彩色多普勒超声在腮腺肿瘤良恶性鉴别中的应用

Application of color Doppler ultrasound in the diagnosis of benign and malignant parotid gland tumors

目的探讨彩色多普勒超声检查对腮腺肿瘤良恶性的诊断价值。方法选取我院50例腮腺肿瘤患者,在术前采用彩色多普勒超声检查对肿瘤的性质进行评估,并将检查结果与术后病理结果对比,分析彩色多普勒超声在腮腺肿瘤良恶性鉴别中的价值。结果1)彩色多普勒超声检查评估腮腺肿瘤良恶性的准确度为88.00%(44/50),灵敏度为90.91%(20/22),特异度为92.91%(24/28),阳性预测值为83.33%(20/24),阴性预测值为92.31%(24/26);2)在彩色多普勒声像图中,良性肿瘤的血流信号较少,恶性肿瘤的血流信号较丰富,频谱多普勒显示良、恶性肿瘤内收缩期峰值血流速度分别为(23.69±4.37)cm/s、(34.39±8.11)cm/s,血流阻力指数分别为0.63±0.06、0.72±0.03,差别均具有统计学意义,且针对收缩期峰值血流速度、阻力指数判断腮腺肿瘤良恶性的ROC曲线显示,两者的曲线下面积分别为0.869与0.937,当收缩期峰值血流速度临界值为30.61 cm/s时,灵敏度为68.2%,特异度为92.9%,当阻力指数临界值为0.70时,灵敏度为77.3%,特异度为92.8%。结论彩色多普勒超声检查对腮腺肿瘤的诊断具有较高的准确性,可为腮腺肿瘤良恶性的鉴别提供重要依据,进而协助临床选择个体化手术方案。

Objective To explore the diagnostic value of color Doppler ultrasound in the diagnosis of benign and malignant parotid gland tumors.Methods We selected 50 patients with parotid gland tumors admitted to our hospital from January 2020 to December 2020.Color Doppler ultrasound was used to evaluate the kind of the tumors before surgery,and the results were compared with the postoperative pathological results.The value of color Doppler ultrasound in the differentiation of benign and malignant parotid gland tumors were analyzed.Results 1)The accuracy of color Doppler ultrasound in evaluating benign and malignant parotid gland tumors was 88.00%(44/50),the sensitivity was 90.91%(20/22),the specificity was 92.91%(24/28),and the positive prediction value was 83.33%(20/24),and the negative predictive value was 92.31%(24/26);2)In the color Doppler image,the blood flow signal of benign tumors was less,and the blood flow signal of malignant tumors was abundant.Pulse wave Doppler showed that the peak systolic velocity of benign and malignant tumors was(23.69±4.37)cm/s and(34.39±8.11)cm/s,the resistance index was 0.63±0.06 and 0.72±0.03,the difference was statistically significant,and the ROC curve for diagnosis benign and malignant parotid gland tumors based on the peak systolic velocity and resistance index showed that the critical value of the peak systolic velocity was 30.61 cm/s,the sensitivity was 68.2%,the specificity was 92.9%.When the resistance index critical value was 0.70,the sensitivity was 77.3%,the specificity was 92.8%.Conclusion Color Doppler ultrasound has high accuracy in the diagnosis of parotid gland tumors,which can provide an important basis for the differentiation of benign and malignant parotid gland tumors,thereby assisting the clinical selection of individualized surgical procedures.