多普勒高频超声特征诊断超声造影表现为无增强的甲状腺结节良恶性的差异对比

Comparative analysis of the difference between benign and malignant thyroid nodules diagnosed with no enhancement by high-frequency Doppler ultrasound characteristics

目的探讨多普勒高频超声特征诊断超声造影表现为无增强的甲状腺结节良恶性的差异。方法选取2020年10月至2021年11月武城县中医院收治的46例超声造影表现为无增强的甲状腺结节患者作为研究对象,所有患者均接受病理诊断,根据病理诊断结果将结节分为良性组与恶性组,比较两组高频超声特征,包括毛刺、回声、钙化、血流分级情况及阻力指数(RI)、动脉血流收缩期峰值流速(SPV)。结果经病理检查结果显示,46例患者中共检出82个甲状腺结节,其中良性甲状腺结节37个,恶性甲状腺结节45个。恶性组结节存在毛刺、低回声、微小钙化、血流分级Ⅱ级所占的比例均高于良性组,差异有统计学意义(P<0.05)。两组RI、SPV比较差异无统计学意义。结论多普勒高频超声检查在鉴别良恶性甲状腺结节中具有良好的诊断效能,恶性结节多见有毛刺、低回声、微小钙化现象,且血流分级主要为Ⅱ级。

Objective To investigate the difference between benign and malignant thyroid nodules diagnosed with no enhancement by high-fre-quency Doppler ultrasound characteristics.Methods A total of 46 patients with thyroid nodules showing no enhancement by contra-frequency ultra-sound were selected from Wucheng Hospital of Traditional Chinese Medicine from October 2020 to November 2021,all patients received pathologi-cal diagnosis,and nodules were divided into the benign group and the malignant group according to pathological diagnosis results.High-frequency ultrasound characteristics of the two groups were compared,including burr,echo,calcification,blood grading,resistance index(RI),and seak systolic flow velocity(SPV).Results A total of 82 thyroid nodules were detected in 46 patients,of which 37 were benign and 45 were malignant.The per-centages of burr,hypoecho,microcalcification and gradeⅡblood flow in malignant group were higher than those in benign group,and the differenc-es were statistically significant(P<0.05).There were no significant differences in RI and SPV between the two groups.Conclusion High-frequen-cy Doppler ultrasound has a good diagnostic efficacy in differentiating benign and malignant thyroid nodules,the malignant nodules usually have burrs,low echo and small calcification,and the blood flow grading is mainly gradeⅡ.