桥本甲状腺炎合并良恶性结节的超声影像特征比较

Comparison of ultrasonographic features of Hashimoto′s thyroiditis with benign and malignant nodules

目的探讨桥本甲状腺炎(HT)合并良恶性结节的超声影像特征。方法回顾性选取2016年2月~2019年12月泉州东南医院收治的87例HT合并结节患者作为研究对象,按照甲状腺结节穿刺病理组织检查结果分为恶性结节组(30例)与良性结节组(57例)。比较两组的二维超声影像特征(回声、形态、纵横比、声晕、微钙化、结构、边界)及彩色多普勒血流成像特征(血流分级、阻力指数值)。结果恶性结节组低回声、不规则形态、纵横比≥1、声晕、微钙化的比例高于良性结节组,差异有统计学意义(P<0.05);两组的结构、边界比较,差异无统计学意义(P>0.05)。恶性结节组的血流分级(Ⅱ、Ⅲ级)、阻力指数值≥0.7比例高于良性结节组,差异有统计学意义(P<0.05)。结论HT合并良、恶性结节在低回声、不规则形态、纵横比、声晕、微钙化及血流分级、阻力指数值等方面具有明显差异,有助于鉴别诊断。

Objective To investigate the ultrasonographic features of Hashimoto thyroiditis(HT)with benign and malignant nodules.Methods A total of 87 patients with HT complicated nodules admitted to Dongnan Hospital from February 2016 to December 2019 were retrospectively selected as the research subjects.According to the pathological examination results of thyroid nodule puncture,they were divided into malignant nodule group(30 cases)and benign nodule group(57 cases).The two-dimensional ultrasound imaging features(echo,morphology,aspect ratio,sound halo,microcalcification,structure,boundary)and color Doppler flow imaging features(flow grade,resistance index value)were compared between the two groups.Results The proportion of hypoecho,irregular shape,aspect ratio≥1,acoustic halo and microcalcification in the malignant nodules group were higher than those in the benign nodules group,and the differences were statistically significant(P<0.05).There were no significant differences in structure and boundary between the two groups(P>0.05).The proportion of the blood flow grade(gradeⅡandⅢ)and resistance index value≥0.7 in the malignant nodules group were higher than those in the benign nodules group,and the differences were statistically significant(P<0.05).Conclusion There were significant differences between benign and malignant HT nodules in low echo,irregular shape,aspect ratio,sound halo,microcalcification,blood flow grade and resistance index value,which were helpful for differential diagnosis.