节中的诊断结果不同,在长径<1 cm甲状腺结节中的诊断价值最高。

Objective To evaluate the diagnostic value of ultrasound elastography in the diagnosis of thy-roid nodules with different sizes. Methods 105 patients with thyroid nodules （182 lesions） who accepted treat-ments in our hospital were selected as the research objects,and all patients received ultrasound elastography. Then,according to the length of nodules, all patients were divided into three groups ： A , B and C. The elastic score of thyroid nodules was graded via a 5 - score method and it was defined as following ： thyroid nodulesscore less than 2 points were regarded as benign nodule, while those score more than 3 points were regarded as malignant nodules. Finally,the examination results and the pathological results of ultrasound elastography were compared. Results Pathologic diagnosis detected out 70 cases of malignant nodules and 112 cases of benign nodules, while ultrasonic elastography detected out 144 cases of lesions, including 54 cases of malignant lesions and 90 cases of benign le-sions. The diagnostic sensitivity and accuracy of group A were 97. 92% and 90. 38% , which were significantly higher than those in B group and C group, respectively （P 〈0.05）. However, there was no significant difference among the three groups in their specificity. Conclusion The diagnostic value of ultrasound elastography varied with the size of thyroid nodules, which could reach to the highest diagnostic value when the long diameter of the di-agnosed thyroid nodules was lower than 1 cm.