高频超声对甲状腺肿块良恶性的临床诊断价值

The clinical diagnostic value of high-frequency ultrasound in diagnosis of thyroid benign and malignant tumors

目的 分析甲状腺肿块的二维声像图特点及多普勒检查中的血流峰值变化,探讨高频超声对甲状腺肿块的良恶性诊断价值.方法 收集80例病人的104个甲状腺肿块声像图,根据二维声像图中肿块的形态、边界、侧壁回声失落或后方回声衰减、内部回声、微小钙化及多普勒检查中的收缩期血流峰值（Vmax）和阻力指数（RI）,将肿块预期分为良性和恶性两组,将高频超声预期结果与术后病理结果进行对比,比较二者的符合率和误差率.结果 高频超声预测良性肿块66个,病理检查为61个,二者的符合率为92.4%;预测恶性肿块为38个,病理检查为32个,二者的符合率为84.2%;预测总符合率为89.4%（93/104）,误差率为11.6%（11/104）.结论 根据高频超声检测甲状腺肿块的声像图特点,能对甲状腺肿块的良恶性进行初步判断,对患者及临床治疗有重要的意义.

Objective To detect and analyze thyroid tumor by two-dimensional sonogram and Doppler parameter, and evaluate the value of high-frequency ultrasound in diagnosing thyroid benign and malignant tumors. Methods The ultrasonic images of 104 thyroid tumor from 80 patients with typical features were collected. Thyroid tumor was classified into benign and malignant nodules, based on the shape, border, or the rear wall echo, echo attenuation loss, internal echo, and microcalcifications in two-dimensional sonogram and systolic blood peak velocity （Vmax） and resistant index （RI） in Doppler examination. The expected results of high frequency ultrasound were compared with pathological results on consistency and error rate. Results Prediction of benign tumor by high frequency ultrasound was 66, and pathology 61, consistency rate of the two was 92.4%. Prediction of malignant lesions was 38, and pathological examination 32, consistency rate of the two was 84.2%. The total coincidence rate was 89.4%（93/104） and the error rate was 11.6%（ 11/104）. Conclusions The typical features of thyroid tumor on high-frequency ultrasound are helpful in diagnosis of benign or malignant nodules, which is valuable in guiding clinical treatment.