论文部分内容阅读
目的评价超声弹性成像(ultrasounic elastography,UE)应变率比值(strain ratio,SR)在甲状腺良恶性结节诊断中的应用价值。方法选取2013年10月~2015年10月经手术病理证实的甲状腺结节患者63例,术前均行UE检查,获得SR比值与弹性分级,绘制受试者工作曲线,确定SR比值的最佳诊断界点;以病理学为金标准,评价SR比值和弹性分级法对甲状腺结节的诊断价值。结果 SR比值良性结节均值为(1.88±1.35),恶性结节均值为(6.69±2.17),良恶性结节的SR比值比较差异有统计学意义(t=12.85,P<0.05);SR比值法对甲状腺结节的诊断准确性、敏感性和特异性分别为89.88%、90.20%和89.47%,均高于弹性分级法(80.89%,82.35%和78.95%),差异均有统计学意义(χ2=4.79、4.25、4.58,均P<0.05)。结论 SR比值法在甲状腺良恶性结节的诊断中具有较高的临床价值。
Objective To evaluate the value of ultrasonographic elastography (UE) strain ratio (SR) in the diagnosis of benign and malignant thyroid nodules. Methods Sixty-three patients with thyroid nodules confirmed by surgery and pathology from October 2013 to October 2015 were selected. The patients were examined with UE before operation and the SR and elastic grading were obtained. The working curve of the subjects was drawn to determine the best diagnosis of SR Borderline; pathology as the gold standard, evaluate the SR ratio and elastic grading method for the diagnosis of thyroid nodules. Results The mean SR of benign and malignant nodules was (1.88 ± 1.35) and (6.69 ± 2.17) respectively, and the SR ratio of benign and malignant nodules was statistically significant (t = 12.85, P <0.05) The accuracy, sensitivity and specificity of the method for the diagnosis of thyroid nodules were 89.88%, 90.20% and 89.47%, respectively, which were higher than those of the elastic grading method (80.89%, 82.35% and 78.95%, respectively) χ2 = 4.79,4.25,4.58, all P <0.05). Conclusion SR ratio in the diagnosis of benign and malignant thyroid nodules has a high clinical value.